/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=SHALLOWEST --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/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:48:43,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:48:43,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:48:43,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:48:43,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:48:43,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:48:43,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:48:43,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:48:43,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:48:43,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:48:43,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:48:43,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:48:43,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:48:43,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:48:43,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:48:43,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:48:43,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:48:43,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:48:43,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:48:43,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:48:43,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:48:43,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:48:43,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:48:43,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:48:43,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:48:43,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:48:43,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:48:43,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:48:43,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:48:43,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:48:43,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:48:43,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:48:43,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:48:43,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:48:43,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:48:43,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:48:43,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:48:43,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:48:43,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:48:43,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:48:43,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:48:43,364 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 [2020-09-24 23:48:43,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:48:43,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:48:43,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:48:43,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:48:43,419 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:48:43,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:48:43,420 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:48:43,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:48:43,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:48:43,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:48:43,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:48:43,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:48:43,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:48:43,422 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:48:43,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:48:43,423 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:48:43,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:48:43,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:48:43,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:48:43,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:48:43,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:48:43,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:48:43,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:48:43,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:48:43,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:48:43,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:48:43,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:48:43,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:48:43,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:48:43,426 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:48:43,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:48:43,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:48:43,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:48:43,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:48:43,943 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:48:43,944 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-24 23:48:44,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91c62c255/db17d1d4dc7c48aeab7cd74f143c9d64/FLAG7a20de0ad [2020-09-24 23:48:44,557 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:48:44,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-09-24 23:48:44,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91c62c255/db17d1d4dc7c48aeab7cd74f143c9d64/FLAG7a20de0ad [2020-09-24 23:48:44,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91c62c255/db17d1d4dc7c48aeab7cd74f143c9d64 [2020-09-24 23:48:44,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:48:44,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:48:44,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:44,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:48:44,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:48:44,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:44" (1/1) ... [2020-09-24 23:48:44,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1b1e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:44, skipping insertion in model container [2020-09-24 23:48:44,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:48:44" (1/1) ... [2020-09-24 23:48:44,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:48:44,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:48:45,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:45,199 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:48:45,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:48:45,236 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:48:45,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45 WrapperNode [2020-09-24 23:48:45,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:48:45,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:48:45,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:48:45,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:48:45,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... [2020-09-24 23:48:45,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:48:45,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:48:45,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:48:45,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:48:45,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:48:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:48:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:48:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 23:48:45,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:48:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 23:48:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:48:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 23:48:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:48:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:48:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:48:45,606 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:48:45,606 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:48:45,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:45 BoogieIcfgContainer [2020-09-24 23:48:45,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:48:45,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:48:45,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:48:45,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:48:45,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:48:44" (1/3) ... [2020-09-24 23:48:45,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103f2026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:45, skipping insertion in model container [2020-09-24 23:48:45,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:48:45" (2/3) ... [2020-09-24 23:48:45,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103f2026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:48:45, skipping insertion in model container [2020-09-24 23:48:45,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:48:45" (3/3) ... [2020-09-24 23:48:45,622 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-09-24 23:48:45,633 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:48:45,643 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:48:45,664 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:48:45,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:48:45,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:48:45,695 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:48:45,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:48:45,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:48:45,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:48:45,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:48:45,696 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:48:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 23:48:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:48:45,727 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:45,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:45,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:45,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 23:48:45,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:45,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631540384] [2020-09-24 23:48:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:45,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:45,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:48:45,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:45,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 23:48:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:45,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:48:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 23:48:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:48:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:46,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:46,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:48:46,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:46,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:48:46,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631540384] [2020-09-24 23:48:46,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:48:46,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:48:46,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99761972] [2020-09-24 23:48:46,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:48:46,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:46,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:48:46,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:48:46,146 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 23:48:46,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:46,255 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 23:48:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:48:46,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:48:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:46,270 INFO L225 Difference]: With dead ends: 37 [2020-09-24 23:48:46,271 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 23:48:46,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:48:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 23:48:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 23:48:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 23:48:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 23:48:46,324 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 23:48:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:46,325 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 23:48:46,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:48:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 23:48:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 23:48:46,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:46,328 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:46,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:48:46,329 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:46,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:46,330 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 23:48:46,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:46,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605930345] [2020-09-24 23:48:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:46,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 23:48:46,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:46,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 23:48:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 23:48:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:46,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:46,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:46,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:46,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:46,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 23:48:46,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:46,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:46,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:46,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:46,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:48:46,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:46,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:48:46,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605930345] [2020-09-24 23:48:46,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:46,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:48:46,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679988429] [2020-09-24 23:48:46,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:48:46,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:46,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:48:46,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:48:46,919 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 23:48:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:47,012 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 23:48:47,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:48:47,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 23:48:47,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:47,014 INFO L225 Difference]: With dead ends: 31 [2020-09-24 23:48:47,014 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 23:48:47,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:48:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 23:48:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 23:48:47,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 23:48:47,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 23:48:47,024 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 23:48:47,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:47,024 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 23:48:47,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:48:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 23:48:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 23:48:47,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:47,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:47,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:48:47,027 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:47,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 23:48:47,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:47,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472238816] [2020-09-24 23:48:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 23:48:47,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-24 23:48:47,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 23:48:47,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:48:47,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:47,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:47,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:48:47,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:47,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:48:47,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:47,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:47,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:47,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:47,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:47,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:48:47,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:48:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:48:47,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472238816] [2020-09-24 23:48:47,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:47,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:48:47,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166868303] [2020-09-24 23:48:47,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:48:47,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:47,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:48:47,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:48:47,634 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 23:48:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:47,728 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 23:48:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:48:47,729 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 23:48:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:47,730 INFO L225 Difference]: With dead ends: 35 [2020-09-24 23:48:47,730 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:48:47,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:48:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:48:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 23:48:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 23:48:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 23:48:47,738 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 23:48:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:47,739 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 23:48:47,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:48:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 23:48:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 23:48:47,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:47,741 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:47,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:48:47,741 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 23:48:47,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:47,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885504087] [2020-09-24 23:48:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:47,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 23:48:48,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 23:48:48,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:48,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 23:48:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:48:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:48,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:48,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:48:48,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:48,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:48,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-24 23:48:48,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:48,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:48,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 23:48:48,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:48,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:48,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 23:48:48,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:48,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:48,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:48,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:48:48,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:48,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 23:48:48,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885504087] [2020-09-24 23:48:48,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:48,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 23:48:48,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163394603] [2020-09-24 23:48:48,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:48:48,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:48,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:48:48,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:48:48,638 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 23:48:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:48,774 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 23:48:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:48:48,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 23:48:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:48,776 INFO L225 Difference]: With dead ends: 39 [2020-09-24 23:48:48,776 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 23:48:48,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:48,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 23:48:48,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 23:48:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 23:48:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 23:48:48,785 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 23:48:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:48,785 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 23:48:48,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:48:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 23:48:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 23:48:48,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:48,787 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:48,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:48:48,788 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:48,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 23:48:48,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:48,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063148248] [2020-09-24 23:48:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:48,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 23:48:49,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-24 23:48:49,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:48:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 23:48:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:48:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:49,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:49,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:49,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-24 23:48:49,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:49,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:49,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 23:48:49,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 23:48:49,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:49,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:49,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 23:48:49,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:49,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:49,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:49,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:49,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:48:49,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:49,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 23:48:49,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063148248] [2020-09-24 23:48:49,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:49,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:48:49,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136763485] [2020-09-24 23:48:49,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:48:49,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:49,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:48:49,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:48:49,900 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 23:48:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:50,174 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 23:48:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:48:50,175 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 23:48:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:50,176 INFO L225 Difference]: With dead ends: 43 [2020-09-24 23:48:50,177 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:48:50,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:48:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:48:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 23:48:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 23:48:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 23:48:50,199 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 23:48:50,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:50,199 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 23:48:50,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:48:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 23:48:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 23:48:50,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:50,207 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:50,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:48:50,208 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:50,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 23:48:50,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:50,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075729873] [2020-09-24 23:48:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:50,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:50,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:50,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:48:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-24 23:48:50,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:48:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 23:48:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:48:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:50,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:50,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:50,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:50,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:51,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-24 23:48:51,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:51,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:48:51,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:51,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 23:48:51,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:51,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 23:48:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:51,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 23:48:51,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:51,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:51,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:51,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 23:48:51,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:51,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:48:51,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:51,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:51,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:51,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:51,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:51,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:51,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:48:51,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 23:48:51,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075729873] [2020-09-24 23:48:51,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:51,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:48:51,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579453469] [2020-09-24 23:48:51,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:48:51,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:51,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:48:51,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:51,947 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 23:48:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:52,213 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 23:48:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:48:52,214 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 23:48:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:52,215 INFO L225 Difference]: With dead ends: 47 [2020-09-24 23:48:52,215 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 23:48:52,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:48:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 23:48:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 23:48:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 23:48:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 23:48:52,224 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 23:48:52,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:52,224 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 23:48:52,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:48:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 23:48:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 23:48:52,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:52,226 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:52,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:48:52,227 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:52,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:52,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 23:48:52,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:52,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633803765] [2020-09-24 23:48:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:48:52,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-24 23:48:52,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:48:52,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 23:48:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:48:52,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:52,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:52,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:52,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:53,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:53,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:53,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:53,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-24 23:48:53,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:53,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:53,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:53,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:53,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:53,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 23:48:53,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:53,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:53,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:53,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:53,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:53,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:53,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:48:53,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:53,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:53,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:53,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:53,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:54,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 23:48:54,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:54,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:54,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:54,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:48:54,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:54,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:54,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:54,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:54,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 23:48:54,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:54,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:54,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:54,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:48:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 23:48:54,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633803765] [2020-09-24 23:48:54,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:54,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 23:48:54,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776386271] [2020-09-24 23:48:54,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 23:48:54,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:54,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 23:48:54,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:48:54,362 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 23:48:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:54,696 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 23:48:54,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 23:48:54,697 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 23:48:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:54,698 INFO L225 Difference]: With dead ends: 51 [2020-09-24 23:48:54,699 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:48:54,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 23:48:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:48:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 23:48:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 23:48:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 23:48:54,706 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 23:48:54,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:54,707 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 23:48:54,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 23:48:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 23:48:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 23:48:54,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:54,709 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:54,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:48:54,709 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:54,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:54,710 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 23:48:54,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:54,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534046285] [2020-09-24 23:48:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:55,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:55,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 23:48:55,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-24 23:48:55,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:48:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 23:48:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 23:48:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:55,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:55,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:55,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:55,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:55,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:48:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:55,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-09-24 23:48:55,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:55,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:48:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:48:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:55,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:48:56,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-09-24 23:48:56,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:48:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:48:56,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:56,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:56,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-24 23:48:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:48:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:48:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:56,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:48:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 23:48:56,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:48:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:56,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:56,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:56,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:56,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:48:56,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 23:48:56,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:48:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:57,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:48:57,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:48:57,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:48:57,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:48:57,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:48:57,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:48:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:57,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:57,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:57,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:57,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:57,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:48:57,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:57,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:48:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:57,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:48:57,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 23:48:57,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534046285] [2020-09-24 23:48:57,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:57,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 23:48:57,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864590924] [2020-09-24 23:48:57,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 23:48:57,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:57,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 23:48:57,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:48:57,351 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 23:48:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:57,681 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 23:48:57,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 23:48:57,682 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 23:48:57,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:57,683 INFO L225 Difference]: With dead ends: 55 [2020-09-24 23:48:57,683 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 23:48:57,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:48:57,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 23:48:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 23:48:57,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 23:48:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 23:48:57,691 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 23:48:57,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:57,691 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 23:48:57,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 23:48:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 23:48:57,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 23:48:57,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:57,693 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:57,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:48:57,693 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:57,694 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 23:48:57,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:57,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059652814] [2020-09-24 23:48:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:58,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:58,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 23:48:58,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-09-24 23:48:58,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 23:48:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 23:48:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:48:58,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:58,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:58,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:58,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:58,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:48:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:58,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:59,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:59,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:48:59,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:59,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-09-24 23:48:59,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:48:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:59,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:48:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:59,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:59,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:59,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:59,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:48:59,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-24 23:48:59,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:59,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:48:59,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:59,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:48:59,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:59,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:48:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:59,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:00,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-24 23:49:00,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:00,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:00,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 23:49:00,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:00,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:00,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-24 23:49:00,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:00,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:00,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:00,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 23:49:00,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:00,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 23:49:00,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:00,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:00,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:49:00,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:00,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:00,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:00,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:00,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:49:00,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 23:49:01,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059652814] [2020-09-24 23:49:01,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:01,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 23:49:01,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879132756] [2020-09-24 23:49:01,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 23:49:01,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:01,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 23:49:01,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:49:01,040 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 23:49:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:01,482 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 23:49:01,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 23:49:01,482 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 23:49:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:01,484 INFO L225 Difference]: With dead ends: 59 [2020-09-24 23:49:01,484 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 23:49:01,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 23:49:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 23:49:01,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 23:49:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 23:49:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 23:49:01,492 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 23:49:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:01,492 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 23:49:01,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 23:49:01,493 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 23:49:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 23:49:01,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:01,494 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:01,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:49:01,494 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:01,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:01,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 23:49:01,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:01,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554631825] [2020-09-24 23:49:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 23:49:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-09-24 23:49:02,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 23:49:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 23:49:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:02,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:02,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:02,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:02,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:02,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:03,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-09-24 23:49:03,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:03,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:03,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:03,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:03,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-24 23:49:03,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:03,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:03,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:03,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:03,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:04,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-24 23:49:04,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:04,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:04,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:04,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:04,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:04,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:04,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:04,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:04,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:04,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:05,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:05,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 23:49:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:05,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:05,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:49:05,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:05,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:05,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:05,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:05,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:05,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:49:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 23:49:05,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554631825] [2020-09-24 23:49:05,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:05,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 23:49:05,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550686320] [2020-09-24 23:49:05,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 23:49:05,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:05,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 23:49:05,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:49:05,547 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 23:49:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:06,117 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 23:49:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 23:49:06,118 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 23:49:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:06,119 INFO L225 Difference]: With dead ends: 63 [2020-09-24 23:49:06,120 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 23:49:06,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 23:49:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 23:49:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 23:49:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 23:49:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 23:49:06,128 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 23:49:06,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:06,128 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 23:49:06,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 23:49:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 23:49:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 23:49:06,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:06,130 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:06,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:49:06,130 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:06,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:06,130 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 23:49:06,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:06,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897121467] [2020-09-24 23:49:06,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:07,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 23:49:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 23:49:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 23:49:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:07,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:07,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:07,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:07,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:07,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:07,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:08,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:09,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-24 23:49:09,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:09,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:10,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 23:49:10,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:10,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 23:49:10,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:10,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:10,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 23:49:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:10,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:10,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 23:49:10,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:10,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:49:10,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:10,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:10,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:10,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:10,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:10,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:10,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:49:10,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 23:49:10,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897121467] [2020-09-24 23:49:10,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:10,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 23:49:10,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101438540] [2020-09-24 23:49:10,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 23:49:10,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:10,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 23:49:10,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:49:10,937 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 23:49:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:11,627 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 23:49:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 23:49:11,628 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 23:49:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:11,629 INFO L225 Difference]: With dead ends: 67 [2020-09-24 23:49:11,630 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 23:49:11,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 23:49:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 23:49:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 23:49:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 23:49:11,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 23:49:11,638 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 23:49:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:11,638 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 23:49:11,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 23:49:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 23:49:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 23:49:11,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:11,639 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:11,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:49:11,640 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:11,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:11,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 23:49:11,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:11,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846692020] [2020-09-24 23:49:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:11,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:12,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 23:49:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:49:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:12,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:12,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:12,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:13,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:13,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:13,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:13,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:14,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:14,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:14,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:15,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:15,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:15,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:15,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-24 23:49:15,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:15,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:15,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:15,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:16,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:16,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:16,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:16,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:16,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:16,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 23:49:16,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:16,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:16,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 23:49:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:17,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:49:17,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:17,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:17,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:17,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:17,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:17,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:17,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:49:17,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:17,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:17,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 23:49:17,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846692020] [2020-09-24 23:49:17,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:17,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 23:49:17,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799908524] [2020-09-24 23:49:17,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 23:49:17,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:17,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 23:49:17,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:49:17,578 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 23:49:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:18,425 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 23:49:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 23:49:18,426 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 23:49:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:18,427 INFO L225 Difference]: With dead ends: 71 [2020-09-24 23:49:18,428 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 23:49:18,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 23:49:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 23:49:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 23:49:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 23:49:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 23:49:18,437 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 23:49:18,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:18,437 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 23:49:18,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 23:49:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 23:49:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 23:49:18,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:18,439 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:18,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 23:49:18,439 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:18,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:18,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 23:49:18,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:18,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136368290] [2020-09-24 23:49:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:18,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 23:49:19,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1302 [2020-09-24 23:49:19,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 23:49:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:49:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 23:49:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:19,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:19,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:19,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:19,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:19,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:19,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:19,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:19,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:20,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1114 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 23:49:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:20,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:22,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-24 23:49:22,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:22,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:22,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-09-24 23:49:22,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:23,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:23,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:23,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-09-24 23:49:23,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:23,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:23,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:24,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:24,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-24 23:49:24,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:24,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:24,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:25,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:25,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:25,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:25,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 23:49:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:25,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 23:49:25,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:25,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:25,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:49:25,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:26,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:49:26,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 23:49:26,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136368290] [2020-09-24 23:49:26,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:26,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 23:49:26,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105016533] [2020-09-24 23:49:26,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 23:49:26,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:26,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 23:49:26,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 23:49:26,166 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 23:49:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:27,158 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 23:49:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 23:49:27,159 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 23:49:27,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:27,160 INFO L225 Difference]: With dead ends: 75 [2020-09-24 23:49:27,160 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 23:49:27,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 23:49:27,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 23:49:27,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 23:49:27,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 23:49:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 23:49:27,178 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 23:49:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:27,179 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 23:49:27,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 23:49:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 23:49:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 23:49:27,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:27,180 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:27,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 23:49:27,181 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:27,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:27,184 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 23:49:27,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:27,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908684924] [2020-09-24 23:49:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 23:49:28,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-09-24 23:49:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 23:49:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 23:49:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 23:49:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:28,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:28,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:28,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:28,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:28,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:28,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:28,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:30,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:30,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 23:49:30,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:30,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1320 [2020-09-24 23:49:30,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 23:49:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:30,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 23:49:30,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:30,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:31,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1110 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 23:49:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:31,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:31,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:32,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 23:49:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:49:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:32,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:32,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:33,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:33,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 23:49:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 742 [2020-09-24 23:49:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 23:49:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:49:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:33,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:33,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:33,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:33,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 23:49:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:33,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:33,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:34,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 23:49:34,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:49:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:34,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:34,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:34,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:34,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 23:49:34,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:34,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-24 23:49:34,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:49:34,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:34,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:49:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 23:49:35,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:49:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:49:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:49:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 23:49:35,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:49:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 23:49:35,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 23:49:35,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:49:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:49:35,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:35,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 23:49:35,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:49:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:49:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:35,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:35,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:49:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:49:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 23:49:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:35,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:49:36,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:49:36,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:36,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:36,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:49:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:49:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:49:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:49:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-24 23:49:36,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908684924] [2020-09-24 23:49:36,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:36,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 23:49:36,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118722065] [2020-09-24 23:49:36,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 23:49:36,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:36,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 23:49:36,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 23:49:36,219 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 23:49:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:37,255 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 23:49:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 23:49:37,255 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 23:49:37,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:37,256 INFO L225 Difference]: With dead ends: 79 [2020-09-24 23:49:37,257 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 23:49:37,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 23:49:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 23:49:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 23:49:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 23:49:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 23:49:37,264 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 23:49:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:37,265 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 23:49:37,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 23:49:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 23:49:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 23:49:37,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:37,266 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:37,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 23:49:37,267 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 23:49:37,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:37,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133345166] [2020-09-24 23:49:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:39,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:39,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 23:49:39,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1773 [2020-09-24 23:49:39,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 23:49:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 23:49:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:49:39,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:39,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:39,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:39,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:39,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:39,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:40,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 23:49:40,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1530 [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 23:49:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:40,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1324 [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 23:49:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 23:49:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:49:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:42,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking...