/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:08:28,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:08:28,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:08:28,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:08:28,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:08:28,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:08:28,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:08:28,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:08:28,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:08:28,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:08:28,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:08:28,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:08:28,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:08:28,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:08:28,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:08:28,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:08:28,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:08:28,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:08:28,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:08:28,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:08:28,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:08:28,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:08:28,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:08:28,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:08:28,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:08:28,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:08:28,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:08:28,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:08:28,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:08:28,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:08:28,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:08:28,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:08:28,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:08:28,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:08:28,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:08:28,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:08:28,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:08:28,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:08:28,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:08:28,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:08:28,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:08:28,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:08:28,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:08:28,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:08:28,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:08:28,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:08:28,340 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:08:28,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:08:28,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:08:28,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:08:28,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:08:28,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:08:28,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:08:28,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:08:28,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:08:28,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:08:28,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:08:28,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:08:28,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:08:28,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:08:28,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:08:28,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:08:28,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:08:28,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:08:28,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:08:28,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:08:28,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:08:28,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:08:28,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:08:28,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:08:28,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:08:28,685 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:08:28,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label54.c [2020-10-12 15:08:28,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4b7e552/4a52f8c669dd4e5199c50623b6ce47db/FLAG4abb0dff3 [2020-10-12 15:08:29,476 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:08:29,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label54.c [2020-10-12 15:08:29,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4b7e552/4a52f8c669dd4e5199c50623b6ce47db/FLAG4abb0dff3 [2020-10-12 15:08:29,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4b7e552/4a52f8c669dd4e5199c50623b6ce47db [2020-10-12 15:08:29,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:08:29,660 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:08:29,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:29,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:08:29,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:08:29,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:29" (1/1) ... [2020-10-12 15:08:29,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49215c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:29, skipping insertion in model container [2020-10-12 15:08:29,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:29" (1/1) ... [2020-10-12 15:08:29,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:08:29,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:08:31,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:31,326 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:08:31,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:31,876 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:08:31,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31 WrapperNode [2020-10-12 15:08:31,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:31,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:08:31,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:08:31,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:08:31,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:31,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:31,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:31,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:32,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:32,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:32,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... [2020-10-12 15:08:32,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:08:32,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:08:32,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:08:32,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:08:32,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:08:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:08:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:08:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:08:32,290 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:08:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:08:32,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:08:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:08:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:08:32,291 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:08:32,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:08:38,374 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:08:38,374 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:08:38,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:08:38 BoogieIcfgContainer [2020-10-12 15:08:38,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:08:38,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:08:38,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:08:38,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:08:38,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:08:29" (1/3) ... [2020-10-12 15:08:38,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c09fa54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:08:38, skipping insertion in model container [2020-10-12 15:08:38,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:31" (2/3) ... [2020-10-12 15:08:38,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c09fa54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:08:38, skipping insertion in model container [2020-10-12 15:08:38,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:08:38" (3/3) ... [2020-10-12 15:08:38,400 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label54.c [2020-10-12 15:08:38,412 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:08:38,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:08:38,443 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:08:38,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:08:38,482 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:08:38,483 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:08:38,483 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:08:38,483 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:08:38,483 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:08:38,483 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:08:38,484 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:08:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:08:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:08:38,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:38,535 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] [2020-10-12 15:08:38,535 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:38,544 INFO L82 PathProgramCache]: Analyzing trace with hash 466768385, now seen corresponding path program 1 times [2020-10-12 15:08:38,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:38,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427342931] [2020-10-12 15:08:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:38,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:39,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:39,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-12 15:08:39,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-12 15:08:39,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:08:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:08:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 15:08:39,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:08:39,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:39,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:39,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:08:39,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:08:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:08:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:08:39,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427342931] [2020-10-12 15:08:39,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:08:39,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 15:08:39,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145315824] [2020-10-12 15:08:39,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:08:39,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:39,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:08:39,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:08:39,535 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 15:08:47,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:47,134 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 15:08:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:08:47,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-12 15:08:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:47,165 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 15:08:47,165 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 15:08:47,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:08:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 15:08:47,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 15:08:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 15:08:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-12 15:08:47,328 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 40 [2020-10-12 15:08:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:47,330 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-12 15:08:47,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:08:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-12 15:08:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 15:08:47,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:47,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:08:47,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:08:47,337 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:47,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:47,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1278365916, now seen corresponding path program 1 times [2020-10-12 15:08:47,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:47,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243999807] [2020-10-12 15:08:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:47,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:48,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:48,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-12 15:08:48,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:08:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-12 15:08:48,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:08:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:08:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:08:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:08:48,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:48,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:08:48,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:08:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:48,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:48,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:48,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:08:48,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:48,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-12 15:08:48,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:08:48,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 15:08:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:08:48,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243999807] [2020-10-12 15:08:48,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:08:48,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:08:48,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143231863] [2020-10-12 15:08:48,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:48,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:48,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:48,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:48,508 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 7 states. [2020-10-12 15:08:59,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:59,699 INFO L93 Difference]: Finished difference Result 4352 states and 7148 transitions. [2020-10-12 15:08:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:08:59,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-12 15:08:59,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:59,717 INFO L225 Difference]: With dead ends: 4352 [2020-10-12 15:08:59,718 INFO L226 Difference]: Without dead ends: 2933 [2020-10-12 15:08:59,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:08:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2020-10-12 15:08:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2876. [2020-10-12 15:08:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2876 states. [2020-10-12 15:08:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4032 transitions. [2020-10-12 15:08:59,838 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4032 transitions. Word has length 110 [2020-10-12 15:08:59,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:59,841 INFO L479 AbstractCegarLoop]: Abstraction has 2876 states and 4032 transitions. [2020-10-12 15:08:59,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:08:59,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4032 transitions. [2020-10-12 15:08:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 15:08:59,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:59,851 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:08:59,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:08:59,852 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:59,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:59,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1404999961, now seen corresponding path program 1 times [2020-10-12 15:08:59,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:59,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470354783] [2020-10-12 15:08:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:59,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 15:09:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-12 15:09:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 15:09:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:00,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:00,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:00,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:09:00,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:00,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:00,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 15:09:00,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:00,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:09:00,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:00,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 15:09:00,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:00,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470354783] [2020-10-12 15:09:00,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:00,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:09:00,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315561859] [2020-10-12 15:09:00,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:09:00,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:00,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:09:00,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:09:00,719 INFO L87 Difference]: Start difference. First operand 2876 states and 4032 transitions. Second operand 7 states. [2020-10-12 15:09:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:09,590 INFO L93 Difference]: Finished difference Result 7278 states and 10092 transitions. [2020-10-12 15:09:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:09:09,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2020-10-12 15:09:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:09,613 INFO L225 Difference]: With dead ends: 7278 [2020-10-12 15:09:09,613 INFO L226 Difference]: Without dead ends: 4408 [2020-10-12 15:09:09,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:09:09,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2020-10-12 15:09:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4370. [2020-10-12 15:09:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4370 states. [2020-10-12 15:09:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 5829 transitions. [2020-10-12 15:09:09,735 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 5829 transitions. Word has length 111 [2020-10-12 15:09:09,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:09,735 INFO L479 AbstractCegarLoop]: Abstraction has 4370 states and 5829 transitions. [2020-10-12 15:09:09,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:09,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 5829 transitions. [2020-10-12 15:09:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-12 15:09:09,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:09,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:09,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:09:09,739 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:09,739 INFO L82 PathProgramCache]: Analyzing trace with hash 90440645, now seen corresponding path program 1 times [2020-10-12 15:09:09,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:09,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609486614] [2020-10-12 15:09:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:09,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:09,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:11,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:11,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-12 15:09:11,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:11,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-12 15:09:11,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:11,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:11,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:11,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 15:09:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:11,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:11,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:11,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:11,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:11,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:09:11,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:11,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:11,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:11,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:11,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:11,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:11,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 15:09:11,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:11,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-12 15:09:11,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:11,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 15:09:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:09:11,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609486614] [2020-10-12 15:09:11,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:09:11,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:09:11,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162498734] [2020-10-12 15:09:11,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:09:11,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:09:11,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:09:11,567 INFO L87 Difference]: Start difference. First operand 4370 states and 5829 transitions. Second operand 7 states. [2020-10-12 15:09:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:21,859 INFO L93 Difference]: Finished difference Result 11709 states and 15835 transitions. [2020-10-12 15:09:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:09:21,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-10-12 15:09:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:21,899 INFO L225 Difference]: With dead ends: 11709 [2020-10-12 15:09:21,900 INFO L226 Difference]: Without dead ends: 7345 [2020-10-12 15:09:21,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:09:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2020-10-12 15:09:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 6587. [2020-10-12 15:09:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6587 states. [2020-10-12 15:09:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6587 states to 6587 states and 8347 transitions. [2020-10-12 15:09:22,096 INFO L78 Accepts]: Start accepts. Automaton has 6587 states and 8347 transitions. Word has length 137 [2020-10-12 15:09:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:22,097 INFO L479 AbstractCegarLoop]: Abstraction has 6587 states and 8347 transitions. [2020-10-12 15:09:22,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6587 states and 8347 transitions. [2020-10-12 15:09:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-12 15:09:22,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:22,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:22,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:09:22,102 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:22,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1671945420, now seen corresponding path program 1 times [2020-10-12 15:09:22,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:22,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93740316] [2020-10-12 15:09:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:22,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-12 15:09:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:09:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-12 15:09:23,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:09:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-12 15:09:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:23,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:23,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:23,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:23,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:23,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:09:23,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:23,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:23,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:23,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:23,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:23,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:09:23,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-12 15:09:23,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-12 15:09:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:09:23,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93740316] [2020-10-12 15:09:23,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:23,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:09:23,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032815310] [2020-10-12 15:09:23,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 15:09:23,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:23,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 15:09:23,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:09:23,726 INFO L87 Difference]: Start difference. First operand 6587 states and 8347 transitions. Second operand 6 states. [2020-10-12 15:09:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:35,563 INFO L93 Difference]: Finished difference Result 17694 states and 23203 transitions. [2020-10-12 15:09:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:09:35,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2020-10-12 15:09:35,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:35,608 INFO L225 Difference]: With dead ends: 17694 [2020-10-12 15:09:35,609 INFO L226 Difference]: Without dead ends: 11113 [2020-10-12 15:09:35,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:09:35,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2020-10-12 15:09:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 10300. [2020-10-12 15:09:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10300 states. [2020-10-12 15:09:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10300 states to 10300 states and 12727 transitions. [2020-10-12 15:09:35,892 INFO L78 Accepts]: Start accepts. Automaton has 10300 states and 12727 transitions. Word has length 226 [2020-10-12 15:09:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:35,893 INFO L479 AbstractCegarLoop]: Abstraction has 10300 states and 12727 transitions. [2020-10-12 15:09:35,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 15:09:35,893 INFO L276 IsEmpty]: Start isEmpty. Operand 10300 states and 12727 transitions. [2020-10-12 15:09:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-12 15:09:35,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:35,904 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:35,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:09:35,905 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:35,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:35,905 INFO L82 PathProgramCache]: Analyzing trace with hash -268365553, now seen corresponding path program 1 times [2020-10-12 15:09:35,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:35,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583681627] [2020-10-12 15:09:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:36,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:36,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:39,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:39,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-12 15:09:39,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:09:39,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3724 [2020-10-12 15:09:39,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:09:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 15:09:39,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:39,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:39,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:39,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:39,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:39,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:09:39,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:39,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:39,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:39,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:39,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:39,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:09:39,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-12 15:09:39,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:09:39,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:40,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:09:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:40,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:40,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:40,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:09:40,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-12 15:09:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:40,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:09:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:40,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 15:09:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:40,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:09:40,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 15:09:40,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:09:40,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-12 15:09:40,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583681627] [2020-10-12 15:09:40,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:40,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:09:40,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403876560] [2020-10-12 15:09:40,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:09:40,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:40,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:09:40,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:09:40,732 INFO L87 Difference]: Start difference. First operand 10300 states and 12727 transitions. Second operand 7 states. [2020-10-12 15:09:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:52,620 INFO L93 Difference]: Finished difference Result 25053 states and 31572 transitions. [2020-10-12 15:09:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:09:52,621 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2020-10-12 15:09:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:52,658 INFO L225 Difference]: With dead ends: 25053 [2020-10-12 15:09:52,658 INFO L226 Difference]: Without dead ends: 12477 [2020-10-12 15:09:52,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:09:52,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12477 states. [2020-10-12 15:09:52,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12477 to 12391. [2020-10-12 15:09:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12391 states. [2020-10-12 15:09:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12391 states to 12391 states and 13755 transitions. [2020-10-12 15:09:52,916 INFO L78 Accepts]: Start accepts. Automaton has 12391 states and 13755 transitions. Word has length 421 [2020-10-12 15:09:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:52,917 INFO L479 AbstractCegarLoop]: Abstraction has 12391 states and 13755 transitions. [2020-10-12 15:09:52,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 12391 states and 13755 transitions. [2020-10-12 15:09:52,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-10-12 15:09:52,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:52,932 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:52,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:09:52,933 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:52,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:52,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2134513876, now seen corresponding path program 1 times [2020-10-12 15:09:52,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:52,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024055841] [2020-10-12 15:09:52,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:53,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:53,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:55,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:58,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:58,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 542 [2020-10-12 15:09:58,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:09:58,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-12 15:09:58,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:58,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:09:58,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:09:58,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:58,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:58,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:58,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:58,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:09:58,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:58,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:58,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:58,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:59,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:59,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:09:59,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-12 15:09:59,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:59,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:09:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:09:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:09:59,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 15:09:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:09:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:09:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:59,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:09:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:59,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:59,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:59,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:09:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:09:59,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:09:59,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-12 15:09:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:59,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:59,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:09:59,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:59,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:09:59,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:59,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-12 15:09:59,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 99 proven. 169 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-12 15:09:59,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024055841] [2020-10-12 15:09:59,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:59,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 15:09:59,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805516080] [2020-10-12 15:09:59,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:09:59,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:59,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:09:59,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:09:59,877 INFO L87 Difference]: Start difference. First operand 12391 states and 13755 transitions. Second operand 9 states. [2020-10-12 15:10:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:08,047 INFO L93 Difference]: Finished difference Result 31716 states and 36124 transitions. [2020-10-12 15:10:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 15:10:08,052 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 526 [2020-10-12 15:10:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:08,110 INFO L225 Difference]: With dead ends: 31716 [2020-10-12 15:10:08,111 INFO L226 Difference]: Without dead ends: 19331 [2020-10-12 15:10:08,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-12 15:10:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19331 states. [2020-10-12 15:10:08,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19331 to 18341. [2020-10-12 15:10:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18341 states. [2020-10-12 15:10:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18341 states to 18341 states and 20412 transitions. [2020-10-12 15:10:08,554 INFO L78 Accepts]: Start accepts. Automaton has 18341 states and 20412 transitions. Word has length 526 [2020-10-12 15:10:08,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:08,556 INFO L479 AbstractCegarLoop]: Abstraction has 18341 states and 20412 transitions. [2020-10-12 15:10:08,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:10:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 18341 states and 20412 transitions. [2020-10-12 15:10:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2020-10-12 15:10:08,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:08,600 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:08,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:10:08,601 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:08,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2051567852, now seen corresponding path program 1 times [2020-10-12 15:10:08,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:08,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766400374] [2020-10-12 15:10:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:08,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:09,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:10,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:13,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:13,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1075 [2020-10-12 15:10:13,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:13,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-12 15:10:13,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:13,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1035 [2020-10-12 15:10:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 15:10:13,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:14,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:10:14,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:14,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:10:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:14,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:10:14,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:14,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:10:14,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:14,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:14,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:10:14,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:14,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:10:14,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:14,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:14,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:10:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:14,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 15:10:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-10-12 15:10:15,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766400374] [2020-10-12 15:10:15,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:15,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:10:15,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201835568] [2020-10-12 15:10:15,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:10:15,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:15,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:10:15,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:10:15,554 INFO L87 Difference]: Start difference. First operand 18341 states and 20412 transitions. Second operand 5 states. [2020-10-12 15:10:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:24,074 INFO L93 Difference]: Finished difference Result 37417 states and 42126 transitions. [2020-10-12 15:10:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:10:24,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1053 [2020-10-12 15:10:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:24,147 INFO L225 Difference]: With dead ends: 37417 [2020-10-12 15:10:24,147 INFO L226 Difference]: Without dead ends: 19082 [2020-10-12 15:10:24,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:10:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19082 states. [2020-10-12 15:10:24,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19082 to 19056. [2020-10-12 15:10:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19056 states. [2020-10-12 15:10:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19056 states to 19056 states and 21372 transitions. [2020-10-12 15:10:24,532 INFO L78 Accepts]: Start accepts. Automaton has 19056 states and 21372 transitions. Word has length 1053 [2020-10-12 15:10:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:24,535 INFO L479 AbstractCegarLoop]: Abstraction has 19056 states and 21372 transitions. [2020-10-12 15:10:24,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:10:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 19056 states and 21372 transitions. [2020-10-12 15:10:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-10-12 15:10:24,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:24,602 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:24,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:10:24,602 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:24,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:24,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1237098412, now seen corresponding path program 1 times [2020-10-12 15:10:24,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:24,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775581547] [2020-10-12 15:10:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:27,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:29,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1154 [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:29,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 15:10:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:30,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:30,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 15:10:30,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:10:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:30,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:30,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:30,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:30,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:10:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:30,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:31,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 15:10:31,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:31,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:10:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 15:10:31,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:31,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 15:10:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:31,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:31,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 15:10:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 15:10:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 15:10:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 394 proven. 71 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2020-10-12 15:10:34,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775581547] [2020-10-12 15:10:34,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:34,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:34,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106909106] [2020-10-12 15:10:34,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:34,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:34,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:34,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:34,180 INFO L87 Difference]: Start difference. First operand 19056 states and 21372 transitions. Second operand 7 states. [2020-10-12 15:10:45,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:45,504 INFO L93 Difference]: Finished difference Result 46189 states and 52525 transitions. [2020-10-12 15:10:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:10:45,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1130 [2020-10-12 15:10:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:45,610 INFO L225 Difference]: With dead ends: 46189 [2020-10-12 15:10:45,610 INFO L226 Difference]: Without dead ends: 27139 [2020-10-12 15:10:45,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:10:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27139 states. [2020-10-12 15:10:46,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27139 to 26372. [2020-10-12 15:10:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26372 states. [2020-10-12 15:10:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26372 states to 26372 states and 29556 transitions. [2020-10-12 15:10:46,378 INFO L78 Accepts]: Start accepts. Automaton has 26372 states and 29556 transitions. Word has length 1130 [2020-10-12 15:10:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:46,380 INFO L479 AbstractCegarLoop]: Abstraction has 26372 states and 29556 transitions. [2020-10-12 15:10:46,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 26372 states and 29556 transitions. [2020-10-12 15:10:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2020-10-12 15:10:46,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:46,413 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:46,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:10:46,414 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:46,414 INFO L82 PathProgramCache]: Analyzing trace with hash -42100267, now seen corresponding path program 1 times [2020-10-12 15:10:46,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:46,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396788399] [2020-10-12 15:10:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:46,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:46,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:47,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:51,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:51,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1175 [2020-10-12 15:10:51,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:51,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 15:10:51,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:10:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:10:51,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:51,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:51,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:51,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:10:51,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:51,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:52,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:52,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:52,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 15:10:52,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:52,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:52,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:52,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:52,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:52,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:52,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:10:52,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:52,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:52,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:52,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:52,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:52,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-12 15:10:52,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:52,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:10:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:52,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:52,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:52,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:52,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:10:52,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:10:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:52,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:52,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:52,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 15:10:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:53,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-12 15:10:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:53,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 15:10:53,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:10:53,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-12 15:10:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:53,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2020-10-12 15:10:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:53,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:53,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 15:10:53,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:10:53,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 15:10:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 405 proven. 162 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2020-10-12 15:10:54,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396788399] [2020-10-12 15:10:54,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:54,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:54,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037502602] [2020-10-12 15:10:54,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:54,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:54,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:54,003 INFO L87 Difference]: Start difference. First operand 26372 states and 29556 transitions. Second operand 7 states. [2020-10-12 15:11:04,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:04,689 INFO L93 Difference]: Finished difference Result 62145 states and 70365 transitions. [2020-10-12 15:11:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:11:04,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1151 [2020-10-12 15:11:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:04,795 INFO L225 Difference]: With dead ends: 62145 [2020-10-12 15:11:04,796 INFO L226 Difference]: Without dead ends: 35779 [2020-10-12 15:11:04,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:11:04,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35779 states. [2020-10-12 15:11:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35779 to 35037. [2020-10-12 15:11:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35037 states. [2020-10-12 15:11:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35037 states to 35037 states and 39078 transitions. [2020-10-12 15:11:05,473 INFO L78 Accepts]: Start accepts. Automaton has 35037 states and 39078 transitions. Word has length 1151 [2020-10-12 15:11:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:05,478 INFO L479 AbstractCegarLoop]: Abstraction has 35037 states and 39078 transitions. [2020-10-12 15:11:05,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:11:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 35037 states and 39078 transitions. [2020-10-12 15:11:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2020-10-12 15:11:05,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:05,505 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:05,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:11:05,505 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:05,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:05,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1051285200, now seen corresponding path program 1 times [2020-10-12 15:11:05,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:05,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675010716] [2020-10-12 15:11:05,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:05,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:07,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:08,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:10,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1184 [2020-10-12 15:11:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:11:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 15:11:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1144 [2020-10-12 15:11:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 15:11:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:10,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:10,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:10,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:10,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:11:11,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:11:11,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:11:11,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:11:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:11:11,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:11:11,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:11:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:11,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-12 15:11:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:11,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-12 15:11:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-12 15:11:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1310 backedges. 172 proven. 5 refuted. 0 times theorem prover too weak. 1133 trivial. 0 not checked. [2020-10-12 15:11:12,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675010716] [2020-10-12 15:11:12,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:12,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:11:12,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585821744] [2020-10-12 15:11:12,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:11:12,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:12,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:11:12,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:11:12,311 INFO L87 Difference]: Start difference. First operand 35037 states and 39078 transitions. Second operand 5 states. [2020-10-12 15:11:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:22,834 INFO L93 Difference]: Finished difference Result 76476 states and 86113 transitions. [2020-10-12 15:11:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:11:22,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1160 [2020-10-12 15:11:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:22,951 INFO L225 Difference]: With dead ends: 76476 [2020-10-12 15:11:22,951 INFO L226 Difference]: Without dead ends: 41445 [2020-10-12 15:11:23,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:11:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41445 states. [2020-10-12 15:11:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41445 to 39994. [2020-10-12 15:11:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39994 states. [2020-10-12 15:11:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39994 states to 39994 states and 44534 transitions. [2020-10-12 15:11:23,632 INFO L78 Accepts]: Start accepts. Automaton has 39994 states and 44534 transitions. Word has length 1160 [2020-10-12 15:11:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:23,633 INFO L479 AbstractCegarLoop]: Abstraction has 39994 states and 44534 transitions. [2020-10-12 15:11:23,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:11:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 39994 states and 44534 transitions. [2020-10-12 15:11:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1267 [2020-10-12 15:11:23,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:23,667 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:23,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:11:23,667 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1472978788, now seen corresponding path program 1 times [2020-10-12 15:11:23,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:23,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462198476] [2020-10-12 15:11:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:24,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1290 [2020-10-12 15:11:29,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:11:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5330 [2020-10-12 15:11:29,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1250 [2020-10-12 15:11:29,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 15:11:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:29,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:11:29,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:29,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:11:29,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:29,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:29,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:11:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:29,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:29,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:29,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:11:29,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:11:29,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:30,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:11:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:30,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:30,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:30,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 15:11:30,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:30,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-12 15:11:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:30,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:30,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:30,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-12 15:11:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:30,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 172 proven. 5 refuted. 0 times theorem prover too weak. 1367 trivial. 0 not checked. [2020-10-12 15:11:30,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462198476] [2020-10-12 15:11:30,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:30,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:11:30,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698872944] [2020-10-12 15:11:30,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:11:30,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:30,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:11:30,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:11:30,883 INFO L87 Difference]: Start difference. First operand 39994 states and 44534 transitions. Second operand 5 states. [2020-10-12 15:11:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:41,412 INFO L93 Difference]: Finished difference Result 91306 states and 103046 transitions. [2020-10-12 15:11:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:11:41,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1266 [2020-10-12 15:11:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:41,576 INFO L225 Difference]: With dead ends: 91306 [2020-10-12 15:11:41,576 INFO L226 Difference]: Without dead ends: 47044 [2020-10-12 15:11:41,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:11:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47044 states. [2020-10-12 15:11:42,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47044 to 47028. [2020-10-12 15:11:42,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47028 states. [2020-10-12 15:11:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47028 states to 47028 states and 52634 transitions. [2020-10-12 15:11:42,428 INFO L78 Accepts]: Start accepts. Automaton has 47028 states and 52634 transitions. Word has length 1266 [2020-10-12 15:11:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:42,429 INFO L479 AbstractCegarLoop]: Abstraction has 47028 states and 52634 transitions. [2020-10-12 15:11:42,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:11:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand 47028 states and 52634 transitions. [2020-10-12 15:11:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1324 [2020-10-12 15:11:42,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:42,471 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:42,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 15:11:42,471 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:42,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1714557556, now seen corresponding path program 1 times [2020-10-12 15:11:42,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:42,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747220018] [2020-10-12 15:11:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:42,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:43,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:47,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:47,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1347 [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1170 [2020-10-12 15:11:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:11:47,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:47,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:47,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:47,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:48,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-12 15:11:48,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:48,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 15:11:48,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:11:48,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 15:11:48,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:11:48,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:11:48,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:11:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:11:48,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:11:48,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:48,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:11:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:48,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:48,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-12 15:11:48,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 15:11:48,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 15:11:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:49,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1156 [2020-10-12 15:11:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 15:11:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1742 backedges. 695 proven. 2 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2020-10-12 15:11:50,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747220018] [2020-10-12 15:11:50,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:50,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:11:50,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570594972] [2020-10-12 15:11:50,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:11:50,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:50,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:11:50,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:11:50,290 INFO L87 Difference]: Start difference. First operand 47028 states and 52634 transitions. Second operand 8 states. [2020-10-12 15:12:05,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:12:05,402 INFO L93 Difference]: Finished difference Result 93356 states and 104629 transitions. [2020-10-12 15:12:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:12:05,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1323 [2020-10-12 15:12:05,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:12:05,509 INFO L225 Difference]: With dead ends: 93356 [2020-10-12 15:12:05,510 INFO L226 Difference]: Without dead ends: 47044 [2020-10-12 15:12:05,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:12:05,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47044 states. [2020-10-12 15:12:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47044 to 47024. [2020-10-12 15:12:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47024 states. [2020-10-12 15:12:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47024 states to 47024 states and 51067 transitions. [2020-10-12 15:12:06,328 INFO L78 Accepts]: Start accepts. Automaton has 47024 states and 51067 transitions. Word has length 1323 [2020-10-12 15:12:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:12:06,330 INFO L479 AbstractCegarLoop]: Abstraction has 47024 states and 51067 transitions. [2020-10-12 15:12:06,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:12:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 47024 states and 51067 transitions. [2020-10-12 15:12:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1367 [2020-10-12 15:12:06,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:12:06,391 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:12:06,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 15:12:06,392 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:12:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:12:06,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1464505943, now seen corresponding path program 1 times [2020-10-12 15:12:06,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:12:06,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26783586] [2020-10-12 15:12:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY