/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=HIGHLEXORDER --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_o20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:41:22,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:41:22,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:41:22,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:41:22,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:41:22,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:41:22,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:41:22,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:41:22,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:41:22,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:41:22,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:41:22,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:41:22,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:41:22,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:41:22,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:41:22,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:41:22,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:41:22,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:41:22,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:41:22,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:41:22,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:41:22,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:41:22,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:41:22,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:41:22,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:41:22,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:41:22,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:41:22,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:41:22,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:41:22,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:41:22,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:41:22,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:41:22,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:41:22,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:41:22,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:41:22,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:41:22,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:41:22,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:41:22,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:41:22,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:41:22,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:41:22,928 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 22:41:22,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:41:22,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:41:22,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:41:22,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:41:22,956 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:41:22,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:41:22,956 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:41:22,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:41:22,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:41:22,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:41:22,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:41:22,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:41:22,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:41:22,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:41:22,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:41:22,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:41:22,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:41:22,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:41:22,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:41:22,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:41:22,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:41:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:41:22,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:41:22,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:41:22,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:41:22,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:41:22,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:41:22,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:41:22,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:41:22,961 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:41:23,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:41:23,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:41:23,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:41:23,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:41:23,443 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:41:23,444 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o20.c [2020-09-24 22:41:23,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b55fc24c/43722c17444046a98dc68267d888eb4e/FLAG6076e54c2 [2020-09-24 22:41:24,058 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:41:24,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o20.c [2020-09-24 22:41:24,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b55fc24c/43722c17444046a98dc68267d888eb4e/FLAG6076e54c2 [2020-09-24 22:41:24,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b55fc24c/43722c17444046a98dc68267d888eb4e [2020-09-24 22:41:24,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:41:24,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:41:24,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:41:24,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:41:24,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:41:24,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1840d501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24, skipping insertion in model container [2020-09-24 22:41:24,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:41:24,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:41:24,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:41:24,754 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:41:24,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:41:24,794 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:41:24,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24 WrapperNode [2020-09-24 22:41:24,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:41:24,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:41:24,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:41:24,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:41:24,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (1/1) ... [2020-09-24 22:41:24,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:41:24,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:41:24,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:41:24,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:41:24,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (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 22:41:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:41:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:41:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 22:41:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:41:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 22:41:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:41:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 22:41:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:41:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:41:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:41:25,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:41:25,223 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:41:25,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:41:25 BoogieIcfgContainer [2020-09-24 22:41:25,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:41:25,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:41:25,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:41:25,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:41:25,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:41:24" (1/3) ... [2020-09-24 22:41:25,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:41:25, skipping insertion in model container [2020-09-24 22:41:25,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:41:24" (2/3) ... [2020-09-24 22:41:25,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483c2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:41:25, skipping insertion in model container [2020-09-24 22:41:25,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:41:25" (3/3) ... [2020-09-24 22:41:25,238 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o20.c [2020-09-24 22:41:25,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:41:25,259 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:41:25,281 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:41:25,312 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:41:25,312 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:41:25,312 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:41:25,313 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:41:25,313 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:41:25,313 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:41:25,313 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:41:25,313 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:41:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 22:41:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 22:41:25,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:25,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:25,341 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:25,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:25,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 22:41:25,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:25,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045577064] [2020-09-24 22:41:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:25,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:41:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 22:41:25,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:41:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 22:41:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:41:25,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:25,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:25,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:25,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:25,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:25,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:41:25,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:25,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:25,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:25,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:25,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:25,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:25,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:25,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:25,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:25,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:41:25,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:25,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:25,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:25,754 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 22:41:25,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045577064] [2020-09-24 22:41:25,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:41:25,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:41:25,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672840858] [2020-09-24 22:41:25,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:41:25,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:25,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:41:25,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:41:25,795 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 22:41:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:25,877 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 22:41:25,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:41:25,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 22:41:25,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:25,893 INFO L225 Difference]: With dead ends: 37 [2020-09-24 22:41:25,893 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 22:41:25,898 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 22:41:25,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 22:41:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 22:41:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 22:41:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 22:41:25,947 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 22:41:25,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:25,948 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 22:41:25,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:41:25,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 22:41:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 22:41:25,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:25,951 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 22:41:25,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:41:25,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:25,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:25,952 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 22:41:25,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:25,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485790102] [2020-09-24 22:41:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:25,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 22:41:26,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 22:41:26,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:41:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 22:41:26,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:41:26,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:41:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:26,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:41:26,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:26,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:26,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 22:41:26,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:26,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:26,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:26,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:41:26,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:26,618 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 22:41:26,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485790102] [2020-09-24 22:41:26,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:26,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 22:41:26,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643388474] [2020-09-24 22:41:26,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:41:26,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:26,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:41:26,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:41:26,623 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 22:41:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:26,695 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 22:41:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:41:26,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 22:41:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:26,698 INFO L225 Difference]: With dead ends: 31 [2020-09-24 22:41:26,698 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 22:41:26,700 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 22:41:26,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 22:41:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 22:41:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 22:41:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 22:41:26,708 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 22:41:26,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:26,709 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 22:41:26,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:41:26,709 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 22:41:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:41:26,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:26,711 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 22:41:26,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:41:26,712 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 22:41:26,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:26,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935305788] [2020-09-24 22:41:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 22:41:26,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 22:41:26,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:41:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 22:41:26,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:41:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:26,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:26,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:26,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:26,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:26,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:26,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:26,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:26,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:26,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:26,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:27,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:41:27,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 22:41:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:41:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:41:27,360 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 22:41:27,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935305788] [2020-09-24 22:41:27,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:27,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 22:41:27,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952991325] [2020-09-24 22:41:27,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:41:27,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:41:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:41:27,365 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 22:41:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:27,464 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 22:41:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:41:27,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 22:41:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:27,467 INFO L225 Difference]: With dead ends: 35 [2020-09-24 22:41:27,467 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 22:41:27,467 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 22:41:27,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 22:41:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 22:41:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 22:41:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 22:41:27,475 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 22:41:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:27,475 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 22:41:27,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:41:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 22:41:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 22:41:27,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:27,477 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 22:41:27,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:41:27,478 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 22:41:27,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:27,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882200598] [2020-09-24 22:41:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 22:41:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 22:41:27,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:41:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 22:41:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 22:41:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:27,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:27,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:27,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:27,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:27,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:27,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:27,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 22:41:27,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:27,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:27,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:28,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 22:41:28,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:41:28,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:28,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:28,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:41:28,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:28,288 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 22:41:28,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882200598] [2020-09-24 22:41:28,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:28,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 22:41:28,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526212713] [2020-09-24 22:41:28,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:41:28,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:28,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:41:28,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:41:28,295 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 22:41:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:28,445 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 22:41:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:41:28,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 22:41:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:28,447 INFO L225 Difference]: With dead ends: 39 [2020-09-24 22:41:28,451 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 22:41:28,452 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 22:41:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 22:41:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 22:41:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 22:41:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 22:41:28,463 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 22:41:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:28,466 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 22:41:28,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:41:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 22:41:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 22:41:28,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:28,468 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 22:41:28,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:41:28,469 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 22:41:28,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:28,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492348941] [2020-09-24 22:41:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 22:41:28,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-24 22:41:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:41:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 22:41:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:41:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:28,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:29,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 22:41:29,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 22:41:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:29,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 22:41:29,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 22:41:29,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:29,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:29,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:29,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:29,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:41:29,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:29,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:29,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:29,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:29,654 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 22:41:29,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492348941] [2020-09-24 22:41:29,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:29,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 22:41:29,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38101928] [2020-09-24 22:41:29,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:41:29,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:29,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:41:29,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:41:29,656 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 22:41:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:29,852 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 22:41:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 22:41:29,852 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 22:41:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:29,854 INFO L225 Difference]: With dead ends: 43 [2020-09-24 22:41:29,854 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 22:41:29,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:41:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 22:41:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 22:41:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 22:41:29,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 22:41:29,862 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 22:41:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:29,862 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 22:41:29,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:41:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 22:41:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 22:41:29,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:29,864 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 22:41:29,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:41:29,865 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:29,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 22:41:29,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:29,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321563994] [2020-09-24 22:41:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:29,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 22:41:30,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-09-24 22:41:30,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:41:30,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 22:41:30,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 22:41:30,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:30,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:30,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:30,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-24 22:41:30,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:30,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:30,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:30,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:30,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:30,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 22:41:30,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:30,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:31,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:31,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 22:41:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:31,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:31,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:31,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 22:41:31,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:31,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:31,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 22:41:31,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:31,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:31,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:31,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:31,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:31,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:31,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:41:31,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:31,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:31,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:31,495 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 22:41:31,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321563994] [2020-09-24 22:41:31,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:31,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 22:41:31,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155493123] [2020-09-24 22:41:31,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 22:41:31,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:31,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 22:41:31,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:41:31,498 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 22:41:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:31,725 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 22:41:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 22:41:31,725 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 22:41:31,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:31,727 INFO L225 Difference]: With dead ends: 47 [2020-09-24 22:41:31,727 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 22:41:31,728 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 22:41:31,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 22:41:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 22:41:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 22:41:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 22:41:31,735 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 22:41:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:31,735 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 22:41:31,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 22:41:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 22:41:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 22:41:31,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:31,738 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 22:41:31,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:41:31,738 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:31,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:31,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 22:41:31,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:31,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132828266] [2020-09-24 22:41:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:31,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 22:41:32,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-09-24 22:41:32,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 22:41:32,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 22:41:32,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 22:41:32,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:32,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:32,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:41:32,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:32,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:32,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:32,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:32,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:32,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:32,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-09-24 22:41:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:32,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:32,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:32,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 22:41:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:33,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:33,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-24 22:41:33,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:33,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 22:41:33,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:33,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 22:41:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:33,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 22:41:33,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:33,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:33,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:33,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:33,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:41:33,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:33,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:33,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:33,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:33,875 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 22:41:33,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132828266] [2020-09-24 22:41:33,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:33,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 22:41:33,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71811708] [2020-09-24 22:41:33,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 22:41:33,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:33,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 22:41:33,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:41:33,878 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 22:41:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:34,145 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 22:41:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 22:41:34,145 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 22:41:34,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:34,147 INFO L225 Difference]: With dead ends: 51 [2020-09-24 22:41:34,147 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 22:41:34,148 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 22:41:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 22:41:34,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 22:41:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 22:41:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 22:41:34,154 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 22:41:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:34,155 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 22:41:34,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 22:41:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 22:41:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 22:41:34,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:34,157 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 22:41:34,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:41:34,157 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:34,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:34,157 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 22:41:34,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:34,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986014359] [2020-09-24 22:41:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:34,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:34,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 22:41:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-09-24 22:41:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 22:41:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 22:41:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 22:41:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:34,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:34,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:34,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:34,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:34,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:34,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:34,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:34,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:34,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:34,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:35,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-24 22:41:35,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:35,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:35,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:35,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-24 22:41:35,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 22:41:36,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:36,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 22:41:36,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:36,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:41:36,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:36,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:36,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:36,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 22:41:36,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 22:41:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:36,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:36,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:36,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:41:36,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:36,902 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 22:41:36,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986014359] [2020-09-24 22:41:36,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:36,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 22:41:36,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430055828] [2020-09-24 22:41:36,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 22:41:36,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:36,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 22:41:36,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:41:36,905 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 22:41:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:37,243 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 22:41:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 22:41:37,244 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 22:41:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:37,245 INFO L225 Difference]: With dead ends: 55 [2020-09-24 22:41:37,246 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 22:41:37,247 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 22:41:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 22:41:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 22:41:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 22:41:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 22:41:37,259 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 22:41:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:37,263 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 22:41:37,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 22:41:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 22:41:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 22:41:37,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:37,265 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 22:41:37,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:41:37,266 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:37,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:37,266 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 22:41:37,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:37,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524320449] [2020-09-24 22:41:37,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:37,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 22:41:38,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-09-24 22:41:38,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 22:41:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 22:41:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 22:41:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:38,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:38,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:38,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:38,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:38,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:38,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-24 22:41:38,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:38,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:38,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:38,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:39,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:39,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-24 22:41:39,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:39,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:39,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-24 22:41:39,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:39,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:39,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:39,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:39,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:39,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 22:41:39,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:39,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:39,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:39,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:40,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 22:41:40,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:40,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:40,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 22:41:40,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:40,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:40,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 22:41:40,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:40,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:40,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:40,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:40,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:41:40,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:40,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:40,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:40,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:40,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:40,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:40,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:41:40,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:40,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:40,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:41:40,711 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 22:41:40,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524320449] [2020-09-24 22:41:40,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:40,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 22:41:40,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816256491] [2020-09-24 22:41:40,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 22:41:40,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:40,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 22:41:40,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 22:41:40,721 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 22:41:41,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:41,127 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 22:41:41,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 22:41:41,127 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 22:41:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:41,129 INFO L225 Difference]: With dead ends: 59 [2020-09-24 22:41:41,129 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 22:41:41,130 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 22:41:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 22:41:41,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 22:41:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 22:41:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 22:41:41,139 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 22:41:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:41,140 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 22:41:41,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 22:41:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 22:41:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 22:41:41,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:41,141 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 22:41:41,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:41:41,142 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 22:41:41,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:41,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852815878] [2020-09-24 22:41:41,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:41,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 22:41:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-09-24 22:41:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 22:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 22:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:42,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:42,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:42,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:42,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:42,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-09-24 22:41:42,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:42,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:42,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:42,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:43,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:43,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:43,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:43,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-09-24 22:41:43,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:43,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:43,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:43,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:43,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:43,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:43,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:43,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:43,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-09-24 22:41:43,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:43,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:44,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:44,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:44,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:44,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 22:41:44,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:44,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:44,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:44,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:44,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:44,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:44,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:44,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 22:41:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:44,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:44,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:44,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:44,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:44,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:44,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:44,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:44,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:45,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:45,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:45,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:45,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 22:41:45,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:45,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:45,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:45,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:45,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:45,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:45,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:45,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:41:45,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:45,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:45,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:45,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:45,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:45,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:41:45,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:45,268 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 22:41:45,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852815878] [2020-09-24 22:41:45,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:45,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 22:41:45,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017700712] [2020-09-24 22:41:45,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 22:41:45,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:45,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 22:41:45,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:41:45,271 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 22:41:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:45,868 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 22:41:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 22:41:45,869 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 22:41:45,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:45,870 INFO L225 Difference]: With dead ends: 63 [2020-09-24 22:41:45,870 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 22:41:45,871 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 22:41:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 22:41:45,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 22:41:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 22:41:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 22:41:45,877 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 22:41:45,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:45,878 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 22:41:45,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 22:41:45,878 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 22:41:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 22:41:45,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:45,879 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 22:41:45,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:41:45,880 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:45,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:45,880 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 22:41:45,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:45,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236274090] [2020-09-24 22:41:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 22:41:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:46,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:46,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:46,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:46,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:46,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:46,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:46,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:46,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:46,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:47,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:41:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:47,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:48,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:48,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:48,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:48,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:48,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:48,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:48,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:48,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:49,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:49,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-09-24 22:41:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:49,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:49,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:49,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:49,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:49,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:49,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:49,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:49,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 22:41:49,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:49,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:50,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:50,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:50,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:50,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 22:41:50,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:50,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:50,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:50,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:41:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:50,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:50,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:50,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:50,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:50,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:50,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:41:50,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:50,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:50,594 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 22:41:50,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236274090] [2020-09-24 22:41:50,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:50,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 22:41:50,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224482309] [2020-09-24 22:41:50,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 22:41:50,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:50,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 22:41:50,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 22:41:50,597 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 22:41:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:51,307 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 22:41:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 22:41:51,307 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 22:41:51,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:51,309 INFO L225 Difference]: With dead ends: 67 [2020-09-24 22:41:51,309 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 22:41:51,310 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 22:41:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 22:41:51,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 22:41:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 22:41:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 22:41:51,316 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 22:41:51,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:51,316 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 22:41:51,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 22:41:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 22:41:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 22:41:51,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:51,318 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 22:41:51,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:41:51,318 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:51,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 22:41:51,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:51,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195643691] [2020-09-24 22:41:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1093 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 22:41:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:52,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:52,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:52,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:52,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:52,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 885 [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:41:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:41:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:53,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:41:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:41:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:54,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:54,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:41:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:41:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:54,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:55,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:55,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:41:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:55,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:55,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:55,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:41:55,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:41:55,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:55,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:55,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:41:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:56,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:56,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:41:56,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:56,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:56,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:41:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:56,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:41:56,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:56,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:56,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:56,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:56,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:41:56,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:41:56,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:41:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:41:56,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:57,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:57,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:57,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:41:57,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:57,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 22:41:57,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:57,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:57,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:57,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:41:57,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:57,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:41:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:57,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:57,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:57,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:41:57,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:41:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:57,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:41:57,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:57,236 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 22:41:57,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195643691] [2020-09-24 22:41:57,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:57,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 22:41:57,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822742533] [2020-09-24 22:41:57,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 22:41:57,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:57,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 22:41:57,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 22:41:57,238 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 22:41:58,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:58,080 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 22:41:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 22:41:58,081 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 22:41:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:58,082 INFO L225 Difference]: With dead ends: 71 [2020-09-24 22:41:58,082 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 22:41:58,084 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 22:41:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 22:41:58,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 22:41:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 22:41:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 22:41:58,091 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 22:41:58,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:58,091 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 22:41:58,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 22:41:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 22:41:58,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 22:41:58,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:58,093 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 22:41:58,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:41:58,093 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:58,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 22:41:58,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:58,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430236222] [2020-09-24 22:41:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:58,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 22:41:59,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-09-24 22:41:59,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 22:41:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 22:41:59,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 22:41:59,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:59,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:59,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:59,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:41:59,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:41:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:00,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:00,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 22:42:00,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1083 [2020-09-24 22:42:00,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 22:42:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 22:42:00,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:00,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:00,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:42:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:42:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:01,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:02,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:02,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:42:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:02,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:02,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:03,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:03,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:42:03,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-09-24 22:42:03,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:42:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:42:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:03,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:03,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:42:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:03,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:03,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:04,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:04,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:42:04,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-09-24 22:42:04,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:42:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:42:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:04,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:04,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:04,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 22:42:04,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:42:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:04,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:42:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:04,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:42:05,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 22:42:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:42:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:42:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:42:05,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:42:05,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:42:05,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:42:05,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:42:05,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 22:42:05,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:42:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:42:05,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:42:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:42:05,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:42:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:05,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:05,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:05,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:42:05,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:05,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:05,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:42:05,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:05,927 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 22:42:05,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430236222] [2020-09-24 22:42:05,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:42:05,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 22:42:05,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703102997] [2020-09-24 22:42:05,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 22:42:05,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:05,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 22:42:05,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 22:42:05,930 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 22:42:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:06,963 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 22:42:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 22:42:06,963 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 22:42:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:06,964 INFO L225 Difference]: With dead ends: 75 [2020-09-24 22:42:06,965 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 22:42:06,966 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 22:42:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 22:42:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 22:42:06,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 22:42:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 22:42:06,978 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 22:42:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:06,979 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 22:42:06,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 22:42:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 22:42:06,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 22:42:06,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:06,981 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 22:42:06,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:42:06,982 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 22:42:06,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:06,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24602324] [2020-09-24 22:42:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:07,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:08,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:08,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 22:42:08,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:08,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1523 [2020-09-24 22:42:08,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 22:42:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 22:42:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 22:42:08,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:08,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:08,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:08,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:42:08,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:08,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:08,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:08,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:08,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:08,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:08,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:08,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:42:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:08,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:09,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1360 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 22:42:09,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:10,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:10,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:11,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:11,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 22:42:11,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:11,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:12,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:12,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 22:42:12,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 22:42:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 22:42:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 22:42:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:12,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-09-24 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:13,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:13,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:13,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 22:42:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:13,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:14,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:14,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 22:42:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:14,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:14,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 22:42:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:42:14,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:14,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:14,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:15,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:42:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 22:42:15,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 22:42:15,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:42:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:42:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:15,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:42:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:42:15,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:42:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:42:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:15,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:42:15,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 22:42:15,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:42:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 22:42:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:15,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:42:15,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:42:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:42:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 22:42:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:42:15,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:42:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:16,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:16,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:16,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:42:16,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:16,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:16,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:16,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:16,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:42:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:16,190 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 22:42:16,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24602324] [2020-09-24 22:42:16,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:42:16,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 22:42:16,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994606504] [2020-09-24 22:42:16,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 22:42:16,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:16,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 22:42:16,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 22:42:16,192 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 22:42:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:17,285 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 22:42:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 22:42:17,285 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 22:42:17,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:17,287 INFO L225 Difference]: With dead ends: 79 [2020-09-24 22:42:17,287 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 22:42:17,289 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 22:42:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 22:42:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 22:42:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 22:42:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 22:42:17,307 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 22:42:17,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:17,307 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 22:42:17,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 22:42:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 22:42:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 22:42:17,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:17,312 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 22:42:17,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 22:42:17,312 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 22:42:17,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:17,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523990411] [2020-09-24 22:42:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1871 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 22:42:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:19,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:42:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:19,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:19,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:42:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:20,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1590 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 22:42:20,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:20,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:42:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:20,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking...