/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_25x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:12:25,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:12:25,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:12:25,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:12:25,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:12:25,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:12:25,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:12:25,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:12:25,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:12:25,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:12:25,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:12:25,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:12:25,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:12:25,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:12:25,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:12:25,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:12:25,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:12:25,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:12:25,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:12:25,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:12:25,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:12:25,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:12:25,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:12:25,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:12:25,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:12:25,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:12:25,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:12:25,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:12:25,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:12:25,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:12:25,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:12:25,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:12:25,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:12:25,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:12:25,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:12:25,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:12:25,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:12:25,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:12:25,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:12:25,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:12:25,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:12:25,223 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 [2020-09-25 03:12:25,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:12:25,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:12:25,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:12:25,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:12:25,252 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:12:25,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:12:25,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:12:25,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:12:25,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:12:25,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:12:25,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:12:25,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:12:25,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:12:25,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:12:25,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:12:25,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:12:25,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:12:25,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:12:25,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:12:25,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:12:25,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:12:25,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:12:25,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:12:25,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:12:25,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:12:25,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:12:25,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:12:25,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:12:25,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:12:25,257 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:12:25,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:12:25,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:12:25,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:12:25,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:12:25,752 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:12:25,753 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_25x0-2.c [2020-09-25 03:12:25,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39c0c95/719d2fabb5ae4e2da99dd5a022dc9cee/FLAG22fba9487 [2020-09-25 03:12:26,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:12:26,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_25x0-2.c [2020-09-25 03:12:26,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39c0c95/719d2fabb5ae4e2da99dd5a022dc9cee/FLAG22fba9487 [2020-09-25 03:12:26,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39c0c95/719d2fabb5ae4e2da99dd5a022dc9cee [2020-09-25 03:12:26,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:12:26,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:12:26,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:12:26,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:12:26,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:12:26,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:12:26" (1/1) ... [2020-09-25 03:12:26,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b89a561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:26, skipping insertion in model container [2020-09-25 03:12:26,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:12:26" (1/1) ... [2020-09-25 03:12:26,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:12:26,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:12:27,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:12:27,049 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:12:27,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:12:27,079 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:12:27,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27 WrapperNode [2020-09-25 03:12:27,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:12:27,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:12:27,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:12:27,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:12:27,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (1/1) ... [2020-09-25 03:12:27,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:12:27,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:12:27,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:12:27,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:12:27,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (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 [2020-09-25 03:12:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:12:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:12:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-25 03:12:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:12:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:12:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-25 03:12:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:12:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:12:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:12:27,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:12:27,470 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:12:27,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:12:27 BoogieIcfgContainer [2020-09-25 03:12:27,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:12:27,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:12:27,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:12:27,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:12:27,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:12:26" (1/3) ... [2020-09-25 03:12:27,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4e04fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:12:27, skipping insertion in model container [2020-09-25 03:12:27,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:12:27" (2/3) ... [2020-09-25 03:12:27,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4e04fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:12:27, skipping insertion in model container [2020-09-25 03:12:27,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:12:27" (3/3) ... [2020-09-25 03:12:27,484 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_25x0-2.c [2020-09-25 03:12:27,495 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:12:27,507 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:12:27,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:12:27,551 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:12:27,551 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:12:27,552 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:12:27,552 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:12:27,552 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:12:27,552 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:12:27,552 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:12:27,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:12:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 03:12:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 03:12:27,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:27,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:27,580 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:27,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:27,586 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-25 03:12:27,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:27,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783634442] [2020-09-25 03:12:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:27,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:27,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:27,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:12:27,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:27,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 03:12:27,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:12:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:12:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:12:28,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:28,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:28,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:28,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:28,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:12:28,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:28,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:28,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:28,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:28,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:28,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:28,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:28,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:12:28,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:28,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:12:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:12:28,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783634442] [2020-09-25 03:12:28,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:12:28,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:12:28,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235267957] [2020-09-25 03:12:28,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:12:28,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:28,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:12:28,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:12:28,303 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2020-09-25 03:12:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:28,480 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-25 03:12:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:12:28,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-09-25 03:12:28,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:28,494 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:12:28,494 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 03:12:28,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:12:28,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 03:12:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 03:12:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 03:12:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-25 03:12:28,556 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-25 03:12:28,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:28,556 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-25 03:12:28,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:12:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-25 03:12:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 03:12:28,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:28,559 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:28,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:12:28,560 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:28,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:28,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-25 03:12:28,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:28,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104946303] [2020-09-25 03:12:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:29,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 03:12:29,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 03:12:29,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:12:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 03:12:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:12:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:12:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 03:12:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:29,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:29,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:29,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:29,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:29,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:12:29,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:29,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:12:29,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104946303] [2020-09-25 03:12:29,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:29,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:12:29,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32533246] [2020-09-25 03:12:29,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:12:29,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:29,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:12:29,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:12:29,614 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 10 states. [2020-09-25 03:12:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:29,771 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-25 03:12:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:12:29,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 03:12:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:29,773 INFO L225 Difference]: With dead ends: 36 [2020-09-25 03:12:29,774 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 03:12:29,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:12:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 03:12:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 03:12:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 03:12:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 03:12:29,782 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-25 03:12:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:29,783 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 03:12:29,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:12:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 03:12:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 03:12:29,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:29,785 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:29,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:12:29,786 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:29,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-25 03:12:29,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:29,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320889059] [2020-09-25 03:12:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:29,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:30,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:12:30,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:30,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 03:12:30,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:30,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:12:30,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:30,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 03:12:30,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:30,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:30,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:30,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:30,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:30,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:30,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:30,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:30,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:12:30,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-25 03:12:30,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:12:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:30,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:31,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:31,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:31,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 03:12:31,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:31,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:31,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:31,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:31,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:31,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:31,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:31,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:12:31,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:12:31,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320889059] [2020-09-25 03:12:31,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:31,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:12:31,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232961197] [2020-09-25 03:12:31,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:12:31,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:31,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:12:31,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:12:31,232 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 13 states. [2020-09-25 03:12:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:31,481 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-25 03:12:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:12:31,481 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2020-09-25 03:12:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:31,483 INFO L225 Difference]: With dead ends: 41 [2020-09-25 03:12:31,483 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 03:12:31,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:12:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 03:12:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 03:12:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 03:12:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-25 03:12:31,492 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-25 03:12:31,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:31,492 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-25 03:12:31,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:12:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-25 03:12:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-25 03:12:31,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:31,494 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:31,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:12:31,495 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:31,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-25 03:12:31,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:31,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231350227] [2020-09-25 03:12:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:31,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:32,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:12:32,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-09-25 03:12:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:12:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:32,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:12:32,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:32,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:32,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:32,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:12:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:32,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:32,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:32,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:33,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:33,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:12:33,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:33,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-09-25 03:12:33,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:33,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:33,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:12:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 03:12:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:12:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:33,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:33,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:33,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:33,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 03:12:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:33,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:33,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:33,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:33,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:12:33,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:33,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 03:12:33,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231350227] [2020-09-25 03:12:33,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:33,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:12:33,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698813437] [2020-09-25 03:12:33,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:12:33,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:33,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:12:33,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:12:33,568 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 15 states. [2020-09-25 03:12:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:33,900 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 03:12:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:12:33,900 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-09-25 03:12:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:33,902 INFO L225 Difference]: With dead ends: 46 [2020-09-25 03:12:33,902 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 03:12:33,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:12:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 03:12:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 03:12:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 03:12:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-25 03:12:33,912 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-25 03:12:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:33,912 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-25 03:12:33,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:12:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-25 03:12:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:12:33,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:33,914 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:33,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:12:33,915 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-25 03:12:33,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:33,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546985957] [2020-09-25 03:12:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:33,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:34,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:35,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:35,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:12:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1963 [2020-09-25 03:12:35,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 03:12:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 03:12:35,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:35,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:35,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:35,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:35,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:35,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:35,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:35,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:37,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:37,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:37,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1478 [2020-09-25 03:12:37,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:12:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:37,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:37,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:12:37,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 03:12:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:37,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:38,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:12:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 03:12:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:12:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:38,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:38,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:38,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:38,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 03:12:38,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:38,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:38,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:38,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:12:38,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:38,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:12:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 03:12:38,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546985957] [2020-09-25 03:12:38,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:38,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:12:38,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755625572] [2020-09-25 03:12:38,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:12:38,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:38,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:12:38,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:12:38,274 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 17 states. [2020-09-25 03:12:38,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:38,640 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 03:12:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 03:12:38,641 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 54 [2020-09-25 03:12:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:38,644 INFO L225 Difference]: With dead ends: 51 [2020-09-25 03:12:38,644 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 03:12:38,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 03:12:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 03:12:38,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 03:12:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 03:12:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-25 03:12:38,661 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-25 03:12:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:38,662 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-25 03:12:38,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:12:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-25 03:12:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 03:12:38,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:38,668 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:38,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:12:38,668 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:38,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:38,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-25 03:12:38,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:38,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12598179] [2020-09-25 03:12:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:38,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:42,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:42,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 03:12:42,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:42,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3597 [2020-09-25 03:12:42,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 03:12:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 03:12:42,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:42,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:42,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:42,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:42,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:42,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:42,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:42,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:44,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:44,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 03:12:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:44,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2079 [2020-09-25 03:12:44,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:12:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 03:12:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:44,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:44,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:44,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:44,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:44,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 03:12:44,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:12:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:44,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:44,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:12:45,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 03:12:45,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:45,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:45,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:12:45,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 03:12:45,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:12:45,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:45,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:45,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 03:12:45,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:12:45,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:45,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:45,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:45,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:12:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 03:12:45,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12598179] [2020-09-25 03:12:45,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:45,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 03:12:45,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976928331] [2020-09-25 03:12:45,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 03:12:45,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:45,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 03:12:45,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:12:45,732 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 19 states. [2020-09-25 03:12:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:46,177 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-25 03:12:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 03:12:46,177 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 63 [2020-09-25 03:12:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:46,181 INFO L225 Difference]: With dead ends: 56 [2020-09-25 03:12:46,181 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 03:12:46,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 03:12:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 03:12:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 03:12:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 03:12:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 03:12:46,196 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-25 03:12:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:46,196 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 03:12:46,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 03:12:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 03:12:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 03:12:46,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:46,199 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:46,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:12:46,199 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:46,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:46,202 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-25 03:12:46,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:46,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366889178] [2020-09-25 03:12:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:46,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:49,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:49,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 03:12:49,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3745 [2020-09-25 03:12:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 03:12:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:12:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:50,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:50,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:50,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:50,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:52,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:52,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 03:12:52,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2681 [2020-09-25 03:12:52,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:12:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:12:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:12:52,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:52,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:53,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:12:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 03:12:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:53,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:12:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 03:12:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:12:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:12:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:53,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:53,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:53,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:53,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:12:53,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:53,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 03:12:53,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:53,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:12:53,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:53,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:53,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:54,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:54,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:12:54,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 03:12:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:12:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:12:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:54,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:54,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:12:54,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:12:54,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:12:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:12:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:12:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:54,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:54,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:54,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:12:54,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:12:54,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:54,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:12:54,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:54,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:12:54,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 101 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-25 03:12:54,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366889178] [2020-09-25 03:12:54,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:12:54,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 03:12:54,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891627862] [2020-09-25 03:12:54,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 03:12:54,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:12:54,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 03:12:54,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:12:54,287 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 03:12:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:12:54,699 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-25 03:12:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 03:12:54,699 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 03:12:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:12:54,701 INFO L225 Difference]: With dead ends: 61 [2020-09-25 03:12:54,701 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 03:12:54,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=358, Invalid=1534, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 03:12:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 03:12:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-25 03:12:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-25 03:12:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-25 03:12:54,709 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-25 03:12:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:12:54,710 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-25 03:12:54,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 03:12:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-25 03:12:54,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-25 03:12:54,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:12:54,711 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:12:54,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:12:54,712 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:12:54,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:12:54,712 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-25 03:12:54,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:12:54,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650190248] [2020-09-25 03:12:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:12:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:54,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-25 03:12:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4586 [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 03:12:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:12:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:59,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:59,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:12:59,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:12:59,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:12:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:12:59,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:12:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:12:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:12:59,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:12:59,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:12:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:12:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:12:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:12:59,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:03,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:03,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 03:13:03,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3951 [2020-09-25 03:13:03,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:13:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:03,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:13:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:03,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:03,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:04,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:04,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:13:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:04,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:04,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 03:13:04,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:04,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-25 03:13:04,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:13:04,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:04,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 03:13:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:04,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:05,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:05,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:13:05,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:13:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:05,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:05,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:05,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:13:05,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 03:13:05,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:13:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:13:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:05,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:05,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:05,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:05,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:13:05,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:13:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:05,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 03:13:05,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 03:13:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:13:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:13:05,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:05,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:05,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:05,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:13:05,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:05,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:13:05,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:13:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:13:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:13:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 11 proven. 133 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 03:13:05,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650190248] [2020-09-25 03:13:05,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:13:05,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:13:05,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726853988] [2020-09-25 03:13:05,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:13:05,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:13:05,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:13:05,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:13:05,767 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 23 states. [2020-09-25 03:13:06,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:13:06,294 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-25 03:13:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 03:13:06,295 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 81 [2020-09-25 03:13:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:13:06,298 INFO L225 Difference]: With dead ends: 66 [2020-09-25 03:13:06,298 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 03:13:06,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=445, Invalid=1811, Unknown=0, NotChecked=0, Total=2256 [2020-09-25 03:13:06,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 03:13:06,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 03:13:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 03:13:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-25 03:13:06,307 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-25 03:13:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:13:06,307 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-25 03:13:06,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:13:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-25 03:13:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 03:13:06,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:13:06,309 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:13:06,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:13:06,309 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:13:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:13:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-25 03:13:06,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:13:06,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907161227] [2020-09-25 03:13:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:13:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:06,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:06,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:11,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:11,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:13:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 03:13:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:11,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:13:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:11,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:11,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:13:11,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:11,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:13:11,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:13:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:11,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:13:11,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:11,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:13:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:11,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:16,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:16,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 03:13:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:16,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:17,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-25 03:13:17,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 847 [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 03:13:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:17,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:13:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:13:17,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 03:13:17,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:13:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-09-25 03:13:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:13:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 03:13:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:13:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:13:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:13:17,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:13:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:13:18,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking...