/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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/fibo_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:21:58,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:21:58,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:21:58,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:21:58,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:21:58,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:21:58,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:21:58,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:21:58,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:21:58,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:21:58,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:21:58,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:21:58,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:21:58,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:21:58,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:21:58,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:21:58,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:21:58,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:21:58,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:21:58,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:21:58,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:21:58,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:21:58,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:21:58,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:21:58,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:21:58,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:21:58,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:21:58,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:21:58,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:21:58,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:21:58,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:21:58,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:21:58,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:21:58,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:21:58,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:21:58,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:21:58,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:21:58,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:21:58,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:21:58,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:21:58,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:21:58,831 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 [2020-09-21 12:21:58,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:21:58,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:21:58,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:21:58,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:21:58,863 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:21:58,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:21:58,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:21:58,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:21:58,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:21:58,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:21:58,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:21:58,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:21:58,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:21:58,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:21:58,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:21:58,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:21:58,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:21:58,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:21:58,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:21:58,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:21:58,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:21:58,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:21:58,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:21:58,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:21:58,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:21:58,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:21:58,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:21:58,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:21:58,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:21:58,868 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:21:59,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:21:59,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:21:59,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:21:59,359 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:21:59,360 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:21:59,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-21 12:21:59,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/deef13c08/bbb30b2c84e44e96b32493312c411184/FLAG791b22195 [2020-09-21 12:21:59,968 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:21:59,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-1.c [2020-09-21 12:21:59,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/deef13c08/bbb30b2c84e44e96b32493312c411184/FLAG791b22195 [2020-09-21 12:22:00,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/deef13c08/bbb30b2c84e44e96b32493312c411184 [2020-09-21 12:22:00,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:22:00,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:22:00,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:22:00,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:22:00,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:22:00,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f7f464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00, skipping insertion in model container [2020-09-21 12:22:00,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:22:00,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:22:00,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:22:00,653 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:22:00,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:22:00,684 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:22:00,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00 WrapperNode [2020-09-21 12:22:00,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:22:00,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:22:00,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:22:00,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:22:00,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (1/1) ... [2020-09-21 12:22:00,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:22:00,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:22:00,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:22:00,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:22:00,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (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 [2020-09-21 12:22:00,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:22:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:22:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-21 12:22:00,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:22:00,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:22:00,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:22:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-21 12:22:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:22:00,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:22:00,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:22:01,070 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:22:01,070 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:22:01,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:22:01 BoogieIcfgContainer [2020-09-21 12:22:01,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:22:01,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:22:01,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:22:01,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:22:01,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:22:00" (1/3) ... [2020-09-21 12:22:01,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dea4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:22:01, skipping insertion in model container [2020-09-21 12:22:01,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:22:00" (2/3) ... [2020-09-21 12:22:01,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dea4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:22:01, skipping insertion in model container [2020-09-21 12:22:01,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:22:01" (3/3) ... [2020-09-21 12:22:01,085 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-1.c [2020-09-21 12:22:01,098 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:22:01,108 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:22:01,136 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:22:01,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:22:01,172 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:22:01,172 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:22:01,173 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:22:01,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:22:01,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:22:01,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:22:01,174 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:22:01,219 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-21 12:22:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:22:01,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:01,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:01,233 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:01,242 INFO L82 PathProgramCache]: Analyzing trace with hash 537028541, now seen corresponding path program 1 times [2020-09-21 12:22:01,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:01,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880023604] [2020-09-21 12:22:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:01,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:01,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:01,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:22:01,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:01,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-21 12:22:01,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:01,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:22:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:01,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:01,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:01,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:01,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:01,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:01,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:01,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:01,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:01,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:01,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:01,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:01,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:22:01,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880023604] [2020-09-21 12:22:01,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:22:01,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:22:01,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172371787] [2020-09-21 12:22:01,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:22:01,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:01,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:22:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:01,735 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-21 12:22:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:01,835 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2020-09-21 12:22:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:22:01,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 12:22:01,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:01,851 INFO L225 Difference]: With dead ends: 35 [2020-09-21 12:22:01,851 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 12:22:01,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:22:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 12:22:01,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-09-21 12:22:01,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 12:22:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-09-21 12:22:01,907 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-09-21 12:22:01,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:01,907 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-09-21 12:22:01,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:22:01,908 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-09-21 12:22:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:22:01,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:01,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:01,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:22:01,911 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:01,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:01,911 INFO L82 PathProgramCache]: Analyzing trace with hash 179123823, now seen corresponding path program 1 times [2020-09-21 12:22:01,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:01,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879130927] [2020-09-21 12:22:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:01,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:01,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:02,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:22:02,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 12:22:02,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:22:02,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:22:02,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:02,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:02,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:02,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:02,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:02,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:02,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:02,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:02,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:02,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 12:22:02,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:02,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:22:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:22:02,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879130927] [2020-09-21 12:22:02,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:22:02,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:22:02,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052943009] [2020-09-21 12:22:02,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:22:02,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:02,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:22:02,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:02,188 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-09-21 12:22:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:02,205 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-09-21 12:22:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:22:02,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:22:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:02,207 INFO L225 Difference]: With dead ends: 27 [2020-09-21 12:22:02,208 INFO L226 Difference]: Without dead ends: 23 [2020-09-21 12:22:02,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:22:02,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-21 12:22:02,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-09-21 12:22:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 12:22:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-09-21 12:22:02,216 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-09-21 12:22:02,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:02,217 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-09-21 12:22:02,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:22:02,217 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-09-21 12:22:02,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:22:02,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:02,218 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:02,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:22:02,219 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:02,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:02,219 INFO L82 PathProgramCache]: Analyzing trace with hash 806022394, now seen corresponding path program 1 times [2020-09-21 12:22:02,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:02,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620003827] [2020-09-21 12:22:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:02,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:22:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:22:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:03,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:03,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:03,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:03,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:03,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:03,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:03,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:03,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:22:03,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:22:03,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:22:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:03,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:03,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:03,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:03,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:22:03,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:03,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:22:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:03,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:03,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:03,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:03,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:03,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:03,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:03,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:03,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 12:22:03,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620003827] [2020-09-21 12:22:03,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:03,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:22:03,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235787680] [2020-09-21 12:22:03,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:22:03,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:03,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:22:03,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:22:03,374 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states. [2020-09-21 12:22:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:03,458 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-09-21 12:22:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:22:03,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-21 12:22:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:03,460 INFO L225 Difference]: With dead ends: 38 [2020-09-21 12:22:03,460 INFO L226 Difference]: Without dead ends: 23 [2020-09-21 12:22:03,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:03,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-21 12:22:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-21 12:22:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-21 12:22:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-09-21 12:22:03,469 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26 [2020-09-21 12:22:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:03,469 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-09-21 12:22:03,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:22:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-09-21 12:22:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:22:03,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:03,471 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:03,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:22:03,472 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:03,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:03,472 INFO L82 PathProgramCache]: Analyzing trace with hash -983862936, now seen corresponding path program 1 times [2020-09-21 12:22:03,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:03,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596256469] [2020-09-21 12:22:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:03,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:03,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:04,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:22:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-21 12:22:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:04,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:22:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:04,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:04,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:04,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:04,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:04,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:04,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:04,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-21 12:22:04,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:04,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:04,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:04,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:04,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:04,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:22:04,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:04,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:04,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:04,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:04,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:04,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:04,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:04,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:04,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:22:04,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596256469] [2020-09-21 12:22:04,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:04,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:04,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581779520] [2020-09-21 12:22:04,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:04,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:04,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:04,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:04,390 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 7 states. [2020-09-21 12:22:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:04,499 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2020-09-21 12:22:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:22:04,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-21 12:22:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:04,502 INFO L225 Difference]: With dead ends: 49 [2020-09-21 12:22:04,502 INFO L226 Difference]: Without dead ends: 32 [2020-09-21 12:22:04,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-21 12:22:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-21 12:22:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 12:22:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-09-21 12:22:04,512 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 27 [2020-09-21 12:22:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:04,513 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-09-21 12:22:04,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-09-21 12:22:04,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 12:22:04,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:04,515 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:04,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:22:04,515 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:04,516 INFO L82 PathProgramCache]: Analyzing trace with hash 146085807, now seen corresponding path program 2 times [2020-09-21 12:22:04,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:04,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425691781] [2020-09-21 12:22:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:05,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 12:22:05,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:05,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:05,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:05,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:05,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 12:22:05,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:05,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:05,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:05,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:05,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:05,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:06,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:22:06,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:06,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:06,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:06,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 12:22:06,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:06,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:06,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 12:22:06,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:06,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:06,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:06,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:06,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:06,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:06,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:22:06,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:06,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:06,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:06,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:06,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:06,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:06,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:06,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:06,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:06,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:06,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:06,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:06,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-21 12:22:06,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425691781] [2020-09-21 12:22:06,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:06,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:22:06,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170139774] [2020-09-21 12:22:06,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:22:06,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:06,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:22:06,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:22:06,715 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 6 states. [2020-09-21 12:22:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:06,804 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-09-21 12:22:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:22:06,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-09-21 12:22:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:06,811 INFO L225 Difference]: With dead ends: 42 [2020-09-21 12:22:06,811 INFO L226 Difference]: Without dead ends: 38 [2020-09-21 12:22:06,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:22:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-21 12:22:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-09-21 12:22:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-21 12:22:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2020-09-21 12:22:06,834 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 40 [2020-09-21 12:22:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:06,834 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2020-09-21 12:22:06,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:22:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2020-09-21 12:22:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:22:06,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:06,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:06,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:22:06,839 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:06,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1111873851, now seen corresponding path program 3 times [2020-09-21 12:22:06,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:06,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605898693] [2020-09-21 