/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:54:12,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:54:12,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:54:12,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:54:12,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:54:12,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:54:12,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:54:12,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:54:12,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:54:12,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:54:12,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:54:12,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:54:12,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:54:12,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:54:12,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:54:12,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:54:12,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:54:12,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:54:12,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:54:12,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:54:12,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:54:12,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:54:12,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:54:12,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:54:12,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:54:12,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:54:12,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:54:12,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:54:12,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:54:12,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:54:12,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:54:12,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:54:12,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:54:12,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:54:12,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:54:12,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:54:12,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:54:12,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:54:12,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:54:12,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:54:12,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:54:12,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 08:54:12,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:54:12,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:54:12,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:54:12,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:54:12,306 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:54:12,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:54:12,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:54:12,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:54:12,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:54:12,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:54:12,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:54:12,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:54:12,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:54:12,308 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:54:12,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:54:12,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:54:12,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:54:12,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:54:12,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:54:12,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:54:12,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:54:12,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:54:12,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:54:12,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:54:12,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:54:12,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:54:12,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:54:12,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:54:12,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:54:12,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:54:12,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:54:12,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:54:12,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:54:12,652 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:54:12,652 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:54:12,653 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50.c [2020-10-13 08:54:12,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/036a5e4af/3e85abc754bd4bc08c9a8fe91f9733b4/FLAG5fd52477a [2020-10-13 08:54:13,346 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:54:13,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label50.c [2020-10-13 08:54:13,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/036a5e4af/3e85abc754bd4bc08c9a8fe91f9733b4/FLAG5fd52477a [2020-10-13 08:54:13,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/036a5e4af/3e85abc754bd4bc08c9a8fe91f9733b4 [2020-10-13 08:54:13,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:54:13,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:54:13,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:54:13,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:54:13,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:54:13,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:13" (1/1) ... [2020-10-13 08:54:13,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8f1a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:13, skipping insertion in model container [2020-10-13 08:54:13,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:13" (1/1) ... [2020-10-13 08:54:13,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:54:13,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:54:14,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:54:14,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:54:14,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:54:14,473 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:54:14,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14 WrapperNode [2020-10-13 08:54:14,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:54:14,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:54:14,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:54:14,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:54:14,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... [2020-10-13 08:54:14,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:54:14,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:54:14,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:54:14,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:54:14,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:54:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:54:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:54:16,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:54:16,316 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:54:16,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:16 BoogieIcfgContainer [2020-10-13 08:54:16,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:54:16,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:54:16,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:54:16,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:54:16,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:54:13" (1/3) ... [2020-10-13 08:54:16,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54532018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:16, skipping insertion in model container [2020-10-13 08:54:16,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:14" (2/3) ... [2020-10-13 08:54:16,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54532018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:16, skipping insertion in model container [2020-10-13 08:54:16,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:16" (3/3) ... [2020-10-13 08:54:16,331 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2020-10-13 08:54:16,342 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:54:16,350 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:54:16,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:54:16,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:54:16,392 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:54:16,392 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:54:16,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:54:16,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:54:16,392 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:54:16,392 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:54:16,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:54:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:54:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 08:54:16,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:16,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:16,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1557712066, now seen corresponding path program 1 times [2020-10-13 08:54:16,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:16,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189999201] [2020-10-13 08:54:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:16,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:16,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 08:54:16,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:16,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-13 08:54:16,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:54:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:54:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 08:54:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:54:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:17,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:17,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:17,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:17,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:54:17,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:54:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:17,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189999201] [2020-10-13 08:54:17,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:54:17,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 08:54:17,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401785726] [2020-10-13 08:54:17,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:17,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:17,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:17,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:17,207 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-10-13 08:54:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:19,891 INFO L93 Difference]: Finished difference Result 886 states and 1613 transitions. [2020-10-13 08:54:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:54:19,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-13 08:54:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:19,915 INFO L225 Difference]: With dead ends: 886 [2020-10-13 08:54:19,915 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:54:19,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:19,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:54:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2020-10-13 08:54:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-10-13 08:54:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 906 transitions. [2020-10-13 08:54:20,042 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 906 transitions. Word has length 43 [2020-10-13 08:54:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:20,043 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 906 transitions. [2020-10-13 08:54:20,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 906 transitions. [2020-10-13 08:54:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 08:54:20,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:20,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:20,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:54:20,051 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1883069890, now seen corresponding path program 1 times [2020-10-13 08:54:20,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:20,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274973375] [2020-10-13 08:54:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:21,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:21,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 08:54:21,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-10-13 08:54:21,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 08:54:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 08:54:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:21,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:21,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:21,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:54:21,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:21,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:21,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:21,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:21,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:54:21,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:21,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 08:54:21,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:54:21,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:21,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274973375] [2020-10-13 08:54:21,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:21,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:21,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085383994] [2020-10-13 08:54:21,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:21,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:21,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:21,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:21,308 INFO L87 Difference]: Start difference. First operand 558 states and 906 transitions. Second operand 5 states. [2020-10-13 08:54:23,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:23,066 INFO L93 Difference]: Finished difference Result 1668 states and 2746 transitions. [2020-10-13 08:54:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:23,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-10-13 08:54:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:23,076 INFO L225 Difference]: With dead ends: 1668 [2020-10-13 08:54:23,076 INFO L226 Difference]: Without dead ends: 1116 [2020-10-13 08:54:23,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-13 08:54:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 746. [2020-10-13 08:54:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-13 08:54:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1152 transitions. [2020-10-13 08:54:23,127 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1152 transitions. Word has length 129 [2020-10-13 08:54:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:23,128 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 1152 transitions. [2020-10-13 08:54:23,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1152 transitions. [2020-10-13 08:54:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-13 08:54:23,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:23,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:23,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:54:23,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:23,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:23,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1079220531, now seen corresponding path program 1 times [2020-10-13 08:54:23,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:23,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272728150] [2020-10-13 08:54:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:23,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:23,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:23,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:24,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:24,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 08:54:24,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1191 [2020-10-13 08:54:24,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 08:54:24,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:54:24,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:24,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:24,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:24,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:24,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:54:24,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:24,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:24,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:24,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:24,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:54:24,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:24,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 08:54:24,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:54:24,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:24,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272728150] [2020-10-13 08:54:24,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:24,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:24,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021186509] [2020-10-13 08:54:24,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:24,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:24,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:24,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:24,696 INFO L87 Difference]: Start difference. First operand 746 states and 1152 transitions. Second operand 5 states. [2020-10-13 08:54:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:25,789 INFO L93 Difference]: Finished difference Result 1503 states and 2332 transitions. [2020-10-13 08:54:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:25,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-10-13 08:54:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:25,803 INFO L225 Difference]: With dead ends: 1503 [2020-10-13 08:54:25,803 INFO L226 Difference]: Without dead ends: 750 [2020-10-13 08:54:25,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-13 08:54:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 746. [2020-10-13 08:54:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-13 08:54:25,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1148 transitions. [2020-10-13 08:54:25,843 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1148 transitions. Word has length 138 [2020-10-13 08:54:25,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:25,843 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 1148 transitions. [2020-10-13 08:54:25,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1148 transitions. [2020-10-13 08:54:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 08:54:25,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:25,854 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:25,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:54:25,854 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:25,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:25,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1459537735, now seen corresponding path program 1 times [2020-10-13 08:54:25,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:25,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759150464] [2020-10-13 08:54:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:25,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:54:26,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:26,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-10-13 08:54:26,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 08:54:26,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 08:54:26,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:26,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:26,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:54:26,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:26,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:26,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:26,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:26,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:26,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:54:26,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:26,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 08:54:26,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:26,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:54:26,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:27,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759150464] [2020-10-13 08:54:27,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:27,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:27,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071101723] [2020-10-13 08:54:27,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:27,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:27,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:27,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:27,030 INFO L87 Difference]: Start difference. First operand 746 states and 1148 transitions. Second operand 5 states. [2020-10-13 08:54:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:28,132 INFO L93 Difference]: Finished difference Result 1517 states and 2337 transitions. [2020-10-13 08:54:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:28,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-13 08:54:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:28,141 INFO L225 Difference]: With dead ends: 1517 [2020-10-13 08:54:28,141 INFO L226 Difference]: Without dead ends: 750 [2020-10-13 08:54:28,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-13 08:54:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 746. [2020-10-13 08:54:28,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-13 08:54:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1145 transitions. [2020-10-13 08:54:28,180 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1145 transitions. Word has length 144 [2020-10-13 08:54:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:28,181 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 1145 transitions. [2020-10-13 08:54:28,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1145 transitions. [2020-10-13 08:54:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 08:54:28,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:28,184 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:28,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:54:28,185 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:28,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1055251967, now seen corresponding path program 1 times [2020-10-13 08:54:28,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:28,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471358237] [2020-10-13 08:54:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:28,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:28,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 08:54:28,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-10-13 08:54:28,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-13 08:54:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 08:54:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:28,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:28,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:28,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:28,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:28,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:28,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:28,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:28,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:28,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:29,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:54:29,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:54:29,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:54:29,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:29,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471358237] [2020-10-13 08:54:29,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:29,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:54:29,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546255542] [2020-10-13 08:54:29,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:54:29,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:29,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:54:29,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:54:29,075 INFO L87 Difference]: Start difference. First operand 746 states and 1145 transitions. Second operand 5 states. [2020-10-13 08:54:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:30,990 INFO L93 Difference]: Finished difference Result 2046 states and 3244 transitions. [2020-10-13 08:54:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:54:30,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-13 08:54:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:30,999 INFO L225 Difference]: With dead ends: 2046 [2020-10-13 08:54:31,000 INFO L226 Difference]: Without dead ends: 1306 [2020-10-13 08:54:31,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:54:31,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2020-10-13 08:54:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 930. [2020-10-13 08:54:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-13 08:54:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1439 transitions. [2020-10-13 08:54:31,054 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1439 transitions. Word has length 148 [2020-10-13 08:54:31,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:31,054 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1439 transitions. [2020-10-13 08:54:31,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:54:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1439 transitions. [2020-10-13 08:54:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 08:54:31,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:31,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:31,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:54:31,058 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:31,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:31,058 INFO L82 PathProgramCache]: Analyzing trace with hash 691510909, now seen corresponding path program 1 times [2020-10-13 08:54:31,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:31,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861424374] [2020-10-13 08:54:31,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:31,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:31,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 08:54:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-13 08:54:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:54:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:54:31,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:54:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:31,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:31,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:31,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:31,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:31,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:54:31,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:54:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:31,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:31,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:31,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:31,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:31,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:31,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-13 08:54:31,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:54:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:54:31,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861424374] [2020-10-13 08:54:31,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:54:31,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 08:54:31,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477780294] [2020-10-13 08:54:31,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:31,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:31,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:31,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:31,775 INFO L87 Difference]: Start difference. First operand 930 states and 1439 transitions. Second operand 7 states. [2020-10-13 08:54:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:33,674 INFO L93 Difference]: Finished difference Result 2494 states and 4115 transitions. [2020-10-13 08:54:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:54:33,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-10-13 08:54:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:33,691 INFO L225 Difference]: With dead ends: 2494 [2020-10-13 08:54:33,691 INFO L226 Difference]: Without dead ends: 1570 [2020-10-13 08:54:33,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:54:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2020-10-13 08:54:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1304. [2020-10-13 08:54:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-10-13 08:54:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1864 transitions. [2020-10-13 08:54:33,773 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1864 transitions. Word has length 162 [2020-10-13 08:54:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:33,773 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1864 transitions. [2020-10-13 08:54:33,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1864 transitions. [2020-10-13 08:54:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 08:54:33,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:33,780 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:33,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:54:33,780 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:33,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1180151066, now seen corresponding path program 1 times [2020-10-13 08:54:33,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:33,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484925378] [2020-10-13 08:54:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:33,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:33,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:33,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-13 08:54:35,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:35,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1984 [2020-10-13 08:54:35,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:54:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:54:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:35,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:35,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:35,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:35,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:35,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:54:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:35,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:54:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:36,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:36,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:36,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:36,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:36,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 08:54:36,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:36,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:54:36,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:54:36,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484925378] [2020-10-13 08:54:36,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:36,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:54:36,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334517006] [2020-10-13 08:54:36,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:36,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:36,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:36,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:36,434 INFO L87 Difference]: Start difference. First operand 1304 states and 1864 transitions. Second operand 7 states. [2020-10-13 08:54:37,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:37,921 INFO L93 Difference]: Finished difference Result 2667 states and 3862 transitions. [2020-10-13 08:54:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:37,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-10-13 08:54:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:37,935 INFO L225 Difference]: With dead ends: 2667 [2020-10-13 08:54:37,935 INFO L226 Difference]: Without dead ends: 1334 [2020-10-13 08:54:37,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:54:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2020-10-13 08:54:37,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1304. [2020-10-13 08:54:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-10-13 08:54:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1730 transitions. [2020-10-13 08:54:37,980 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1730 transitions. Word has length 231 [2020-10-13 08:54:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:37,981 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1730 transitions. [2020-10-13 08:54:37,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1730 transitions. [2020-10-13 08:54:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 08:54:37,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:37,986 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:37,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:54:37,986 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:37,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1333274466, now seen corresponding path program 1 times [2020-10-13 08:54:37,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:37,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476187893] [2020-10-13 08:54:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:38,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:41,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-10-13 08:54:41,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:41,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3379 [2020-10-13 08:54:41,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:41,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:54:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:54:41,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:54:41,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:41,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:41,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:41,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:41,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:41,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:54:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:41,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:41,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:54:41,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:41,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:54:41,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:54:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:54:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:42,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:42,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:42,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:54:42,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-13 08:54:42,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:42,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:54:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:54:42,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476187893] [2020-10-13 08:54:42,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:42,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:54:42,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841785099] [2020-10-13 08:54:42,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:42,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:42,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:42,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:42,146 INFO L87 Difference]: Start difference. First operand 1304 states and 1730 transitions. Second operand 7 states. [2020-10-13 08:54:44,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:44,020 INFO L93 Difference]: Finished difference Result 2814 states and 3812 transitions. [2020-10-13 08:54:44,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:44,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-13 08:54:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:44,027 INFO L225 Difference]: With dead ends: 2814 [2020-10-13 08:54:44,027 INFO L226 Difference]: Without dead ends: 1326 [2020-10-13 08:54:44,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:54:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-10-13 08:54:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2020-10-13 08:54:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1302 states. [2020-10-13 08:54:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1527 transitions. [2020-10-13 08:54:44,070 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1527 transitions. Word has length 235 [2020-10-13 08:54:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:44,070 INFO L479 AbstractCegarLoop]: Abstraction has 1302 states and 1527 transitions. [2020-10-13 08:54:44,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1527 transitions. [2020-10-13 08:54:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-13 08:54:44,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:44,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:54:44,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:54:44,077 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:44,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1543629782, now seen corresponding path program 1 times [2020-10-13 08:54:44,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:44,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859388633] [2020-10-13 08:54:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:44,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:48,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:48,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-13 08:54:48,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4628 [2020-10-13 08:54:48,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:54:48,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:54:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:48,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:48,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:48,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:48,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:48,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:54:48,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:48,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:48,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-13 08:54:49,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:49,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:49,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:54:49,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:54:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:54:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:49,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:49,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:49,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-13 08:54:49,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:49,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:54:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 08:54:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:54:49,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859388633] [2020-10-13 08:54:49,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:49,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:54:49,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080618184] [2020-10-13 08:54:49,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:54:49,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:49,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:54:49,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:54:49,814 INFO L87 Difference]: Start difference. First operand 1302 states and 1527 transitions. Second operand 7 states. [2020-10-13 08:54:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:51,453 INFO L93 Difference]: Finished difference Result 3026 states and 3708 transitions. [2020-10-13 08:54:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:54:51,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 341 [2020-10-13 08:54:51,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:51,466 INFO L225 Difference]: With dead ends: 3026 [2020-10-13 08:54:51,467 INFO L226 Difference]: Without dead ends: 1730 [2020-10-13 08:54:51,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:54:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2020-10-13 08:54:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1678. [2020-10-13 08:54:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2020-10-13 08:54:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 1946 transitions. [2020-10-13 08:54:51,523 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 1946 transitions. Word has length 341 [2020-10-13 08:54:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:51,523 INFO L479 AbstractCegarLoop]: Abstraction has 1678 states and 1946 transitions. [2020-10-13 08:54:51,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:54:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 1946 transitions. [2020-10-13 08:54:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-10-13 08:54:51,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:51,533 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:51,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:54:51,533 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:51,534 INFO L82 PathProgramCache]: Analyzing trace with hash 378918885, now seen corresponding path program 1 times [2020-10-13 08:54:51,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:51,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989425753] [2020-10-13 08:54:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:51,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:52,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:56,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-13 08:54:56,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:54:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4861 [2020-10-13 08:54:56,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-13 08:54:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:54:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:56,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:54:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:56,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:56,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:54:56,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:56,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:54:56,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:56,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:56,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:56,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:56,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:56,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:54:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:56,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:56,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:56,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:54:56,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:56,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:54:56,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:54:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:54:56,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:56,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:54:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:56,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:56,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:54:56,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:54:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:54:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:54:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:54:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:56,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:54:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:54:56,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:54:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:54:56,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:54:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 08:54:56,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:54:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:54:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:54:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:54:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:54:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 305 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-13 08:54:57,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989425753] [2020-10-13 08:54:57,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:54:57,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:54:57,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404866544] [2020-10-13 08:54:57,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:54:57,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:54:57,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:54:57,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:54:57,107 INFO L87 Difference]: Start difference. First operand 1678 states and 1946 transitions. Second operand 8 states. [2020-10-13 08:54:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:54:59,690 INFO L93 Difference]: Finished difference Result 4554 states and 5643 transitions. [2020-10-13 08:54:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 08:54:59,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 420 [2020-10-13 08:54:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:54:59,704 INFO L225 Difference]: With dead ends: 4554 [2020-10-13 08:54:59,704 INFO L226 Difference]: Without dead ends: 2694 [2020-10-13 08:54:59,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-13 08:54:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2020-10-13 08:54:59,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2624. [2020-10-13 08:54:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2624 states. [2020-10-13 08:54:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 3006 transitions. [2020-10-13 08:54:59,798 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 3006 transitions. Word has length 420 [2020-10-13 08:54:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:54:59,799 INFO L479 AbstractCegarLoop]: Abstraction has 2624 states and 3006 transitions. [2020-10-13 08:54:59,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:54:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 3006 transitions. [2020-10-13 08:54:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-10-13 08:54:59,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:54:59,813 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:54:59,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:54:59,813 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:54:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:54:59,814 INFO L82 PathProgramCache]: Analyzing trace with hash -169374866, now seen corresponding path program 1 times [2020-10-13 08:54:59,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:54:59,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291995117] [2020-10-13 08:54:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:54:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:54:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:00,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:04,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:04,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 441 [2020-10-13 08:55:04,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-13 08:55:04,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 277 [2020-10-13 08:55:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:55:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:05,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:05,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:55:05,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:55:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-10-13 08:55:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:05,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:05,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-13 08:55:05,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 312 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-13 08:55:05,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291995117] [2020-10-13 08:55:05,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:05,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:05,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806821523] [2020-10-13 08:55:05,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:05,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:05,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:05,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:05,627 INFO L87 Difference]: Start difference. First operand 2624 states and 3006 transitions. Second operand 7 states. [2020-10-13 08:55:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:07,172 INFO L93 Difference]: Finished difference Result 5638 states and 6492 transitions. [2020-10-13 08:55:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:55:07,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2020-10-13 08:55:07,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:07,184 INFO L225 Difference]: With dead ends: 5638 [2020-10-13 08:55:07,184 INFO L226 Difference]: Without dead ends: 2652 [2020-10-13 08:55:07,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:07,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2020-10-13 08:55:07,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2624. [2020-10-13 08:55:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2624 states. [2020-10-13 08:55:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2994 transitions. [2020-10-13 08:55:07,268 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2994 transitions. Word has length 427 [2020-10-13 08:55:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:07,269 INFO L479 AbstractCegarLoop]: Abstraction has 2624 states and 2994 transitions. [2020-10-13 08:55:07,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:07,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2994 transitions. [2020-10-13 08:55:07,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-10-13 08:55:07,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:07,280 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:07,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:55:07,281 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:07,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2117322882, now seen corresponding path program 1 times [2020-10-13 08:55:07,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:07,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481119119] [2020-10-13 08:55:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:07,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:07,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:07,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:10,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 447 [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4609 [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:11,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 283 [2020-10-13 08:55:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:55:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:12,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:12,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:12,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:12,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:12,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:12,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:55:12,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:55:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2020-10-13 08:55:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:12,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:12,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-13 08:55:12,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481119119] [2020-10-13 08:55:12,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:12,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:12,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871246883] [2020-10-13 08:55:12,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:12,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:12,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:12,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:12,449 INFO L87 Difference]: Start difference. First operand 2624 states and 2994 transitions. Second operand 7 states. [2020-10-13 08:55:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:13,484 INFO L93 Difference]: Finished difference Result 5283 states and 6093 transitions. [2020-10-13 08:55:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:55:13,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 433 [2020-10-13 08:55:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:13,494 INFO L225 Difference]: With dead ends: 5283 [2020-10-13 08:55:13,494 INFO L226 Difference]: Without dead ends: 2650 [2020-10-13 08:55:13,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-10-13 08:55:13,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2622. [2020-10-13 08:55:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2622 states. [2020-10-13 08:55:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 2981 transitions. [2020-10-13 08:55:13,561 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 2981 transitions. Word has length 433 [2020-10-13 08:55:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:13,562 INFO L479 AbstractCegarLoop]: Abstraction has 2622 states and 2981 transitions. [2020-10-13 08:55:13,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 2981 transitions. [2020-10-13 08:55:13,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-13 08:55:13,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:13,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:13,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:55:13,569 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:13,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1910499670, now seen corresponding path program 1 times [2020-10-13 08:55:13,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:13,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378575927] [2020-10-13 08:55:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:13,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:13,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-13 08:55:18,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:55:18,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4908 [2020-10-13 08:55:18,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:18,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-13 08:55:18,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:18,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:55:18,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:18,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:55:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:55:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 08:55:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 111 proven. 3 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-10-13 08:55:18,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378575927] [2020-10-13 08:55:18,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:18,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:18,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172571734] [2020-10-13 08:55:18,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:18,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:18,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:18,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:18,917 INFO L87 Difference]: Start difference. First operand 2622 states and 2981 transitions. Second operand 5 states. [2020-10-13 08:55:19,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:19,722 INFO L93 Difference]: Finished difference Result 5250 states and 6009 transitions. [2020-10-13 08:55:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:19,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 445 [2020-10-13 08:55:19,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:19,733 INFO L225 Difference]: With dead ends: 5250 [2020-10-13 08:55:19,733 INFO L226 Difference]: Without dead ends: 2626 [2020-10-13 08:55:19,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2020-10-13 08:55:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2620. [2020-10-13 08:55:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-10-13 08:55:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 2970 transitions. [2020-10-13 08:55:19,800 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 2970 transitions. Word has length 445 [2020-10-13 08:55:19,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:19,801 INFO L479 AbstractCegarLoop]: Abstraction has 2620 states and 2970 transitions. [2020-10-13 08:55:19,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:19,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 2970 transitions. [2020-10-13 08:55:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-10-13 08:55:19,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:19,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:19,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:55:19,809 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:19,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:19,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1678912170, now seen corresponding path program 1 times [2020-10-13 08:55:19,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:19,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984264991] [2020-10-13 08:55:19,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:19,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:23,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:24,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 459 [2020-10-13 08:55:24,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4783 [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:55:24,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:24,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:24,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:24,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:24,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:24,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:24,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:24,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:24,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:55:24,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:55:24,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:24,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-10-13 08:55:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:24,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:24,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:25,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 330 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-13 08:55:25,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984264991] [2020-10-13 08:55:25,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:25,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:25,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601492879] [2020-10-13 08:55:25,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:25,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:25,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:25,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:25,616 INFO L87 Difference]: Start difference. First operand 2620 states and 2970 transitions. Second operand 7 states. [2020-10-13 08:55:26,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:26,910 INFO L93 Difference]: Finished difference Result 5297 states and 6043 transitions. [2020-10-13 08:55:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:55:26,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2020-10-13 08:55:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:26,921 INFO L225 Difference]: With dead ends: 5297 [2020-10-13 08:55:26,921 INFO L226 Difference]: Without dead ends: 2657 [2020-10-13 08:55:26,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:55:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2020-10-13 08:55:26,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 2620. [2020-10-13 08:55:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-10-13 08:55:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 2966 transitions. [2020-10-13 08:55:26,983 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 2966 transitions. Word has length 445 [2020-10-13 08:55:26,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:26,984 INFO L479 AbstractCegarLoop]: Abstraction has 2620 states and 2966 transitions. [2020-10-13 08:55:26,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 2966 transitions. [2020-10-13 08:55:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2020-10-13 08:55:26,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:26,992 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 08:55:26,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:55:26,992 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash 625971502, now seen corresponding path program 1 times [2020-10-13 08:55:26,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:26,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697189472] [2020-10-13 08:55:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:27,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:30,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473 [2020-10-13 08:55:30,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3086 [2020-10-13 08:55:30,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 309 [2020-10-13 08:55:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:55:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:30,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:30,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:30,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:30,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:30,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:30,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:30,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:30,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:55:30,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:55:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-10-13 08:55:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:30,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:30,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 344 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-13 08:55:30,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697189472] [2020-10-13 08:55:30,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:30,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:30,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79413078] [2020-10-13 08:55:30,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:30,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:30,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:30,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:30,637 INFO L87 Difference]: Start difference. First operand 2620 states and 2966 transitions. Second operand 7 states. [2020-10-13 08:55:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:32,274 INFO L93 Difference]: Finished difference Result 5740 states and 6991 transitions. [2020-10-13 08:55:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:55:32,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 459 [2020-10-13 08:55:32,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:32,289 INFO L225 Difference]: With dead ends: 5740 [2020-10-13 08:55:32,289 INFO L226 Difference]: Without dead ends: 3126 [2020-10-13 08:55:32,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2020-10-13 08:55:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 2992. [2020-10-13 08:55:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2992 states. [2020-10-13 08:55:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 3358 transitions. [2020-10-13 08:55:32,372 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 3358 transitions. Word has length 459 [2020-10-13 08:55:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:32,373 INFO L479 AbstractCegarLoop]: Abstraction has 2992 states and 3358 transitions. [2020-10-13 08:55:32,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 3358 transitions. [2020-10-13 08:55:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2020-10-13 08:55:32,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:32,381 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:32,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:55:32,382 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:32,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1695102331, now seen corresponding path program 1 times [2020-10-13 08:55:32,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:32,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319723746] [2020-10-13 08:55:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:32,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:32,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:37,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 482 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 318 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-13 08:55:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:37,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:37,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:37,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:37,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:37,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:37,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:37,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:37,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:37,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:37,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:55:37,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:37,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-13 08:55:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:37,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:55:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:37,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 324 proven. 23 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:55:38,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319723746] [2020-10-13 08:55:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:38,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:55:38,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230005513] [2020-10-13 08:55:38,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:55:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:55:38,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:55:38,023 INFO L87 Difference]: Start difference. First operand 2992 states and 3358 transitions. Second operand 8 states. [2020-10-13 08:55:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:40,911 INFO L93 Difference]: Finished difference Result 6935 states and 7848 transitions. [2020-10-13 08:55:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 08:55:40,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 468 [2020-10-13 08:55:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:40,924 INFO L225 Difference]: With dead ends: 6935 [2020-10-13 08:55:40,925 INFO L226 Difference]: Without dead ends: 3928 [2020-10-13 08:55:40,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-13 08:55:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2020-10-13 08:55:41,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3546. [2020-10-13 08:55:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2020-10-13 08:55:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 3974 transitions. [2020-10-13 08:55:41,007 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 3974 transitions. Word has length 468 [2020-10-13 08:55:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:41,008 INFO L479 AbstractCegarLoop]: Abstraction has 3546 states and 3974 transitions. [2020-10-13 08:55:41,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:55:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 3974 transitions. [2020-10-13 08:55:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-10-13 08:55:41,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:41,017 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:41,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:55:41,017 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:41,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1346148513, now seen corresponding path program 1 times [2020-10-13 08:55:41,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:41,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639265160] [2020-10-13 08:55:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:41,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 484 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:55:46,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:46,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:55:46,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 08:55:46,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:46,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:55:46,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-13 08:55:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:46,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 345 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-13 08:55:46,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639265160] [2020-10-13 08:55:46,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:46,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:46,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36332485] [2020-10-13 08:55:46,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:46,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:46,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:46,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:46,709 INFO L87 Difference]: Start difference. First operand 3546 states and 3974 transitions. Second operand 7 states. [2020-10-13 08:55:47,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:47,807 INFO L93 Difference]: Finished difference Result 7128 states and 8042 transitions. [2020-10-13 08:55:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:55:47,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 470 [2020-10-13 08:55:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:47,824 INFO L225 Difference]: With dead ends: 7128 [2020-10-13 08:55:47,825 INFO L226 Difference]: Without dead ends: 3574 [2020-10-13 08:55:47,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:47,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2020-10-13 08:55:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3544. [2020-10-13 08:55:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3544 states. [2020-10-13 08:55:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 3957 transitions. [2020-10-13 08:55:47,934 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 3957 transitions. Word has length 470 [2020-10-13 08:55:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:47,935 INFO L479 AbstractCegarLoop]: Abstraction has 3544 states and 3957 transitions. [2020-10-13 08:55:47,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 3957 transitions. [2020-10-13 08:55:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2020-10-13 08:55:47,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:47,949 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:55:47,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:55:47,950 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:47,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:47,951 INFO L82 PathProgramCache]: Analyzing trace with hash 273025154, now seen corresponding path program 1 times [2020-10-13 08:55:47,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:47,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898121953] [2020-10-13 08:55:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:48,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:49,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 519 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 355 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:55:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:53,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:53,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:55:53,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:55:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:55:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:55:53,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:55:53,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:53,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-13 08:55:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:55:53,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:55:53,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:55:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:53,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-13 08:55:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:53,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:53,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:55:53,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-13 08:55:53,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:55:53,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 426 proven. 2 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-13 08:55:54,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898121953] [2020-10-13 08:55:54,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:54,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:55:54,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531733738] [2020-10-13 08:55:54,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:55:54,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:54,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:55:54,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:55:54,088 INFO L87 Difference]: Start difference. First operand 3544 states and 3957 transitions. Second operand 7 states. [2020-10-13 08:55:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:55,074 INFO L93 Difference]: Finished difference Result 7130 states and 8022 transitions. [2020-10-13 08:55:55,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:55:55,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 503 [2020-10-13 08:55:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:55,086 INFO L225 Difference]: With dead ends: 7130 [2020-10-13 08:55:55,086 INFO L226 Difference]: Without dead ends: 3580 [2020-10-13 08:55:55,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:55:55,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2020-10-13 08:55:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3546. [2020-10-13 08:55:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3546 states. [2020-10-13 08:55:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 3948 transitions. [2020-10-13 08:55:55,169 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 3948 transitions. Word has length 503 [2020-10-13 08:55:55,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:55,170 INFO L479 AbstractCegarLoop]: Abstraction has 3546 states and 3948 transitions. [2020-10-13 08:55:55,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:55:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 3948 transitions. [2020-10-13 08:55:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-10-13 08:55:55,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:55,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:55,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:55:55,183 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash -23479003, now seen corresponding path program 1 times [2020-10-13 08:55:55,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:55,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091364346] [2020-10-13 08:55:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:55,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:55,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 530 [2020-10-13 08:56:00,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:00,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 08:56:00,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-13 08:56:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:56:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:00,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:00,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:00,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:00,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:00,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:00,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:56:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:56:00,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:56:00,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:56:00,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:00,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-13 08:56:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:00,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:00,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 345 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-10-13 08:56:01,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091364346] [2020-10-13 08:56:01,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:01,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:56:01,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310090914] [2020-10-13 08:56:01,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:56:01,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:01,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:56:01,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:01,179 INFO L87 Difference]: Start difference. First operand 3546 states and 3948 transitions. Second operand 6 states. [2020-10-13 08:56:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:02,249 INFO L93 Difference]: Finished difference Result 7135 states and 7994 transitions. [2020-10-13 08:56:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:56:02,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 516 [2020-10-13 08:56:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:02,258 INFO L225 Difference]: With dead ends: 7135 [2020-10-13 08:56:02,258 INFO L226 Difference]: Without dead ends: 3571 [2020-10-13 08:56:02,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:56:02,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2020-10-13 08:56:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3544. [2020-10-13 08:56:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3544 states. [2020-10-13 08:56:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 3939 transitions. [2020-10-13 08:56:02,338 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 3939 transitions. Word has length 516 [2020-10-13 08:56:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:02,339 INFO L479 AbstractCegarLoop]: Abstraction has 3544 states and 3939 transitions. [2020-10-13 08:56:02,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:56:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 3939 transitions. [2020-10-13 08:56:02,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2020-10-13 08:56:02,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:02,351 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:02,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:56:02,351 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash 214408366, now seen corresponding path program 1 times [2020-10-13 08:56:02,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:02,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137306420] [2020-10-13 08:56:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:02,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:03,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 537 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 373 [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:56:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:56:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:56:07,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-13 08:56:07,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2020-10-13 08:56:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 345 proven. 2 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-10-13 08:56:08,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137306420] [2020-10-13 08:56:08,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:08,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:08,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193057469] [2020-10-13 08:56:08,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:08,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:08,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:08,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:08,095 INFO L87 Difference]: Start difference. First operand 3544 states and 3939 transitions. Second operand 8 states. [2020-10-13 08:56:10,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:10,277 INFO L93 Difference]: Finished difference Result 7818 states and 8746 transitions. [2020-10-13 08:56:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:10,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 523 [2020-10-13 08:56:10,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:10,288 INFO L225 Difference]: With dead ends: 7818 [2020-10-13 08:56:10,289 INFO L226 Difference]: Without dead ends: 4280 [2020-10-13 08:56:10,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2020-10-13 08:56:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4272. [2020-10-13 08:56:10,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4272 states. [2020-10-13 08:56:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 4702 transitions. [2020-10-13 08:56:10,379 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 4702 transitions. Word has length 523 [2020-10-13 08:56:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:10,379 INFO L479 AbstractCegarLoop]: Abstraction has 4272 states and 4702 transitions. [2020-10-13 08:56:10,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 4702 transitions. [2020-10-13 08:56:10,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-10-13 08:56:10,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:10,395 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:56:10,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:56:10,396 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:10,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:10,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1912197770, now seen corresponding path program 1 times [2020-10-13 08:56:10,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:10,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974663316] [2020-10-13 08:56:10,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 719 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 555 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:56:15,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:15,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:56:15,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-13 08:56:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:56:15,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2020-10-13 08:56:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:15,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:15,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 614 proven. 2 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2020-10-13 08:56:16,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974663316] [2020-10-13 08:56:16,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:16,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:16,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916230558] [2020-10-13 08:56:16,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:16,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:16,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:16,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:16,494 INFO L87 Difference]: Start difference. First operand 4272 states and 4702 transitions. Second operand 7 states. [2020-10-13 08:56:17,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:17,594 INFO L93 Difference]: Finished difference Result 8598 states and 9550 transitions. [2020-10-13 08:56:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:56:17,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 701 [2020-10-13 08:56:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:17,612 INFO L225 Difference]: With dead ends: 8598 [2020-10-13 08:56:17,612 INFO L226 Difference]: Without dead ends: 4314 [2020-10-13 08:56:17,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:17,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4314 states. [2020-10-13 08:56:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4314 to 4270. [2020-10-13 08:56:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4270 states. [2020-10-13 08:56:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4270 states to 4270 states and 4693 transitions. [2020-10-13 08:56:17,703 INFO L78 Accepts]: Start accepts. Automaton has 4270 states and 4693 transitions. Word has length 701 [2020-10-13 08:56:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:17,704 INFO L479 AbstractCegarLoop]: Abstraction has 4270 states and 4693 transitions. [2020-10-13 08:56:17,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 4270 states and 4693 transitions. [2020-10-13 08:56:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2020-10-13 08:56:17,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:17,718 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 08:56:17,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:56:17,719 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:17,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1098127803, now seen corresponding path program 1 times [2020-10-13 08:56:17,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:17,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575663031] [2020-10-13 08:56:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:17,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:17,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:22,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 748 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 584 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:56:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:22,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:22,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:22,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:22,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:22,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:22,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:22,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:22,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:23,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:23,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:56:23,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-13 08:56:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 619 proven. 2 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2020-10-13 08:56:23,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575663031] [2020-10-13 08:56:23,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:23,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:56:23,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822847395] [2020-10-13 08:56:23,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:56:23,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:23,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:56:23,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:56:23,924 INFO L87 Difference]: Start difference. First operand 4270 states and 4693 transitions. Second operand 6 states. [2020-10-13 08:56:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:24,850 INFO L93 Difference]: Finished difference Result 8373 states and 9199 transitions. [2020-10-13 08:56:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:56:24,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 730 [2020-10-13 08:56:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:24,863 INFO L225 Difference]: With dead ends: 8373 [2020-10-13 08:56:24,863 INFO L226 Difference]: Without dead ends: 4099 [2020-10-13 08:56:24,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:56:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4099 states. [2020-10-13 08:56:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4099 to 4086. [2020-10-13 08:56:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4086 states. [2020-10-13 08:56:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 4431 transitions. [2020-10-13 08:56:24,943 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 4431 transitions. Word has length 730 [2020-10-13 08:56:24,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:24,943 INFO L479 AbstractCegarLoop]: Abstraction has 4086 states and 4431 transitions. [2020-10-13 08:56:24,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:56:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 4431 transitions. [2020-10-13 08:56:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2020-10-13 08:56:24,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:24,958 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:24,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:56:24,959 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:24,959 INFO L82 PathProgramCache]: Analyzing trace with hash -367388046, now seen corresponding path program 1 times [2020-10-13 08:56:24,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:24,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751576014] [2020-10-13 08:56:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:25,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:25,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 769 [2020-10-13 08:56:30,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:30,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-13 08:56:30,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:56:30,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 431 [2020-10-13 08:56:30,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:56:30,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:30,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:30,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:30,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:30,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:30,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:56:30,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 08:56:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:30,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:30,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:56:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:31,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-13 08:56:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:31,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:31,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:31,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:56:31,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:56:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1343 backedges. 603 proven. 118 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2020-10-13 08:56:31,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751576014] [2020-10-13 08:56:31,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:31,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:31,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303366624] [2020-10-13 08:56:31,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:31,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:31,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:31,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:31,379 INFO L87 Difference]: Start difference. First operand 4086 states and 4431 transitions. Second operand 8 states. [2020-10-13 08:56:33,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:33,213 INFO L93 Difference]: Finished difference Result 8454 states and 9384 transitions. [2020-10-13 08:56:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:56:33,213 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 751 [2020-10-13 08:56:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:33,222 INFO L225 Difference]: With dead ends: 8454 [2020-10-13 08:56:33,222 INFO L226 Difference]: Without dead ends: 4374 [2020-10-13 08:56:33,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2020-10-13 08:56:33,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 4268. [2020-10-13 08:56:33,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4268 states. [2020-10-13 08:56:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 4610 transitions. [2020-10-13 08:56:33,319 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 4610 transitions. Word has length 751 [2020-10-13 08:56:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:33,319 INFO L479 AbstractCegarLoop]: Abstraction has 4268 states and 4610 transitions. [2020-10-13 08:56:33,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 4610 transitions. [2020-10-13 08:56:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-10-13 08:56:33,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:33,338 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:33,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:56:33,339 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:33,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:33,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1410318098, now seen corresponding path program 1 times [2020-10-13 08:56:33,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:33,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217910831] [2020-10-13 08:56:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:33,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:33,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 817 [2020-10-13 08:56:38,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:56:38,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 08:56:38,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 08:56:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:38,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:38,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:38,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:56:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-13 08:56:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:38,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-13 08:56:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:38,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 645 [2020-10-13 08:56:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:38,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:38,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:38,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:38,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:56:38,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:56:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 180 proven. 544 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2020-10-13 08:56:39,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217910831] [2020-10-13 08:56:39,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:39,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:39,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323521865] [2020-10-13 08:56:39,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:39,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:39,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:39,257 INFO L87 Difference]: Start difference. First operand 4268 states and 4610 transitions. Second operand 7 states. [2020-10-13 08:56:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:40,699 INFO L93 Difference]: Finished difference Result 9450 states and 10244 transitions. [2020-10-13 08:56:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:40,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 799 [2020-10-13 08:56:40,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:40,710 INFO L225 Difference]: With dead ends: 9450 [2020-10-13 08:56:40,710 INFO L226 Difference]: Without dead ends: 5188 [2020-10-13 08:56:40,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2020-10-13 08:56:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 4818. [2020-10-13 08:56:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4818 states. [2020-10-13 08:56:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 5184 transitions. [2020-10-13 08:56:40,803 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 5184 transitions. Word has length 799 [2020-10-13 08:56:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:40,804 INFO L479 AbstractCegarLoop]: Abstraction has 4818 states and 5184 transitions. [2020-10-13 08:56:40,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 5184 transitions. [2020-10-13 08:56:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2020-10-13 08:56:40,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:40,822 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:40,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:56:40,822 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:40,823 INFO L82 PathProgramCache]: Analyzing trace with hash -800434359, now seen corresponding path program 1 times [2020-10-13 08:56:40,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:40,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633167297] [2020-10-13 08:56:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:40,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:41,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:41,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:45,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 964 [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 800 [2020-10-13 08:56:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:56:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:56:46,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:46,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 08:56:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:46,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:56:46,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:46,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-13 08:56:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:46,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:46,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:46,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:46,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-13 08:56:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:46,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2020-10-13 08:56:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:56:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:46,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 790 [2020-10-13 08:56:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:46,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:46,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:46,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:46,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:46,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-13 08:56:46,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:46,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:56:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2193 backedges. 806 proven. 2 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2020-10-13 08:56:48,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633167297] [2020-10-13 08:56:48,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:48,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:48,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219899240] [2020-10-13 08:56:48,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:48,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:48,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:48,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:48,021 INFO L87 Difference]: Start difference. First operand 4818 states and 5184 transitions. Second operand 7 states. [2020-10-13 08:56:49,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:49,315 INFO L93 Difference]: Finished difference Result 9507 states and 10274 transitions. [2020-10-13 08:56:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:56:49,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 944 [2020-10-13 08:56:49,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:49,324 INFO L225 Difference]: With dead ends: 9507 [2020-10-13 08:56:49,325 INFO L226 Difference]: Without dead ends: 4847 [2020-10-13 08:56:49,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2020-10-13 08:56:49,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4818. [2020-10-13 08:56:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4818 states. [2020-10-13 08:56:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 5180 transitions. [2020-10-13 08:56:49,406 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 5180 transitions. Word has length 944 [2020-10-13 08:56:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:49,407 INFO L479 AbstractCegarLoop]: Abstraction has 4818 states and 5180 transitions. [2020-10-13 08:56:49,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 5180 transitions. [2020-10-13 08:56:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-10-13 08:56:49,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:49,425 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:49,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:56:49,426 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:49,426 INFO L82 PathProgramCache]: Analyzing trace with hash 288004510, now seen corresponding path program 1 times [2020-10-13 08:56:49,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:49,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059050978] [2020-10-13 08:56:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:54,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:54,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 989 [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:54,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:56:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:54,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:54,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:54,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:54,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:54,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:54,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:54,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:54,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:54,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:54,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 08:56:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 08:56:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:54,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:54,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:54,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:54,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:56:54,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-13 08:56:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:54,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-13 08:56:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:54,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:54,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-13 08:56:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 08:56:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:55,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2020-10-13 08:56:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:55,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:55,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-13 08:56:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:55,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:55,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:56:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:56:55,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-13 08:56:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 216 proven. 520 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2020-10-13 08:56:55,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059050978] [2020-10-13 08:56:55,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:55,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:55,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791648690] [2020-10-13 08:56:55,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:55,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:55,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:55,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:55,542 INFO L87 Difference]: Start difference. First operand 4818 states and 5180 transitions. Second operand 8 states. [2020-10-13 08:56:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:57,030 INFO L93 Difference]: Finished difference Result 9452 states and 10171 transitions. [2020-10-13 08:56:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:56:57,030 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 969 [2020-10-13 08:56:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:57,036 INFO L225 Difference]: With dead ends: 9452 [2020-10-13 08:56:57,036 INFO L226 Difference]: Without dead ends: 4822 [2020-10-13 08:56:57,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:57,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2020-10-13 08:56:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 4818. [2020-10-13 08:56:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4818 states. [2020-10-13 08:56:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 5087 transitions. [2020-10-13 08:56:57,106 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 5087 transitions. Word has length 969 [2020-10-13 08:56:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:57,107 INFO L479 AbstractCegarLoop]: Abstraction has 4818 states and 5087 transitions. [2020-10-13 08:56:57,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 5087 transitions. [2020-10-13 08:56:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2020-10-13 08:56:57,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:57,131 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:57,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:56:57,131 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:57,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1441179214, now seen corresponding path program 1 times [2020-10-13 08:56:57,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:57,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527974757] [2020-10-13 08:56:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1119 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 955 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:57:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:02,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:02,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:02,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:02,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:57:02,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-13 08:57:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-13 08:57:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:02,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 765 [2020-10-13 08:57:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:57:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-13 08:57:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:02,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 08:57:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 954 proven. 2 refuted. 0 times theorem prover too weak. 2042 trivial. 0 not checked. [2020-10-13 08:57:03,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527974757] [2020-10-13 08:57:03,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:03,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:03,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798497175] [2020-10-13 08:57:03,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:03,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:03,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:03,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:03,343 INFO L87 Difference]: Start difference. First operand 4818 states and 5087 transitions. Second operand 7 states. [2020-10-13 08:57:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:04,448 INFO L93 Difference]: Finished difference Result 9141 states and 9657 transitions. [2020-10-13 08:57:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:57:04,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1097 [2020-10-13 08:57:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:04,450 INFO L225 Difference]: With dead ends: 9141 [2020-10-13 08:57:04,450 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:57:04,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:57:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:57:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:57:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:57:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:57:04,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1097 [2020-10-13 08:57:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:04,457 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:57:04,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:57:04,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:57:04,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:57:04,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:57:07,953 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 628 DAG size of output: 538 [2020-10-13 08:57:09,239 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 624 DAG size of output: 534 [2020-10-13 08:57:11,857 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 403 DAG size of output: 164 [2020-10-13 08:57:15,769 WARN L193 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 524 DAG size of output: 105 [2020-10-13 08:57:19,620 WARN L193 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 520 DAG size of output: 105 [2020-10-13 08:57:19,625 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:57:19,625 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,626 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:57:19,627 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,628 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:57:19,629 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:57:19,630 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:57:19,631 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,632 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,633 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:57:19,634 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:57:19,635 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:57:19,635 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:57:19,635 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:57:19,635 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse2 (= 7 |old(~a15~0)|)) (.cse7 (= 6 |old(~a21~0)|)) (.cse15 (= ~a24~0 |old(~a24~0)|)) (.cse28 (= ~a21~0 |old(~a21~0)|)) (.cse17 (= ~a15~0 |old(~a15~0)|)) (.cse18 (= 7 ~a15~0)) (.cse19 (= ~a24~0 1)) (.cse16 (= ~a12~0 |old(~a12~0)|))) (let ((.cse12 (not (<= |old(~a15~0)| 7))) (.cse14 (not (<= 7 |old(~a15~0)|))) (.cse8 (and .cse18 (= ~a21~0 6) .cse19 .cse16)) (.cse6 (not (<= 81 |old(~a12~0)|))) (.cse1 (not (<= |old(~a21~0)| 7))) (.cse13 (not (= 10 |old(~a21~0)|))) (.cse25 (= 5 ~a15~0)) (.cse27 (not (= 5 |old(~a15~0)|))) (.cse5 (and .cse15 .cse28 .cse16 .cse17)) (.cse10 (not .cse7)) (.cse3 (not (<= 1 |old(~a24~0)|))) (.cse4 (not (<= |old(~a24~0)| 1))) (.cse20 (not (<= 6 |old(~a21~0)|))) (.cse0 (and .cse15 .cse28 .cse16 (not .cse18) .cse17)) (.cse21 (not (<= |old(~a21~0)| 6))) (.cse22 (not (<= 5 |old(~a15~0)|))) (.cse23 (not (<= |old(~a15~0)| 5))) (.cse9 (not (= |old(~a24~0)| 1))) (.cse24 (not (= 9 |old(~a21~0)|))) (.cse26 (= ~a21~0 9)) (.cse11 (not .cse2))) (and (or .cse0 .cse1 (not (<= (+ |old(~a12~0)| 49) 0)) .cse2) (or .cse3 .cse4 (not (<= |old(~a15~0)| 6)) (not (<= 6 |old(~a15~0)|)) .cse0 (not (<= 12849 |old(~a12~0)|))) (or (not (<= 8 |old(~a21~0)|)) .cse5 (= |old(~a15~0)| |old(~a21~0)|) (not (<= |old(~a12~0)| 11))) (or .cse6 .cse0 .cse2 .cse7) (or (not (<= |old(~a12~0)| 95442)) (not (<= 95374 |old(~a12~0)|)) .cse0 .cse2) (or .cse8 .cse9 .cse10 .cse11 (not (<= (+ |old(~a12~0)| 2797) 0))) (or .cse12 .cse3 .cse4 .cse13 .cse14 (and .cse15 (<= 10 ~a21~0) .cse16 (<= ~a21~0 10) .cse17)) (or .cse5 (not (= 8 |old(~a15~0)|))) (or (and .cse15 (= ~a21~0 8) .cse16 .cse17) (not (= 8 |old(~a21~0)|))) (or (not (= 7 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 460226) 0)) .cse9 (and .cse18 .cse19 .cse16 (= 7 ~a21~0)) .cse11) (or .cse12 .cse3 .cse4 (not (<= |old(~a12~0)| 10)) (not (<= 0 (+ |old(~a12~0)| 41))) .cse20 .cse21 .cse14 (and .cse15 (<= 6 ~a21~0) .cse16 (<= ~a21~0 6) .cse17)) (or .cse8 .cse9 .cse6 .cse10 .cse11) (or .cse3 .cse4 (not (<= |old(~a12~0)| 69)) (not (<= 7 |old(~a21~0)|)) (not (<= 58 |old(~a12~0)|)) .cse0 .cse1 .cse22 .cse23) (or (not (<= |old(~a12~0)| 78)) .cse9 .cse24 (and .cse25 .cse19 .cse26 .cse16) .cse27) (or .cse13 .cse9 (and .cse25 .cse28 .cse19 .cse16) .cse27) (or (not (< 80 |old(~a12~0)|)) .cse5 (not (<= 9 |old(~a21~0)|))) (or (not (<= |old(~a12~0)| 46)) (not (= 6 |old(~a15~0)|)) .cse9 (not (<= 13 |old(~a12~0)|)) .cse0 .cse10) (or .cse3 .cse4 .cse20 .cse0 .cse21 .cse22 .cse23) (or .cse9 .cse24 (and .cse18 .cse19 .cse26 .cse16) .cse11)))) [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:57:19,636 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:57:19,637 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,638 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,639 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,640 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:57:19,641 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 115) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,642 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,643 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:57:19,644 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:57:19,645 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,646 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:57:19,647 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:57:19,648 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:57:19,649 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:57:19,650 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (not (= ~a21~0 6))) [2020-10-13 08:57:19,650 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:57:19,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:57:19,650 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (<= |old(~a21~0)| 7)) (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (= 6 |old(~a21~0)|)) [2020-10-13 08:57:19,650 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:57:19,651 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse10 (= 7 ~a15~0))) (let ((.cse8 (= ~a21~0 9)) (.cse12 (not .cse10)) (.cse14 (<= 81 ~a12~0)) (.cse13 (<= 8 ~a21~0)) (.cse9 (= ~a21~0 6)) (.cse3 (<= 6 ~a21~0)) (.cse4 (<= ~a21~0 6)) (.cse11 (<= ~a21~0 7)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 5 ~a15~0)) (.cse15 (<= ~a15~0 7)) (.cse1 (<= ~a24~0 1)) (.cse16 (<= 7 ~a15~0)) (.cse2 (<= 1 ~a24~0)) (.cse6 (= 5 ~a15~0)) (.cse7 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 (<= ~a12~0 78)) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse9 .cse7 (= ~a15~0 6)) (and .cse7 (<= (+ ~a12~0 460226) 0) (= 7 ~a21~0)) (and .cse10 .cse7 .cse8) (and .cse11 (<= (+ ~a12~0 49) 0) .cse12) (not (= 8 |old(~a15~0)|)) (and (< 80 ~a12~0) .cse13) (and .cse12 (<= ~a12~0 95442) (<= 95374 ~a12~0)) (not (<= |old(~a21~0)| 7)) (and .cse14 (not .cse9) .cse12) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse10 .cse14 .cse9 .cse7) (= ~a15~0 |old(~a15~0)|) (and .cse13 (<= ~a12~0 11) (not (= ~a21~0 ~a15~0))) (and .cse9 .cse7 (<= (+ ~a12~0 2797) 0)) (and (<= 0 (+ ~a12~0 41)) .cse15 (<= ~a12~0 10) .cse1 .cse16 .cse2 .cse3 .cse4) (= ~a21~0 8) (and (<= 6 ~a15~0) .cse1 (<= 12849 ~a12~0) .cse2 (<= ~a15~0 6)) (and .cse11 (<= ~a12~0 69) (<= 7 ~a21~0) .cse0 .cse1 (<= 58 ~a12~0) .cse2 .cse5) (and .cse15 .cse1 .cse16 .cse2 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse6 (= ~a21~0 10) .cse7) (= 6 |old(~a21~0)|)))) [2020-10-13 08:57:19,651 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:57:19,651 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:57:19,651 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse10 (= 7 ~a15~0))) (let ((.cse8 (= ~a21~0 9)) (.cse12 (not .cse10)) (.cse14 (<= 81 ~a12~0)) (.cse13 (<= 8 ~a21~0)) (.cse9 (= ~a21~0 6)) (.cse3 (<= 6 ~a21~0)) (.cse4 (<= ~a21~0 6)) (.cse11 (<= ~a21~0 7)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 5 ~a15~0)) (.cse15 (<= ~a15~0 7)) (.cse1 (<= ~a24~0 1)) (.cse16 (<= 7 ~a15~0)) (.cse2 (<= 1 ~a24~0)) (.cse6 (= 5 ~a15~0)) (.cse7 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 (<= ~a12~0 78)) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse9 .cse7 (= ~a15~0 6)) (and .cse7 (<= (+ ~a12~0 460226) 0) (= 7 ~a21~0)) (and .cse10 .cse7 .cse8) (and .cse11 (<= (+ ~a12~0 49) 0) .cse12) (not (= 8 |old(~a15~0)|)) (and (< 80 ~a12~0) .cse13) (and .cse12 (<= ~a12~0 95442) (<= 95374 ~a12~0)) (not (<= |old(~a21~0)| 7)) (and .cse14 (not .cse9) .cse12) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse10 .cse14 .cse9 .cse7) (= ~a15~0 |old(~a15~0)|) (and .cse13 (<= ~a12~0 11) (not (= ~a21~0 ~a15~0))) (and .cse9 .cse7 (<= (+ ~a12~0 2797) 0)) (and (<= 0 (+ ~a12~0 41)) .cse15 (<= ~a12~0 10) .cse1 .cse16 .cse2 .cse3 .cse4) (= ~a21~0 8) (and (<= 6 ~a15~0) .cse1 (<= 12849 ~a12~0) .cse2 (<= ~a15~0 6)) (and .cse11 (<= ~a12~0 69) (<= 7 ~a21~0) .cse0 .cse1 (<= 58 ~a12~0) .cse2 .cse5) (and .cse15 .cse1 .cse16 .cse2 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse6 (= ~a21~0 10) .cse7) (= 6 |old(~a21~0)|)))) [2020-10-13 08:57:19,651 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:57:19,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:57:19 BoogieIcfgContainer [2020-10-13 08:57:19,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:57:19,691 INFO L168 Benchmark]: Toolchain (without parser) took 186127.65 ms. Allocated memory was 140.5 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 100.9 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,692 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.40 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 168.8 MB in the end (delta: -68.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,693 INFO L168 Benchmark]: Boogie Preprocessor took 176.78 ms. Allocated memory is still 206.6 MB. Free memory was 168.8 MB in the beginning and 162.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,694 INFO L168 Benchmark]: RCFGBuilder took 1669.06 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 155.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,695 INFO L168 Benchmark]: TraceAbstraction took 183365.52 ms. Allocated memory was 238.6 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 153.9 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-13 08:57:19,702 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 911.40 ms. Allocated memory was 140.5 MB in the beginning and 206.6 MB in the end (delta: 66.1 MB). Free memory was 100.5 MB in the beginning and 168.8 MB in the end (delta: -68.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.78 ms. Allocated memory is still 206.6 MB. Free memory was 168.8 MB in the beginning and 162.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1669.06 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 162.7 MB in the beginning and 155.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 183365.52 ms. Allocated memory was 238.6 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 153.9 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((a15 <= 5 && a24 <= 1) && 1 <= a24) && 6 <= a21) && a21 <= 6) && 5 <= a15) || (((5 == a15 && a24 == 1) && a21 == 9) && a12 <= 78)) || ((((a12 <= 46 && 13 <= a12) && a21 == 6) && a24 == 1) && a15 == 6)) || ((a24 == 1 && a12 + 460226 <= 0) && 7 == a21)) || ((7 == a15 && a24 == 1) && a21 == 9)) || ((a21 <= 7 && a12 + 49 <= 0) && !(7 == a15))) || !(8 == \old(a15))) || (80 < a12 && 8 <= a21)) || ((!(7 == a15) && a12 <= 95442) && 95374 <= a12)) || !(\old(a21) <= 7)) || ((81 <= a12 && !(a21 == 6)) && !(7 == a15))) || !(\old(a12) + 49 <= 0)) || (((7 == a15 && 81 <= a12) && a21 == 6) && a24 == 1)) || a15 == \old(a15)) || ((8 <= a21 && a12 <= 11) && !(a21 == a15))) || ((a21 == 6 && a24 == 1) && a12 + 2797 <= 0)) || (((((((0 <= a12 + 41 && a15 <= 7) && a12 <= 10) && a24 <= 1) && 7 <= a15) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || a21 == 8) || ((((6 <= a15 && a24 <= 1) && 12849 <= a12) && 1 <= a24) && a15 <= 6)) || (((((((a21 <= 7 && a12 <= 69) && 7 <= a21) && a15 <= 5) && a24 <= 1) && 58 <= a12) && 1 <= a24) && 5 <= a15)) || (((((a15 <= 7 && a24 <= 1) && 7 <= a15) && 1 <= a24) && 10 <= a21) && a21 <= 10)) || ((5 == a15 && a21 == 10) && a24 == 1)) || 6 == \old(a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 168.0s, OverallIterations: 27, TraceHistogramMax: 8, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 857 SDtfs, 11452 SDslu, 1095 SDs, 0 SdLazy, 27835 SolverSat, 2550 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 532 GetRequests, 296 SyntacticMatches, 12 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4818occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 2482 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 437 PreInvPairs, 541 NumberOfFragments, 1223 HoareAnnotationTreeSize, 437 FomulaSimplifications, 2085233000316 FormulaSimplificationTreeSizeReduction, 4.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 590520228 FormulaSimplificationTreeSizeReductionInter, 10.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 116.5s InterpolantComputationTime, 12671 NumberOfCodeBlocks, 12671 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 12644 ConstructedInterpolants, 0 QuantifiedInterpolants, 21191700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 17446/18690 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...