/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/Problem03_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:18:42,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:18:42,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:18:42,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:18:42,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:18:42,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:18:42,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:18:42,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:18:42,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:18:42,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:18:42,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:18:42,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:18:42,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:18:42,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:18:42,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:18:42,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:18:42,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:18:42,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:18:42,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:18:42,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:18:42,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:18:42,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:18:42,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:18:42,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:18:42,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:18:42,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:18:42,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:18:42,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:18:42,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:18:42,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:18:42,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:18:42,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:18:42,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:18:42,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:18:42,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:18:42,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:18:42,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:18:42,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:18:42,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:18:42,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:18:42,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:18:42,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:18:42,385 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:18:42,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:18:42,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:18:42,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:18:42,388 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:18:42,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:18:42,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:18:42,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:18:42,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:18:42,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:18:42,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:18:42,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:18:42,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:18:42,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:18:42,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:18:42,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:18:42,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:18:42,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:18:42,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:18:42,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:18:42,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:18:42,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:18:42,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:18:42,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:18:42,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:18:42,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:18:42,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:18:42,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:18:42,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:18:42,719 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:18:42,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label26.c [2020-10-13 06:18:42,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e1bf0f77/6ec4cd94371f43d28d44c7d29b2aec28/FLAG6f5520e4c [2020-10-13 06:18:43,319 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:18:43,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label26.c [2020-10-13 06:18:43,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e1bf0f77/6ec4cd94371f43d28d44c7d29b2aec28/FLAG6f5520e4c [2020-10-13 06:18:43,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e1bf0f77/6ec4cd94371f43d28d44c7d29b2aec28 [2020-10-13 06:18:43,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:18:43,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:18:43,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:18:43,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:18:43,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:18:43,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:43" (1/1) ... [2020-10-13 06:18:43,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdfc9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:43, skipping insertion in model container [2020-10-13 06:18:43,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:43" (1/1) ... [2020-10-13 06:18:43,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:18:43,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:18:44,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:18:44,456 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:18:44,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:18:44,700 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:18:44,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44 WrapperNode [2020-10-13 06:18:44,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:18:44,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:18:44,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:18:44,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:18:44,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... [2020-10-13 06:18:44,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:18:44,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:18:44,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:18:44,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:18:44,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:18:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:18:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:18:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:18:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:18:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:18:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:18:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:18:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:18:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:18:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:18:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:18:46,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:18:46,917 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:18:46,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:46 BoogieIcfgContainer [2020-10-13 06:18:46,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:18:46,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:18:46,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:18:46,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:18:46,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:18:43" (1/3) ... [2020-10-13 06:18:46,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18930723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:46, skipping insertion in model container [2020-10-13 06:18:46,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:44" (2/3) ... [2020-10-13 06:18:46,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18930723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:46, skipping insertion in model container [2020-10-13 06:18:46,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:46" (3/3) ... [2020-10-13 06:18:46,932 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label26.c [2020-10-13 06:18:46,942 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:18:46,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:18:46,963 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:18:46,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:18:46,988 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:18:46,988 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:18:46,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:18:46,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:18:46,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:18:46,989 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:18:46,989 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:18:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-13 06:18:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 06:18:47,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:18:47,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:18:47,029 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:18:47,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:18:47,036 INFO L82 PathProgramCache]: Analyzing trace with hash -142295563, now seen corresponding path program 1 times [2020-10-13 06:18:47,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:18:47,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796892342] [2020-10-13 06:18:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:18:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:18:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:18:48,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:18:51,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:18:51,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 06:18:51,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:18:51,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4085 [2020-10-13 06:18:51,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:18:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:18:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:18:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 06:18:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:18:52,529 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 63 [2020-10-13 06:18:52,732 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:18:53,225 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2020-10-13 06:18:53,483 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2020-10-13 06:18:53,677 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-10-13 06:18:53,832 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-10-13 06:18:53,971 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2020-10-13 06:18:54,283 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:18:54,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:18:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:18:54,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:18:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:18:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:18:54,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:18:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:18:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:18:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:18:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:18:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:18:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:18:54,619 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2020-10-13 06:18:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:18:55,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796892342] [2020-10-13 06:18:55,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:18:55,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 06:18:55,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587250243] [2020-10-13 06:18:55,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:18:55,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:18:55,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:18:55,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:18:55,278 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 14 states. [2020-10-13 06:18:55,676 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-13 06:18:56,482 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 186 [2020-10-13 06:18:57,293 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 186 [2020-10-13 06:18:58,161 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 206 [2020-10-13 06:18:59,015 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 203 [2020-10-13 06:19:00,075 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 200 [2020-10-13 06:19:01,231 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 197 [2020-10-13 06:19:03,784 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 194 [2020-10-13 06:19:05,009 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 227 DAG size of output: 190 [2020-10-13 06:19:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:07,109 INFO L93 Difference]: Finished difference Result 737 states and 1287 transitions. [2020-10-13 06:19:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:19:07,112 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 162 [2020-10-13 06:19:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:07,127 INFO L225 Difference]: With dead ends: 737 [2020-10-13 06:19:07,127 INFO L226 Difference]: Without dead ends: 364 [2020-10-13 06:19:07,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:19:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-10-13 06:19:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2020-10-13 06:19:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-13 06:19:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 525 transitions. [2020-10-13 06:19:07,212 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 525 transitions. Word has length 162 [2020-10-13 06:19:07,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:07,213 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 525 transitions. [2020-10-13 06:19:07,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:19:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 525 transitions. [2020-10-13 06:19:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-13 06:19:07,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:07,219 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:07,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:19:07,219 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2108105746, now seen corresponding path program 1 times [2020-10-13 06:19:07,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:07,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826814930] [2020-10-13 06:19:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:07,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:07,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:10,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:10,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 06:19:10,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:19:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3557 [2020-10-13 06:19:10,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:19:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-13 06:19:10,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:11,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:11,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:11,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:11,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:11,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:11,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:19:11,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:11,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:11,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:11,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:11,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:11,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:11,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:19:11,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:11,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:19:11,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:11,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:19:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:19:11,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826814930] [2020-10-13 06:19:11,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:11,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:19:11,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020670268] [2020-10-13 06:19:11,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:19:11,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:11,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:19:11,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:19:11,320 INFO L87 Difference]: Start difference. First operand 364 states and 525 transitions. Second operand 5 states. [2020-10-13 06:19:11,448 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:19:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:13,616 INFO L93 Difference]: Finished difference Result 818 states and 1276 transitions. [2020-10-13 06:19:13,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:19:13,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 173 [2020-10-13 06:19:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:13,625 INFO L225 Difference]: With dead ends: 818 [2020-10-13 06:19:13,625 INFO L226 Difference]: Without dead ends: 575 [2020-10-13 06:19:13,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:19:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-13 06:19:13,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2020-10-13 06:19:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-13 06:19:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 774 transitions. [2020-10-13 06:19:13,671 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 774 transitions. Word has length 173 [2020-10-13 06:19:13,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:13,672 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 774 transitions. [2020-10-13 06:19:13,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:19:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 774 transitions. [2020-10-13 06:19:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-13 06:19:13,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:13,678 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:13,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:19:13,678 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:13,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash -452538054, now seen corresponding path program 1 times [2020-10-13 06:19:13,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:13,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731803078] [2020-10-13 06:19:13,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:13,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:14,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:15,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:15,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:19:15,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:19:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1672 [2020-10-13 06:19:15,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:19:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-13 06:19:15,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:19:15,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:15,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:15,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:15,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:15,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:19:15,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:15,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:15,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:15,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:15,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:19:15,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:19:15,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:15,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:19:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:19:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:19:15,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731803078] [2020-10-13 06:19:15,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:15,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:19:15,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885327804] [2020-10-13 06:19:15,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:19:15,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:19:15,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:19:15,976 INFO L87 Difference]: Start difference. First operand 575 states and 774 transitions. Second operand 5 states. [2020-10-13 