/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/recursive-simple/sum_20x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:11:44,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:11:44,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:11:44,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:11:44,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:11:44,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:11:44,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:11:44,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:11:44,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:11:44,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:11:44,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:11:44,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:11:44,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:11:44,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:11:44,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:11:44,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:11:44,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:11:44,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:11:44,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:11:44,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:11:44,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:11:44,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:11:44,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:11:44,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:11:44,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:11:44,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:11:44,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:11:44,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:11:44,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:11:44,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:11:44,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:11:44,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:11:44,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:11:44,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:11:44,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:11:44,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:11:44,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:11:44,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:11:44,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:11:44,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:11:44,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:11:44,332 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 [2020-10-15 02:11:44,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:11:44,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:11:44,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:11:44,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:11:44,372 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:11:44,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:11:44,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:11:44,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:11:44,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:11:44,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:11:44,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:11:44,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:11:44,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:11:44,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:11:44,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:11:44,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:11:44,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:11:44,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:11:44,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:11:44,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:11:44,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:11:44,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:11:44,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:11:44,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:11:44,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:11:44,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:11:44,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:11:44,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:11:44,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:11:44,378 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:11:44,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:11:44,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:11:44,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:11:44,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:11:44,729 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:11:44,730 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-10-15 02:11:44,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02ff75646/821f4132c4c140dc89b57cc8c05fc90a/FLAG75b1a5a9d [2020-10-15 02:11:45,229 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:11:45,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-10-15 02:11:45,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02ff75646/821f4132c4c140dc89b57cc8c05fc90a/FLAG75b1a5a9d [2020-10-15 02:11:45,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02ff75646/821f4132c4c140dc89b57cc8c05fc90a [2020-10-15 02:11:45,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:11:45,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:11:45,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:45,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:11:45,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:11:45,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ea115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45, skipping insertion in model container [2020-10-15 02:11:45,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:11:45,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:11:45,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:45,830 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:11:45,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:45,857 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:11:45,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45 WrapperNode [2020-10-15 02:11:45,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:45,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:11:45,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:11:45,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:11:45,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (1/1) ... [2020-10-15 02:11:45,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:11:45,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:11:45,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:11:45,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:11:45,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (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 [2020-10-15 02:11:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:11:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:11:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-15 02:11:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:11:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:11:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-15 02:11:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:11:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:11:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:11:46,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:11:46,194 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:11:46,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:46 BoogieIcfgContainer [2020-10-15 02:11:46,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:11:46,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:11:46,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:11:46,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:11:46,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:11:45" (1/3) ... [2020-10-15 02:11:46,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed61b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:46, skipping insertion in model container [2020-10-15 02:11:46,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:45" (2/3) ... [2020-10-15 02:11:46,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed61b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:46, skipping insertion in model container [2020-10-15 02:11:46,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:46" (3/3) ... [2020-10-15 02:11:46,205 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c [2020-10-15 02:11:46,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:11:46,220 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:11:46,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:11:46,257 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:11:46,257 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:11:46,257 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:11:46,257 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:11:46,258 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:11:46,258 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:11:46,258 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:11:46,258 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:11:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-15 02:11:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 02:11:46,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:46,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:46,281 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-15 02:11:46,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:46,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279967993] [2020-10-15 02:11:46,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:46,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:46,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 02:11:46,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:46,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-15 02:11:46,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:46,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:11:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:46,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:11:46,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:11:46,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:46,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:46,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:46,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:46,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:46,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:46,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:46,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:46,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:46,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:46,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:11:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:46,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:11:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:11:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:11:46,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279967993] [2020-10-15 02:11:46,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:11:46,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:11:46,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586808024] [2020-10-15 02:11:46,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:11:46,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:46,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:11:46,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:11:46,653 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-15 02:11:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:46,799 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-15 02:11:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:11:46,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 02:11:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:46,813 INFO L225 Difference]: With dead ends: 30 [2020-10-15 02:11:46,813 INFO L226 Difference]: Without dead ends: 18 [2020-10-15 02:11:46,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:11:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-15 02:11:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-15 02:11:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-15 02:11:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-15 02:11:46,873 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-15 02:11:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:46,873 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-15 02:11:46,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:11:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-15 02:11:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 02:11:46,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:46,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:46,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:11:46,876 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:46,877 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-15 02:11:46,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:46,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978180277] [2020-10-15 02:11:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 02:11:47,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-15 02:11:47,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:11:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:11:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:47,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:47,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:47,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:11:47,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:11:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:11:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:47,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:11:47,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:47,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:47,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 02:11:47,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978180277] [2020-10-15 02:11:47,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:47,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-15 02:11:47,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068245693] [2020-10-15 02:11:47,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:11:47,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:47,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:11:47,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:11:47,273 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-10-15 02:11:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:47,335 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-15 02:11:47,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:11:47,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-15 02:11:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:47,337 INFO L225 Difference]: With dead ends: 25 [2020-10-15 02:11:47,337 INFO L226 Difference]: Without dead ends: 21 [2020-10-15 02:11:47,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:11:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-15 02:11:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-15 02:11:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-15 02:11:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-15 02:11:47,346 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-15 02:11:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:47,347 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-15 02:11:47,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:11:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-15 02:11:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 02:11:47,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:47,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:47,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:11:47,349 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2020-10-15 02:11:47,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:47,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690914383] [2020-10-15 02:11:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:11:47,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:11:47,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:11:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:47,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:11:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:47,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-15 02:11:47,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:11:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:11:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:47,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:11:47,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:47,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:47,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:11:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:47,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 02:11:47,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690914383] [2020-10-15 02:11:47,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:47,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 02:11:47,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182749488] [2020-10-15 02:11:47,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:11:47,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:47,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:11:47,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:11:47,770 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-15 02:11:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:47,842 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-15 02:11:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:11:47,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-15 02:11:47,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:47,845 INFO L225 Difference]: With dead ends: 28 [2020-10-15 02:11:47,845 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 02:11:47,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:11:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 02:11:47,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-15 02:11:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 02:11:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-15 02:11:47,853 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-15 02:11:47,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:47,853 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-15 02:11:47,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:11:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-15 02:11:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-15 02:11:47,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:47,855 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:47,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:11:47,856 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:47,857 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times [2020-10-15 02:11:47,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:47,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545528461] [2020-10-15 02:11:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:11:47,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:11:47,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:11:47,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:47,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:47,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:48,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:48,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:48,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:11:48,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:11:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:48,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 02:11:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:48,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 02:11:48,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:48,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:48,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:11:48,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:48,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:11:48,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:48,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 02:11:48,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545528461] [2020-10-15 02:11:48,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:48,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 02:11:48,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556687635] [2020-10-15 02:11:48,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:11:48,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:48,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:11:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:11:48,394 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 10 states. [2020-10-15 02:11:48,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:48,489 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-15 02:11:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:11:48,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-15 02:11:48,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:48,490 INFO L225 Difference]: With dead ends: 31 [2020-10-15 02:11:48,491 INFO L226 Difference]: Without dead ends: 27 [2020-10-15 02:11:48,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:11:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-15 02:11:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-15 02:11:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-15 02:11:48,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-15 02:11:48,498 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-15 02:11:48,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:48,498 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-15 02:11:48,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:11:48,499 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-15 02:11:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-15 02:11:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:48,500 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:48,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:11:48,500 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:48,501 INFO L82 PathProgramCache]: Analyzing trace with hash -183109604, now seen corresponding path program 4 times [2020-10-15 02:11:48,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:48,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651101116] [2020-10-15 02:11:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 02:11:48,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-15 02:11:48,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:11:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:11:48,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:48,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:48,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:48,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:48,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 02:11:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:11:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 02:11:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:48,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-15 02:11:48,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:48,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:49,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:11:49,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:49,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:49,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:11:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:11:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 29 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-15 02:11:49,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651101116] [2020-10-15 02:11:49,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:49,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 02:11:49,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872421796] [2020-10-15 02:11:49,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:11:49,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:49,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:11:49,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:11:49,162 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-15 02:11:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:49,249 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-15 02:11:49,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 02:11:49,249 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-15 02:11:49,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:49,251 INFO L225 Difference]: With dead ends: 34 [2020-10-15 02:11:49,251 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 02:11:49,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:11:49,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 02:11:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-15 02:11:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-15 02:11:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-15 02:11:49,258 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-15 02:11:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:49,259 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-15 02:11:49,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:11:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-15 02:11:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 02:11:49,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:49,260 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:49,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:11:49,261 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash -155447420, now seen corresponding path program 5 times [2020-10-15 02:11:49,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:49,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904967429] [2020-10-15 02:11:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 02:11:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-15 02:11:49,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:11:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:49,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:49,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-15 02:11:49,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:11:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:11:49,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:49,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-15 02:11:49,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:49,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:49,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-15 02:11:49,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:49,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:49,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:11:49,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:49,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:11:50,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:50,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:50,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:50,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:11:50,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-15 02:11:50,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904967429] [2020-10-15 02:11:50,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:50,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 02:11:50,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666686368] [2020-10-15 02:11:50,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:11:50,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:50,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:11:50,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:11:50,079 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-10-15 02:11:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:50,176 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-15 02:11:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:11:50,177 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-10-15 02:11:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:50,178 INFO L225 Difference]: With dead ends: 37 [2020-10-15 02:11:50,179 INFO L226 Difference]: Without dead ends: 33 [2020-10-15 02:11:50,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:11:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-15 02:11:50,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-15 02:11:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 02:11:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-15 02:11:50,186 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-15 02:11:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:50,187 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-15 02:11:50,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:11:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-15 02:11:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 02:11:50,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:50,189 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:50,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:11:50,189 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:50,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1716183644, now seen corresponding path program 6 times [2020-10-15 02:11:50,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:50,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339129770] [2020-10-15 02:11:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 02:11:50,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-15 02:11:50,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:11:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:11:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:50,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:50,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-15 02:11:50,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:11:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:11:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:50,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:50,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-15 02:11:50,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:50,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:50,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 02:11:51,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:51,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-15 02:11:51,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:51,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:51,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:51,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:11:51,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:51,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:11:51,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:51,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:11:51,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:51,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 15 proven. 63 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-15 02:11:51,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339129770] [2020-10-15 02:11:51,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:51,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 02:11:51,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912306863] [2020-10-15 02:11:51,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:11:51,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:51,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:11:51,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:11:51,272 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-10-15 02:11:51,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:51,419 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-15 02:11:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 02:11:51,419 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-15 02:11:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:51,421 INFO L225 Difference]: With dead ends: 40 [2020-10-15 02:11:51,421 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 02:11:51,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:11:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 02:11:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 02:11:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 02:11:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-15 02:11:51,428 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-15 02:11:51,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:51,429 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-15 02:11:51,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:11:51,429 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-15 02:11:51,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 02:11:51,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:51,430 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:51,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:11:51,430 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:51,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:51,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1079602236, now seen corresponding path program 7 times [2020-10-15 02:11:51,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:51,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345265636] [2020-10-15 02:11:51,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 02:11:51,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-15 02:11:51,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 02:11:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:51,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:51,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:52,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:11:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:52,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:52,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-15 02:11:52,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:11:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:52,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:11:52,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:52,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:52,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-15 02:11:52,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:52,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:52,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:11:52,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:52,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:52,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:11:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:52,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:11:52,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:52,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:11:52,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:52,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:52,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:52,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 11 proven. 91 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-15 02:11:52,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345265636] [2020-10-15 02:11:52,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:52,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 02:11:52,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420562017] [2020-10-15 02:11:52,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:11:52,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:52,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:11:52,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:11:52,787 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states. [2020-10-15 02:11:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:52,917 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-15 02:11:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:11:52,918 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-15 02:11:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:52,919 INFO L225 Difference]: With dead ends: 43 [2020-10-15 02:11:52,919 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 02:11:52,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:11:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 02:11:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-15 02:11:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 02:11:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-15 02:11:52,926 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-15 02:11:52,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:52,927 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-15 02:11:52,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:11:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-15 02:11:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 02:11:52,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:52,928 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:52,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:11:52,929 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:52,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:52,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1035381916, now seen corresponding path program 8 times [2020-10-15 02:11:52,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:52,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341091895] [2020-10-15 02:11:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:11:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-15 02:11:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:11:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-15 02:11:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:53,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:53,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:53,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:53,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-15 02:11:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:11:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 02:11:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:53,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:53,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-15 02:11:53,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:53,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:11:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:53,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:54,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-15 02:11:54,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:11:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:54,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-15 02:11:54,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:54,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:54,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-15 02:11:54,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:54,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:11:54,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:54,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:11:54,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:54,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:11:54,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:54,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:11:54,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 16 proven. 117 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-15 02:11:54,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341091895] [2020-10-15 02:11:54,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:54,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 02:11:54,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223154158] [2020-10-15 02:11:54,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:11:54,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:54,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:11:54,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:11:54,732 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 14 states. [2020-10-15 02:11:54,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:54,898 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-15 02:11:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:11:54,898 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-15 02:11:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:54,900 INFO L225 Difference]: With dead ends: 46 [2020-10-15 02:11:54,900 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 02:11:54,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:11:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 02:11:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-15 02:11:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-15 02:11:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-15 02:11:54,909 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-15 02:11:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:54,909 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-15 02:11:54,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:11:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-15 02:11:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:11:54,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:54,910 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:54,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:11:54,911 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:54,911 INFO L82 PathProgramCache]: Analyzing trace with hash 952137732, now seen corresponding path program 9 times [2020-10-15 02:11:54,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:54,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712760280] [2020-10-15 02:11:54,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 02:11:55,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:11:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:55,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:55,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:55,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:11:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:55,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-15 02:11:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:11:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:56,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-15 02:11:56,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:11:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:56,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-15 02:11:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:11:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:56,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:11:56,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:56,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:56,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 02:11:56,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:56,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:56,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:11:56,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:56,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:56,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:11:56,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:56,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:11:56,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:56,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:56,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:56,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:11:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:56,905 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 12 proven. 164 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-15 02:11:56,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712760280] [2020-10-15 02:11:56,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:56,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:11:56,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002096988] [2020-10-15 02:11:56,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:11:56,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:56,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:11:56,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:11:56,909 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 16 states. [2020-10-15 02:11:57,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:57,096 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-15 02:11:57,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:11:57,096 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 67 [2020-10-15 02:11:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:57,098 INFO L225 Difference]: With dead ends: 49 [2020-10-15 02:11:57,098 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:11:57,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=424, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:11:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:11:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-15 02:11:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:11:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-15 02:11:57,109 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-15 02:11:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:57,109 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-15 02:11:57,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:11:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-15 02:11:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 02:11:57,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:57,110 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:57,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:11:57,111 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:57,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:57,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1540970204, now seen corresponding path program 10 times [2020-10-15 02:11:57,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:57,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046676200] [2020-10-15 02:11:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:11:57,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-15 02:11:57,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-15 02:11:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:11:57,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 02:11:57,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:57,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:57,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:57,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:57,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-15 02:11:57,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-15 02:11:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:11:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 02:11:57,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:58,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-15 02:11:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:11:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-15 02:11:58,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:11:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:58,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-15 02:11:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:11:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:58,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-15 02:11:58,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:11:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:59,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-15 02:11:59,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:59,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 02:11:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:11:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:59,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:11:59,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:11:59,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:59,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:59,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:11:59,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:59,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:11:59,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:59,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:59,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:59,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:59,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:59,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:11:59,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:59,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:59,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:59,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:59,493 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 30 proven. 177 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-15 02:11:59,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046676200] [2020-10-15 02:11:59,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:59,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:11:59,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513072476] [2020-10-15 02:11:59,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:11:59,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:59,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:11:59,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:11:59,500 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-10-15 02:11:59,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:59,733 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-15 02:11:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:11:59,734 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-10-15 02:11:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:59,735 INFO L225 Difference]: With dead ends: 52 [2020-10-15 02:11:59,735 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 02:11:59,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:11:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 02:11:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 02:11:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:11:59,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-15 02:11:59,750 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-15 02:11:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:59,751 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-15 02:11:59,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:11:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-15 02:11:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:11:59,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:59,752 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:59,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:11:59,753 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash -2010530748, now seen corresponding path program 11 times [2020-10-15 02:11:59,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:59,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983038380] [2020-10-15 02:11:59,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:12:00,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:12:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:00,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:00,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:12:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-15 02:12:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:00,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-15 02:12:00,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:00,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:00,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:01,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:01,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:01,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:01,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-15 02:12:01,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:01,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:01,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:01,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:01,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:01,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:01,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:01,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:01,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-15 02:12:01,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:01,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:01,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:01,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:01,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:01,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:01,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:01,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:01,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-15 02:12:01,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:01,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:01,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:01,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:01,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:01,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:01,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:01,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 02:12:01,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:01,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:01,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:01,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:02,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:12:02,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:02,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:02,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:02,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:12:02,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:02,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:02,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:02,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:12:02,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:02,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:02,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:02,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:02,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:12:02,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:02,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:02,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:12:02,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:02,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:02,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:12:02,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 25 proven. 225 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-15 02:12:02,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983038380] [2020-10-15 02:12:02,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:02,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 02:12:02,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975572412] [2020-10-15 02:12:02,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 02:12:02,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:02,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 02:12:02,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:12:02,489 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-10-15 02:12:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:02,719 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-15 02:12:02,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:12:02,720 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-15 02:12:02,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:02,721 INFO L225 Difference]: With dead ends: 55 [2020-10-15 02:12:02,721 INFO L226 Difference]: Without dead ends: 51 [2020-10-15 02:12:02,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:12:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-15 02:12:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-15 02:12:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:12:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-15 02:12:02,735 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-15 02:12:02,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:02,736 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-15 02:12:02,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 02:12:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-15 02:12:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:12:02,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:02,738 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:02,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:12:02,739 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:02,742 INFO L82 PathProgramCache]: Analyzing trace with hash -986521316, now seen corresponding path program 12 times [2020-10-15 02:12:02,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:02,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104091237] [2020-10-15 02:12:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:03,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:03,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:12:03,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:03,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-15 02:12:03,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:03,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-15 02:12:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:03,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 02:12:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:03,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:03,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:03,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:12:03,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:03,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:03,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:03,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:03,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:03,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:03,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:03,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:03,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-15 02:12:03,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:03,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-15 02:12:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:03,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-15 02:12:03,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:03,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:03,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:04,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-15 02:12:04,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:04,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:04,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:04,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-15 02:12:04,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:04,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:04,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:04,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:04,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:04,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-15 02:12:04,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:04,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 02:12:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 02:12:05,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:05,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:12:05,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:05,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:05,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:05,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:12:05,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:05,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:05,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:05,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 02:12:05,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:05,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:12:05,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:05,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:05,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:12:05,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:05,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:05,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:12:05,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:05,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:05,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 256 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-10-15 02:12:05,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104091237] [2020-10-15 02:12:05,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:05,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:12:05,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123032216] [2020-10-15 02:12:05,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:12:05,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:05,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:12:05,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:12:05,568 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-10-15 02:12:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:05,764 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-15 02:12:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:12:05,765 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-15 02:12:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:05,766 INFO L225 Difference]: With dead ends: 58 [2020-10-15 02:12:05,766 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 02:12:05,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:12:05,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 02:12:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 02:12:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:12:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-15 02:12:05,773 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-15 02:12:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:05,773 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-15 02:12:05,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:12:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-15 02:12:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:12:05,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:05,774 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:05,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:12:05,775 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:05,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:05,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1073897604, now seen corresponding path program 13 times [2020-10-15 02:12:05,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:05,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740356484] [2020-10-15 02:12:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-15 02:12:06,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-15 02:12:06,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:12:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:06,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:06,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:06,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:12:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-15 02:12:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:06,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:07,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:07,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:07,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:07,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:07,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:07,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:07,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-15 02:12:07,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:07,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:07,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:07,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:07,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:07,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:07,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:07,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:07,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:07,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:07,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:07,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-15 02:12:07,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:07,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:07,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:07,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:07,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:08,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-15 02:12:08,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:08,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:08,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:08,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:12:08,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:08,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:08,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:08,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:12:08,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:08,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:08,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:12:08,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:08,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:08,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:08,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:08,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:12:08,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:08,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:12:08,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:08,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:12:08,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:08,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:08,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:12:08,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:08,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:12:08,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 30 proven. 315 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-15 02:12:08,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740356484] [2020-10-15 02:12:08,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:08,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-15 02:12:08,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192087398] [2020-10-15 02:12:08,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:12:08,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:08,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:12:08,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:12:08,903 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states. [2020-10-15 02:12:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:09,231 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-15 02:12:09,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:12:09,232 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-15 02:12:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:09,233 INFO L225 Difference]: With dead ends: 61 [2020-10-15 02:12:09,233 INFO L226 Difference]: Without dead ends: 57 [2020-10-15 02:12:09,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:12:09,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-15 02:12:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-15 02:12:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-15 02:12:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-15 02:12:09,252 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-15 02:12:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:09,252 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-15 02:12:09,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:12:09,253 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-15 02:12:09,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:12:09,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:09,255 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:09,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:12:09,256 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:09,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1572648100, now seen corresponding path program 14 times [2020-10-15 02:12:09,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:09,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876308571] [2020-10-15 02:12:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:09,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:09,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:09,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:12:09,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 02:12:09,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:10,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:10,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:10,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:10,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:10,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:10,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:10,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:10,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-15 02:12:10,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:10,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-15 02:12:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-15 02:12:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:10,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:10,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:10,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:10,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:10,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:10,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:10,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:10,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:11,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:11,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:11,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:11,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:11,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:11,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:11,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:11,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:11,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:11,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-15 02:12:11,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:11,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:11,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:11,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:11,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:11,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:11,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-15 02:12:11,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:11,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:11,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:11,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:12,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-15 02:12:12,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:12,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:12:12,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:12,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:12,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:12:12,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:12,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:12:12,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:12,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:12:12,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:12,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:12,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:12:12,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:12,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:12,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:12:12,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:12,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:12:12,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:12,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:12,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 89 proven. 317 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2020-10-15 02:12:12,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876308571] [2020-10-15 02:12:12,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:12,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 02:12:12,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405960254] [2020-10-15 02:12:12,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 02:12:12,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:12,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 02:12:12,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:12:12,724 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 20 states. [2020-10-15 02:12:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:12,993 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-15 02:12:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:12:12,993 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-10-15 02:12:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:12,994 INFO L225 Difference]: With dead ends: 64 [2020-10-15 02:12:12,994 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:12:12,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:12:13,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:12:13,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-15 02:12:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-15 02:12:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-15 02:12:13,005 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-15 02:12:13,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:13,005 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-15 02:12:13,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 02:12:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-15 02:12:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:12:13,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:13,007 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:13,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:12:13,007 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:13,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:13,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1584030916, now seen corresponding path program 15 times [2020-10-15 02:12:13,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:13,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681511042] [2020-10-15 02:12:13,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:13,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:13,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:12:13,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:13,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:13,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:13,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:13,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:13,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:12:13,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:14,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:14,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:12:14,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:14,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:14,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:14,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:14,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:14,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:14,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:15,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-15 02:12:15,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:15,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:15,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-15 02:12:15,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:12:15,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:15,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:15,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:16,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:12:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:16,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:16,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:16,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:12:16,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:16,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:16,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:12:16,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:16,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:12:16,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:16,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:16,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:12:16,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 50 proven. 401 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-15 02:12:16,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681511042] [2020-10-15 02:12:16,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:16,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 02:12:16,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178474117] [2020-10-15 02:12:16,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:12:16,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:16,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:12:16,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:12:16,369 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 22 states. [2020-10-15 02:12:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:16,648 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-15 02:12:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:12:16,649 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2020-10-15 02:12:16,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:16,651 INFO L225 Difference]: With dead ends: 67 [2020-10-15 02:12:16,651 INFO L226 Difference]: Without dead ends: 63 [2020-10-15 02:12:16,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=499, Invalid=907, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:12:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-15 02:12:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-15 02:12:16,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-15 02:12:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-15 02:12:16,657 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-15 02:12:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:16,658 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-15 02:12:16,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:12:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-15 02:12:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:12:16,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:16,659 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:16,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:12:16,660 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:16,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:16,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1066046876, now seen corresponding path program 16 times [2020-10-15 02:12:16,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:16,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070471710] [2020-10-15 02:12:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:17,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:17,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:12:17,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-15 02:12:17,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:17,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:17,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:17,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-15 02:12:17,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:17,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:17,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:12:17,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:17,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:18,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:18,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:18,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:12:18,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:18,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:18,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:18,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:18,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-15 02:12:18,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:18,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:18,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:18,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-15 02:12:18,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:18,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:18,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:19,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-15 02:12:19,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:19,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:19,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:19,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:19,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:19,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 02:12:19,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:19,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:19,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:19,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:12:19,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:19,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:19,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:12:19,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:19,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:20,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:20,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:12:20,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:20,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:20,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:20,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:20,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:20,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:20,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:12:20,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:20,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:20,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:20,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:20,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:20,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:20,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:20,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:20,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:20,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:12:20,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:20,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 102 proven. 441 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2020-10-15 02:12:20,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070471710] [2020-10-15 02:12:20,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:20,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 02:12:20,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768959752] [2020-10-15 02:12:20,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 02:12:20,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:20,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 02:12:20,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:12:20,168 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-10-15 02:12:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:20,456 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-15 02:12:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:12:20,456 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 109 [2020-10-15 02:12:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:20,458 INFO L225 Difference]: With dead ends: 70 [2020-10-15 02:12:20,458 INFO L226 Difference]: Without dead ends: 66 [2020-10-15 02:12:20,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560 [2020-10-15 02:12:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-15 02:12:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-15 02:12:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-15 02:12:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-15 02:12:20,466 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-15 02:12:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:20,466 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-15 02:12:20,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 02:12:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-15 02:12:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:12:20,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:20,468 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:20,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:12:20,468 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:20,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1300351236, now seen corresponding path program 17 times [2020-10-15 02:12:20,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:20,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868381016] [2020-10-15 02:12:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:21,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:12:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-15 02:12:21,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:21,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:21,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:21,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:21,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:21,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:21,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:21,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:21,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:21,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:21,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:21,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-15 02:12:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:21,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:21,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:21,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-15 02:12:21,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:21,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:12:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:21,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:22,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:22,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:22,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:12:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:22,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:22,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:22,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:22,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-15 02:12:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:22,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:12:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:22,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:23,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:23,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-15 02:12:23,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:23,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:23,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:23,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:23,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:23,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:23,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:23,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:23,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:23,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-15 02:12:23,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:23,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:23,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:23,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:24,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-15 02:12:24,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:24,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-15 02:12:24,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-15 02:12:24,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:24,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:24,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:24,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:12:24,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:24,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:24,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:12:24,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:24,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:24,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:12:24,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:24,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:24,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:24,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:24,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 86 proven. 525 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-10-15 02:12:24,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868381016] [2020-10-15 02:12:24,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:24,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 02:12:24,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023435850] [2020-10-15 02:12:24,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 02:12:24,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:24,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 02:12:24,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:12:24,864 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 24 states. [2020-10-15 02:12:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:25,176 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-15 02:12:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:12:25,176 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 115 [2020-10-15 02:12:25,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:25,178 INFO L225 Difference]: With dead ends: 73 [2020-10-15 02:12:25,178 INFO L226 Difference]: Without dead ends: 69 [2020-10-15 02:12:25,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1108, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:12:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-15 02:12:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-15 02:12:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-15 02:12:25,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-15 02:12:25,186 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-15 02:12:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:25,187 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-15 02:12:25,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 02:12:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-15 02:12:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 02:12:25,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:25,197 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:25,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:12:25,197 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:25,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:25,198 INFO L82 PathProgramCache]: Analyzing trace with hash 227065820, now seen corresponding path program 18 times [2020-10-15 02:12:25,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:25,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927064876] [2020-10-15 02:12:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:25,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:25,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:25,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 02:12:25,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-15 02:12:25,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:25,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:25,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:25,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:25,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:25,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:25,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:26,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:26,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 02:12:26,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-15 02:12:26,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:26,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:26,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:26,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:26,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-15 02:12:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:27,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:12:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:27,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-15 02:12:27,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:12:27,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:28,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:12:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:28,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:29,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:29,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:29,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-15 02:12:29,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:29,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:29,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-15 02:12:29,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:29,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:29,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:29,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:12:29,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:29,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:12:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:29,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:29,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:12:29,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:29,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:29,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:12:29,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:29,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:29,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:29,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:29,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:29,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 80 proven. 586 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-10-15 02:12:30,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927064876] [2020-10-15 02:12:30,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:30,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 02:12:30,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697061749] [2020-10-15 02:12:30,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 02:12:30,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:30,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 02:12:30,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:12:30,006 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2020-10-15 02:12:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:30,343 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-15 02:12:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:12:30,344 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-10-15 02:12:30,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:30,345 INFO L225 Difference]: With dead ends: 76 [2020-10-15 02:12:30,345 INFO L226 Difference]: Without dead ends: 72 [2020-10-15 02:12:30,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:12:30,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-15 02:12:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-15 02:12:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 02:12:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-15 02:12:30,354 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-15 02:12:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:30,354 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-15 02:12:30,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 02:12:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-15 02:12:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-15 02:12:30,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:30,356 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:30,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:12:30,356 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:30,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:30,357 INFO L82 PathProgramCache]: Analyzing trace with hash -479687356, now seen corresponding path program 19 times [2020-10-15 02:12:30,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:30,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918335014] [2020-10-15 02:12:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:30,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:31,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:12:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:12:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:31,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:31,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:31,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:31,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:31,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:31,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:31,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:31,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:31,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 02:12:31,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-10-15 02:12:31,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:31,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:12:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:12:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-15 02:12:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:31,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:31,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:32,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-15 02:12:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-15 02:12:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:32,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:32,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:32,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:12:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:32,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-15 02:12:32,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:32,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:33,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:33,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:12:33,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:33,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:33,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:33,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:33,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:33,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:33,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:12:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:33,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:33,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:33,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:33,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:33,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-15 02:12:33,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:33,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-15 02:12:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:33,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:33,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:34,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:34,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-15 02:12:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:34,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:34,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:34,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:34,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:34,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:34,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-15 02:12:34,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:34,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:34,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:12:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:34,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:34,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:34,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:34,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-15 02:12:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:34,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:34,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:34,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:34,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-15 02:12:34,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:34,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-15 02:12:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:35,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-15 02:12:35,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:35,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:12:35,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:35,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:35,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:12:35,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:12:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:35,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:35,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:12:35,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:12:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:12:35,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:12:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:35,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:35,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:12:35,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:35,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:12:35,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:35,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:12:35,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:12:35,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:35,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:12:35,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:12:35,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:35,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:12:35,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:12:35,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:35,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:12:35,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:35,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:12:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:35,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:35,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:35,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:35,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:12:35,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:35,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:35,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:12:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 30 proven. 591 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-15 02:12:35,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918335014] [2020-10-15 02:12:35,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:35,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-15 02:12:35,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233876657] [2020-10-15 02:12:35,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 02:12:35,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:35,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 02:12:35,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:12:35,805 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states. [2020-10-15 02:12:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:36,153 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-15 02:12:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:12:36,154 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2020-10-15 02:12:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:36,156 INFO L225 Difference]: With dead ends: 79 [2020-10-15 02:12:36,156 INFO L226 Difference]: Without dead ends: 75 [2020-10-15 02:12:36,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:12:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-15 02:12:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-15 02:12:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-15 02:12:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-15 02:12:36,161 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-15 02:12:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:36,162 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-15 02:12:36,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 02:12:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-15 02:12:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-15 02:12:36,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:36,164 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:36,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 02:12:36,164 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:36,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1598174692, now seen corresponding path program 20 times [2020-10-15 02:12:36,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:36,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357656564] [2020-10-15 02:12:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 02:12:36,186 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 02:12:36,187 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 02:12:36,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 02:12:36,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:12:36 BoogieIcfgContainer [2020-10-15 02:12:36,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:12:36,216 INFO L168 Benchmark]: Toolchain (without parser) took 50589.49 ms. Allocated memory was 145.2 MB in the beginning and 1.0 GB in the end (delta: 879.8 MB). Free memory was 102.1 MB in the beginning and 462.7 MB in the end (delta: -360.6 MB). Peak memory consumption was 519.2 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,217 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.21 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 92.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,218 INFO L168 Benchmark]: Boogie Preprocessor took 22.38 ms. Allocated memory is still 145.2 MB. Free memory was 92.6 MB in the beginning and 91.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,218 INFO L168 Benchmark]: RCFGBuilder took 316.21 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 170.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,219 INFO L168 Benchmark]: TraceAbstraction took 50013.74 ms. Allocated memory was 202.4 MB in the beginning and 1.0 GB in the end (delta: 822.6 MB). Free memory was 169.4 MB in the beginning and 462.7 MB in the end (delta: -293.3 MB). Peak memory consumption was 529.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:36,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 119.8 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 232.21 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 92.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.38 ms. Allocated memory is still 145.2 MB. Free memory was 92.6 MB in the beginning and 91.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 316.21 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 170.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 50013.74 ms. Allocated memory was 202.4 MB in the beginning and 1.0 GB in the end (delta: 822.6 MB). Free memory was 169.4 MB in the beginning and 462.7 MB in the end (delta: -293.3 MB). Peak memory consumption was 529.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int a = 20; [L13] int b = 0; [L14] CALL, EXPR sum(a, b) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND TRUE n <= 0 [L5] return m + n; [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L14] RET, EXPR sum(a, b) [L14] int result = sum(a, b); [L15] COND TRUE result == a + b [L16] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 49.9s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 816 SDslu, 1148 SDs, 0 SdLazy, 807 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 483 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2669 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 44.9s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 305820 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3228/7600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...