06:19:16,347 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:19:18,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:18,682 INFO L93 Difference]: Finished difference Result 1461 states and 2043 transitions. [2020-10-13 06:19:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:19:18,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2020-10-13 06:19:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:18,690 INFO L225 Difference]: With dead ends: 1461 [2020-10-13 06:19:18,690 INFO L226 Difference]: Without dead ends: 1007 [2020-10-13 06:19:18,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:19:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2020-10-13 06:19:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1006. [2020-10-13 06:19:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2020-10-13 06:19:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1311 transitions. [2020-10-13 06:19:18,741 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1311 transitions. Word has length 183 [2020-10-13 06:19:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:18,742 INFO L479 AbstractCegarLoop]: Abstraction has 1006 states and 1311 transitions. [2020-10-13 06:19:18,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:19:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1311 transitions. [2020-10-13 06:19:18,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:19:18,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:18,749 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:18,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:19:18,749 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash 418632913, now seen corresponding path program 1 times [2020-10-13 06:19:18,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:18,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239797590] [2020-10-13 06:19:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:18,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:19,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:20,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:20,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 06:19:20,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:19:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2021 [2020-10-13 06:19:20,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:19:20,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:19:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:20,976 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:19:20,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:20,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:20,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:20,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:20,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:19:20,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:20,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:20,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:20,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:20,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:19:21,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:21,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:21,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:21,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:19:21,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:21,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 06:19:21,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:21,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:21,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:19:21,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:21,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:19:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:21,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:21,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:21,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:19:21,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:21,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:19:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:19:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:19:21,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239797590] [2020-10-13 06:19:21,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:21,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:19:21,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22455012] [2020-10-13 06:19:21,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:19:21,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:21,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:19:21,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:19:21,290 INFO L87 Difference]: Start difference. First operand 1006 states and 1311 transitions. Second operand 7 states. [2020-10-13 06:19:21,597 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:19:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:24,458 INFO L93 Difference]: Finished difference Result 2355 states and 3247 transitions. [2020-10-13 06:19:24,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:19:24,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-13 06:19:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:24,467 INFO L225 Difference]: With dead ends: 2355 [2020-10-13 06:19:24,467 INFO L226 Difference]: Without dead ends: 1470 [2020-10-13 06:19:24,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:19:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2020-10-13 06:19:24,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1450. [2020-10-13 06:19:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-13 06:19:24,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1860 transitions. [2020-10-13 06:19:24,516 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1860 transitions. Word has length 193 [2020-10-13 06:19:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:24,516 INFO L479 AbstractCegarLoop]: Abstraction has 1450 states and 1860 transitions. [2020-10-13 06:19:24,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:19:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1860 transitions. [2020-10-13 06:19:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 06:19:24,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:24,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:24,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:19:24,523 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:24,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:24,523 INFO L82 PathProgramCache]: Analyzing trace with hash -967242254, now seen corresponding path program 1 times [2020-10-13 06:19:24,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:24,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112546112] [2020-10-13 06:19:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:24,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:24,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:27,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:27,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 06:19:27,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:19:27,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2657 [2020-10-13 06:19:27,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:27,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 06:19:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:19:27,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:19:27,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:27,393 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:19:27,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:27,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:27,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:27,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:27,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:27,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:19:27,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:19:27,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:27,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:27,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:27,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:27,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:19:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:27,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 06:19:27,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:27,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 06:19:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:19:27,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112546112] [2020-10-13 06:19:27,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:19:27,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 06:19:27,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547997983] [2020-10-13 06:19:27,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:19:27,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:27,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:19:27,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:19:27,646 INFO L87 Difference]: Start difference. First operand 1450 states and 1860 transitions. Second operand 7 states. [2020-10-13 06:19:27,783 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:19:29,576 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 06:19:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:30,537 INFO L93 Difference]: Finished difference Result 4156 states and 5488 transitions. [2020-10-13 06:19:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:19:30,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-13 06:19:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:30,558 INFO L225 Difference]: With dead ends: 4156 [2020-10-13 06:19:30,558 INFO L226 Difference]: Without dead ends: 2827 [2020-10-13 06:19:30,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:19:30,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2020-10-13 06:19:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2807. [2020-10-13 06:19:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2807 states. [2020-10-13 06:19:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 3651 transitions. [2020-10-13 06:19:30,659 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 3651 transitions. Word has length 194 [2020-10-13 06:19:30,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:30,660 INFO L479 AbstractCegarLoop]: Abstraction has 2807 states and 3651 transitions. [2020-10-13 06:19:30,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:19:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 3651 transitions. [2020-10-13 06:19:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-13 06:19:30,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:30,669 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:30,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:19:30,670 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:30,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:30,670 INFO L82 PathProgramCache]: Analyzing trace with hash -665909269, now seen corresponding path program 1 times [2020-10-13 06:19:30,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:30,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53943702] [2020-10-13 06:19:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:30,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:19:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:19:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4066 [2020-10-13 06:19:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 06:19:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:19:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 06:19:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:34,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:34,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:35,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:35,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:35,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:35,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:19:35,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:35,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:19:35,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:35,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:35,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:35,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:19:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:35,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:19:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:35,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:35,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 06:19:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 06:19:35,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53943702] [2020-10-13 06:19:35,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:35,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:19:35,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069911216] [2020-10-13 06:19:35,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:19:35,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:35,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:19:35,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:19:35,243 INFO L87 Difference]: Start difference. First operand 2807 states and 3651 transitions. Second operand 7 states. [2020-10-13 06:19:35,372 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 06:19:35,903 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 06:19:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:37,885 INFO L93 Difference]: Finished difference Result 7318 states and 9468 transitions. [2020-10-13 06:19:37,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:19:37,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2020-10-13 06:19:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:37,910 INFO L225 Difference]: With dead ends: 7318 [2020-10-13 06:19:37,910 INFO L226 Difference]: Without dead ends: 4632 [2020-10-13 06:19:37,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:19:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-10-13 06:19:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4576. [2020-10-13 06:19:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-10-13 06:19:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 5812 transitions. [2020-10-13 06:19:38,041 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 5812 transitions. Word has length 205 [2020-10-13 06:19:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:38,041 INFO L479 AbstractCegarLoop]: Abstraction has 4576 states and 5812 transitions. [2020-10-13 06:19:38,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:19:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 5812 transitions. [2020-10-13 06:19:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:19:38,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:38,054 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:38,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:19:38,055 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:38,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:38,055 INFO L82 PathProgramCache]: Analyzing trace with hash 874397417, now seen corresponding path program 1 times [2020-10-13 06:19:38,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:38,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141220451] [2020-10-13 06:19:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:39,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:41,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-13 06:19:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:19:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3056 [2020-10-13 06:19:41,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 06:19:41,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:19:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:41,302 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:19:41,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:41,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:41,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:41,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:19:41,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:41,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:41,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:41,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:41,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:41,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:19:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:41,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:41,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:41,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:19:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 06:19:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:41,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:41,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 06:19:41,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:41,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:19:41,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:41,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:41,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:41,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:19:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:19:41,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141220451] [2020-10-13 06:19:41,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:41,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:19:41,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876589047] [2020-10-13 06:19:41,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:19:41,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:41,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:19:41,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:19:41,588 INFO L87 Difference]: Start difference. First operand 4576 states and 5812 transitions. Second operand 7 states. [2020-10-13 06:19:41,722 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:19:42,443 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 06:19:44,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:44,652 INFO L93 Difference]: Finished difference Result 13578 states and 18017 transitions. [2020-10-13 06:19:44,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:19:44,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-13 06:19:44,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:44,695 INFO L225 Difference]: With dead ends: 13578 [2020-10-13 06:19:44,695 INFO L226 Difference]: Without dead ends: 9123 [2020-10-13 06:19:44,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:19:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2020-10-13 06:19:44,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 8974. [2020-10-13 06:19:44,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8974 states. [2020-10-13 06:19:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8974 states to 8974 states and 11082 transitions. [2020-10-13 06:19:44,949 INFO L78 Accepts]: Start accepts. Automaton has 8974 states and 11082 transitions. Word has length 208 [2020-10-13 06:19:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:44,949 INFO L479 AbstractCegarLoop]: Abstraction has 8974 states and 11082 transitions. [2020-10-13 06:19:44,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:19:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 8974 states and 11082 transitions. [2020-10-13 06:19:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-13 06:19:44,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:44,970 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:44,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:19:44,971 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1377321126, now seen corresponding path program 1 times [2020-10-13 06:19:44,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:44,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360544160] [2020-10-13 06:19:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:45,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:45,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:50,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:19:50,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:19:50,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:50,177 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:19:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:50,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:50,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:50,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:50,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:50,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:50,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:50,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:50,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:19:50,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:50,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:19:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:50,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:50,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:19:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 06:19:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:50,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:50,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:50,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 63 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 06:19:50,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360544160] [2020-10-13 06:19:50,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:50,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:19:50,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449374089] [2020-10-13 06:19:50,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:19:50,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:50,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:19:50,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:19:50,446 INFO L87 Difference]: Start difference. First operand 8974 states and 11082 transitions. Second operand 7 states. [2020-10-13 06:19:50,568 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:19:51,231 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:19:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:19:53,170 INFO L93 Difference]: Finished difference Result 26027 states and 33676 transitions. [2020-10-13 06:19:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:19:53,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-13 06:19:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:19:53,238 INFO L225 Difference]: With dead ends: 26027 [2020-10-13 06:19:53,238 INFO L226 Difference]: Without dead ends: 17174 [2020-10-13 06:19:53,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:19:53,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17174 states. [2020-10-13 06:19:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17174 to 17025. [2020-10-13 06:19:53,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17025 states. [2020-10-13 06:19:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17025 states to 17025 states and 20713 transitions. [2020-10-13 06:19:53,893 INFO L78 Accepts]: Start accepts. Automaton has 17025 states and 20713 transitions. Word has length 222 [2020-10-13 06:19:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:19:53,894 INFO L479 AbstractCegarLoop]: Abstraction has 17025 states and 20713 transitions. [2020-10-13 06:19:53,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:19:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 17025 states and 20713 transitions. [2020-10-13 06:19:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-13 06:19:53,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:19:53,927 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:19:53,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:19:53,928 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:19:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:19:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1891462130, now seen corresponding path program 1 times [2020-10-13 06:19:53,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:19:53,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807687158] [2020-10-13 06:19:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:19:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:54,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:54,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:54,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:56,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:58,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-13 06:19:59,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:19:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 06:19:59,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 06:19:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:19:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:59,157 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:19:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:19:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:59,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:59,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:59,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:59,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:19:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:59,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:19:59,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:59,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:19:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 06:19:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:19:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:19:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:19:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:19:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 06:19:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:59,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:59,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 06:19:59,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:19:59,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:19:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:19:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:19:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:59,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 06:19:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:19:59,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:19:59,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:19:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:19:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:19:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-13 06:19:59,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807687158] [2020-10-13 06:19:59,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:19:59,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:19:59,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118531581] [2020-10-13 06:19:59,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:19:59,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:19:59,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:19:59,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:19:59,445 INFO L87 Difference]: Start difference. First operand 17025 states and 20713 transitions. Second operand 8 states. [2020-10-13 06:19:59,720 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:20:00,329 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:20:01,732 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:20:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:20:05,797 INFO L93 Difference]: Finished difference Result 85697 states and 116035 transitions. [2020-10-13 06:20:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:20:05,797 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 242 [2020-10-13 06:20:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:20:06,105 INFO L225 Difference]: With dead ends: 85697 [2020-10-13 06:20:06,106 INFO L226 Difference]: Without dead ends: 68793 [2020-10-13 06:20:06,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-13 06:20:06,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68793 states. [2020-10-13 06:20:09,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68793 to 68425. [2020-10-13 06:20:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68425 states. [2020-10-13 06:20:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68425 states to 68425 states and 89218 transitions. [2020-10-13 06:20:09,478 INFO L78 Accepts]: Start accepts. Automaton has 68425 states and 89218 transitions. Word has length 242 [2020-10-13 06:20:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:20:09,478 INFO L479 AbstractCegarLoop]: Abstraction has 68425 states and 89218 transitions. [2020-10-13 06:20:09,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:20:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 68425 states and 89218 transitions. [2020-10-13 06:20:09,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-13 06:20:09,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:20:09,615 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:20:09,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:20:09,616 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:20:09,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:20:09,617 INFO L82 PathProgramCache]: Analyzing trace with hash 356542718, now seen corresponding path program 1 times [2020-10-13 06:20:09,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:20:09,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187048820] [2020-10-13 06:20:09,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:20:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:09,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:09,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:10,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:13,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:14,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:14,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-13 06:20:14,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 06:20:14,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:14,856 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:20:14,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:20:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:14,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:14,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:14,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:20:14,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:20:14,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:14,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:20:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:14,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:14,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:14,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:20:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:14,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 06:20:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:15,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 06:20:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:15,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:15,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:15,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:20:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:20:15,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187048820] [2020-10-13 06:20:15,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:20:15,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:20:15,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340322938] [2020-10-13 06:20:15,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:20:15,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:20:15,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:20:15,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:20:15,346 INFO L87 Difference]: Start difference. First operand 68425 states and 89218 transitions. Second operand 7 states. [2020-10-13 06:20:15,554 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:20:15,779 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:20:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:20:19,687 INFO L93 Difference]: Finished difference Result 152767 states and 207159 transitions. [2020-10-13 06:20:19,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:20:19,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-13 06:20:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:20:20,051 INFO L225 Difference]: With dead ends: 152767 [2020-10-13 06:20:20,052 INFO L226 Difference]: Without dead ends: 84463 [2020-10-13 06:20:20,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:20:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84463 states. [2020-10-13 06:20:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84463 to 83147. [2020-10-13 06:20:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83147 states. [2020-10-13 06:20:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83147 states to 83147 states and 104938 transitions. [2020-10-13 06:20:24,138 INFO L78 Accepts]: Start accepts. Automaton has 83147 states and 104938 transitions. Word has length 242 [2020-10-13 06:20:24,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:20:24,138 INFO L479 AbstractCegarLoop]: Abstraction has 83147 states and 104938 transitions. [2020-10-13 06:20:24,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:20:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 83147 states and 104938 transitions. [2020-10-13 06:20:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-13 06:20:24,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:20:24,256 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:20:24,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:20:24,257 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:20:24,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:20:24,257 INFO L82 PathProgramCache]: Analyzing trace with hash -108218359, now seen corresponding path program 1 times [2020-10-13 06:20:24,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:20:24,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771615162] [2020-10-13 06:20:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:20:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:24,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:24,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:27,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:29,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:29,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:20:29,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:20:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 06:20:29,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:20:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 06:20:29,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:29,466 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:20:29,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:20:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:29,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:29,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:29,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:20:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:29,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:29,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:20:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:29,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:20:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:29,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:29,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:29,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:20:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:20:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:29,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 06:20:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:29,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:29,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:29,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:20:29,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:29,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:20:29,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 06:20:29,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:29,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 106 proven. 33 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 06:20:29,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771615162] [2020-10-13 06:20:29,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:20:29,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:20:29,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900954824] [2020-10-13 06:20:29,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:20:29,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:20:29,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:20:29,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:20:29,772 INFO L87 Difference]: Start difference. First operand 83147 states and 104938 transitions. Second operand 7 states. [2020-10-13 06:20:29,906 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 06:20:30,474 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:20:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:20:33,103 INFO L93 Difference]: Finished difference Result 166616 states and 215468 transitions. [2020-10-13 06:20:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:20:33,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-13 06:20:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:20:33,424 INFO L225 Difference]: With dead ends: 166616 [2020-10-13 06:20:33,424 INFO L226 Difference]: Without dead ends: 84436 [2020-10-13 06:20:33,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:20:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84436 states. [2020-10-13 06:20:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84436 to 83400. [2020-10-13 06:20:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83400 states. [2020-10-13 06:20:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83400 states to 83400 states and 101695 transitions. [2020-10-13 06:20:36,079 INFO L78 Accepts]: Start accepts. Automaton has 83400 states and 101695 transitions. Word has length 265 [2020-10-13 06:20:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:20:36,079 INFO L479 AbstractCegarLoop]: Abstraction has 83400 states and 101695 transitions. [2020-10-13 06:20:36,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:20:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 83400 states and 101695 transitions. [2020-10-13 06:20:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-13 06:20:36,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:20:36,190 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:20:36,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:20:36,190 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:20:36,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:20:36,191 INFO L82 PathProgramCache]: Analyzing trace with hash 398724300, now seen corresponding path program 1 times [2020-10-13 06:20:36,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:20:36,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162110170] [2020-10-13 06:20:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:20:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:37,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:37,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 932 [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:20:37,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:20:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:37,388 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:20:37,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:20:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:37,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:37,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:20:37,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:20:37,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:37,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:20:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:37,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:20:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:20:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:37,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 06:20:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:37,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:20:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:20:37,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162110170] [2020-10-13 06:20:37,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:20:37,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:20:37,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870182276] [2020-10-13 06:20:37,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:20:37,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:20:37,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:20:37,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:20:37,881 INFO L87 Difference]: Start difference. First operand 83400 states and 101695 transitions. Second operand 7 states. [2020-10-13 06:20:38,149 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 06:20:38,640 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 06:20:43,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:20:43,453 INFO L93 Difference]: Finished difference Result 214184 states and 279193 transitions. [2020-10-13 06:20:43,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:20:43,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-13 06:20:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:20:44,017 INFO L225 Difference]: With dead ends: 214184 [2020-10-13 06:20:44,017 INFO L226 Difference]: Without dead ends: 117765 [2020-10-13 06:20:44,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:20:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117765 states. [2020-10-13 06:20:49,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117765 to 113410. [2020-10-13 06:20:49,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113410 states. [2020-10-13 06:20:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113410 states to 113410 states and 133140 transitions. [2020-10-13 06:20:50,088 INFO L78 Accepts]: Start accepts. Automaton has 113410 states and 133140 transitions. Word has length 265 [2020-10-13 06:20:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:20:50,089 INFO L479 AbstractCegarLoop]: Abstraction has 113410 states and 133140 transitions. [2020-10-13 06:20:50,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:20:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 113410 states and 133140 transitions. [2020-10-13 06:20:50,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-13 06:20:50,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:20:50,175 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:20:50,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:20:50,175 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:20:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:20:50,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1424047604, now seen corresponding path program 1 times [2020-10-13 06:20:50,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:20:50,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593669266] [2020-10-13 06:20:50,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:20:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:50,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:50,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:54,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-13 06:20:55,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:20:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,390 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:20:55,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:20:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:55,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:20:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:20:55,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:55,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:20:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:20:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:20:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 06:20:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 06:20:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:20:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:20:55,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:20:55,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:20:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:20:55,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:20:55,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 06:20:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:55,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 06:20:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:20:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:20:55,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 06:20:55,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:20:55,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:20:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 142 proven. 30 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-13 06:20:55,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593669266] [2020-10-13 06:20:55,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:20:55,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:20:55,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717131664] [2020-10-13 06:20:55,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:20:55,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:20:55,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:20:55,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:20:55,733 INFO L87 Difference]: Start difference. First operand 113410 states and 133140 transitions. Second operand 7 states. [2020-10-13 06:20:55,869 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:20:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:20:58,256 INFO L93 Difference]: Finished difference Result 208817 states and 245361 transitions. [2020-10-13 06:20:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:20:58,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-13 06:20:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:20:58,454 INFO L225 Difference]: With dead ends: 208817 [2020-10-13 06:20:58,454 INFO L226 Difference]: Without dead ends: 95528 [2020-10-13 06:20:58,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:20:58,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95528 states. [2020-10-13 06:21:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95528 to 95366. [2020-10-13 06:21:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95366 states. [2020-10-13 06:21:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95366 states to 95366 states and 109802 transitions. [2020-10-13 06:21:00,260 INFO L78 Accepts]: Start accepts. Automaton has 95366 states and 109802 transitions. Word has length 276 [2020-10-13 06:21:00,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:21:00,260 INFO L479 AbstractCegarLoop]: Abstraction has 95366 states and 109802 transitions. [2020-10-13 06:21:00,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:21:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 95366 states and 109802 transitions. [2020-10-13 06:21:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-13 06:21:00,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:21:00,296 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:21:00,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:21:00,296 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:21:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:21:00,297 INFO L82 PathProgramCache]: Analyzing trace with hash -2053952848, now seen corresponding path program 1 times [2020-10-13 06:21:00,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:21:00,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861450811] [2020-10-13 06:21:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:21:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:00,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:00,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:00,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 291 [2020-10-13 06:21:00,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-13 06:21:00,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:21:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-13 06:21:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:21:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:00,980 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:21:00,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:21:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:00,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:01,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:21:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:01,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:01,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:01,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 06:21:01,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 06:21:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:01,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 06:21:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:01,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:21:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:21:01,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861450811] [2020-10-13 06:21:01,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:21:01,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:21:01,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058619309] [2020-10-13 06:21:01,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:21:01,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:21:01,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:21:01,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:21:01,374 INFO L87 Difference]: Start difference. First operand 95366 states and 109802 transitions. Second operand 7 states. [2020-10-13 06:21:01,656 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 06:21:02,438 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:21:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:21:07,445 INFO L93 Difference]: Finished difference Result 220804 states and 271788 transitions. [2020-10-13 06:21:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:21:07,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 279 [2020-10-13 06:21:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:21:07,842 INFO L225 Difference]: With dead ends: 220804 [2020-10-13 06:21:07,842 INFO L226 Difference]: Without dead ends: 125333 [2020-10-13 06:21:08,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:21:08,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125333 states. [2020-10-13 06:21:09,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125333 to 120047. [2020-10-13 06:21:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120047 states. [2020-10-13 06:21:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120047 states to 120047 states and 138880 transitions. [2020-10-13 06:21:10,238 INFO L78 Accepts]: Start accepts. Automaton has 120047 states and 138880 transitions. Word has length 279 [2020-10-13 06:21:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:21:10,238 INFO L479 AbstractCegarLoop]: Abstraction has 120047 states and 138880 transitions. [2020-10-13 06:21:10,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:21:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 120047 states and 138880 transitions. [2020-10-13 06:21:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-13 06:21:10,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:21:10,310 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:21:10,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:21:10,310 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:21:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:21:10,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1880841436, now seen corresponding path program 1 times [2020-10-13 06:21:10,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:21:10,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930092580] [2020-10-13 06:21:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:21:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:10,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:10,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:10,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:10,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 06:21:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 112 [2020-10-13 06:21:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:21:15,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,572 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:21:15,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:21:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:15,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:21:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:21:15,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:15,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:21:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:21:15,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:21:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:15,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 06:21:15,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 06:21:15,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:15,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:15,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 06:21:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:21:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 06:21:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:21:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 06:21:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:15,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:15,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:15,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 06:21:15,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:21:15,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 06:21:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:21:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:21:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:15,975 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-10-13 06:21:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-13 06:21:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:16,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 06:21:16,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:16,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 06:21:16,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:16,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 06:21:16,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:21:16,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:21:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:16,420 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2020-10-13 06:21:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 257 proven. 29 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-13 06:21:16,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930092580] [2020-10-13 06:21:16,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:21:16,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 06:21:16,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669346563] [2020-10-13 06:21:16,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 06:21:16,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:21:16,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 06:21:16,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:21:16,810 INFO L87 Difference]: Start difference. First operand 120047 states and 138880 transitions. Second operand 12 states. [2020-10-13 06:21:16,973 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 06:21:17,344 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 159 [2020-10-13 06:21:17,603 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-13 06:21:17,818 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-13 06:21:17,955 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-10-13 06:21:18,976 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2020-10-13 06:21:19,414 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:21:19,774 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 159 [2020-10-13 06:21:20,677 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 150 [2020-10-13 06:21:21,365 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 06:21:21,750 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-10-13 06:21:22,117 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 06:21:22,595 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 150 [2020-10-13 06:21:22,821 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2020-10-13 06:21:25,336 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 150 [2020-10-13 06:21:25,807 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-13 06:21:28,078 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2020-10-13 06:21:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:21:29,260 INFO L93 Difference]: Finished difference Result 304340 states and 363797 transitions. [2020-10-13 06:21:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-13 06:21:29,261 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 330 [2020-10-13 06:21:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:21:29,653 INFO L225 Difference]: With dead ends: 304340 [2020-10-13 06:21:29,654 INFO L226 Difference]: Without dead ends: 185530 [2020-10-13 06:21:29,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 06:21:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185530 states. [2020-10-13 06:21:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185530 to 183194. [2020-10-13 06:21:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183194 states. [2020-10-13 06:21:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183194 states to 183194 states and 214517 transitions. [2020-10-13 06:21:33,232 INFO L78 Accepts]: Start accepts. Automaton has 183194 states and 214517 transitions. Word has length 330 [2020-10-13 06:21:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:21:33,232 INFO L479 AbstractCegarLoop]: Abstraction has 183194 states and 214517 transitions. [2020-10-13 06:21:33,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 06:21:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 183194 states and 214517 transitions. [2020-10-13 06:21:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:21:33,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:21:33,314 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:21:33,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:21:33,315 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:21:33,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:21:33,315 INFO L82 PathProgramCache]: Analyzing trace with hash 604465620, now seen corresponding path program 1 times [2020-10-13 06:21:33,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:21:33,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852915199] [2020-10-13 06:21:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:21:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:33,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:33,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:33,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:34,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:40,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:40,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 06:21:40,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:21:40,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7185 [2020-10-13 06:21:40,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:21:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 06:21:40,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:21:40,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:40,743 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 06:21:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:21:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:40,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:40,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:21:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:40,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:40,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:40,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:21:40,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:21:40,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:40,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:21:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:40,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:21:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:40,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 06:21:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:40,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:21:40,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:21:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:21:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 06:21:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:21:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:21:41,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:21:41,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 06:21:41,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:21:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-13 06:21:41,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852915199] [2020-10-13 06:21:41,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:21:41,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:21:41,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848341449] [2020-10-13 06:21:41,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:21:41,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:21:41,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:21:41,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:21:41,202 INFO L87 Difference]: Start difference. First operand 183194 states and 214517 transitions. Second operand 7 states. [2020-10-13 06:21:42,079 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 06:21:42,292 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 06:21:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:21:56,969 INFO L93 Difference]: Finished difference Result 543364 states and 723381 transitions. [2020-10-13 06:21:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:21:56,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-10-13 06:21:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:21:58,480 INFO L225 Difference]: With dead ends: 543364 [2020-10-13 06:21:58,480 INFO L226 Difference]: Without dead ends: 361407 [2020-10-13 06:21:58,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:21:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361407 states. [2020-10-13 06:22:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361407 to 335539. [2020-10-13 06:22:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335539 states.