12:22:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:06,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:07,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:07,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:07,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:22:07,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:07,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:22:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:07,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:22:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:07,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:07,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:07,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:07,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:07,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:07,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:07,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:07,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:07,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:07,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:07,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:07,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:08,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:08,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:08,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:08,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:08,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:08,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:08,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:08,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:08,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:08,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:08,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:08,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:22:08,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:08,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:08,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:08,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:08,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:08,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:08,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:08,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:08,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:08,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:08,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:08,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:08,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:08,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:08,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:09,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:09,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:09,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:22:09,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-21 12:22:09,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605898693] [2020-09-21 12:22:09,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:09,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:09,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235512239] [2020-09-21 12:22:09,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:09,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:09,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:09,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:09,033 INFO L87 Difference]: Start difference. First operand 35 states and 47 transitions. Second operand 7 states. [2020-09-21 12:22:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:09,155 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2020-09-21 12:22:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:22:09,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-09-21 12:22:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:09,158 INFO L225 Difference]: With dead ends: 47 [2020-09-21 12:22:09,158 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 12:22:09,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 12:22:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-09-21 12:22:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-21 12:22:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2020-09-21 12:22:09,168 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 41 [2020-09-21 12:22:09,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:09,169 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2020-09-21 12:22:09,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:09,169 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2020-09-21 12:22:09,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:22:09,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:09,171 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:09,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:22:09,172 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:09,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1372721019, now seen corresponding path program 4 times [2020-09-21 12:22:09,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:09,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751515271] [2020-09-21 12:22:09,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:09,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:09,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:10,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 12:22:10,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:10,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:10,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:10,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:10,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:10,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:22:10,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:10,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:10,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:10,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:10,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:10,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:10,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:10,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:11,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 12:22:11,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:11,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-21 12:22:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:22:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:11,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:11,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:11,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:22:11,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:11,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:11,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:11,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:22:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:11,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:11,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:11,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:11,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:11,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:11,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:11,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:12,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:22:12,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:12,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:12,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:12,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:22:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:12,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:12,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:12,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:12,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-21 12:22:12,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:12,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:12,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:12,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:12,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:12,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:12,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:12,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:12,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:12,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:12,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:12,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:12,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:12,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:12,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:12,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:12,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:12,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:12,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:12,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:22:12,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:12,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:12,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 80 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-09-21 12:22:12,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751515271] [2020-09-21 12:22:12,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:12,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:22:12,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553809417] [2020-09-21 12:22:12,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:22:12,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:12,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:22:12,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:12,638 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand 9 states. [2020-09-21 12:22:12,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:12,795 INFO L93 Difference]: Finished difference Result 79 states and 119 transitions. [2020-09-21 12:22:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:22:12,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-09-21 12:22:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:12,797 INFO L225 Difference]: With dead ends: 79 [2020-09-21 12:22:12,798 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 12:22:12,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:22:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 12:22:12,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-21 12:22:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 12:22:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2020-09-21 12:22:12,817 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 67 [2020-09-21 12:22:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:12,818 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-09-21 12:22:12,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:22:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2020-09-21 12:22:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:22:12,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:12,822 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:12,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:22:12,823 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:12,823 INFO L82 PathProgramCache]: Analyzing trace with hash 653994407, now seen corresponding path program 5 times [2020-09-21 12:22:12,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:12,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907500406] [2020-09-21 12:22:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:12,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:12,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:13,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 12:22:13,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:13,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:13,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:22:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:22:13,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:13,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:13,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:13,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:13,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:13,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:13,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:13,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:14,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:14,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:22:14,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:15,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:15,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:15,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-21 12:22:15,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:15,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:15,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:15,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:15,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:15,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:15,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:15,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:15,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:15,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:15,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-09-21 12:22:15,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:22:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:15,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:15,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:15,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:15,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:22:15,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:16,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:16,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:16,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:16,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:16,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:16,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:16,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:16,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:22:16,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:16,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:16,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 43 proven. 62 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-21 12:22:16,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907500406] [2020-09-21 12:22:16,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:16,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:16,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498867946] [2020-09-21 12:22:16,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:16,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:16,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:16,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:16,050 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand 7 states. [2020-09-21 12:22:16,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:16,229 INFO L93 Difference]: Finished difference Result 89 states and 130 transitions. [2020-09-21 12:22:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:22:16,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-09-21 12:22:16,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:16,232 INFO L225 Difference]: With dead ends: 89 [2020-09-21 12:22:16,232 INFO L226 Difference]: Without dead ends: 41 [2020-09-21 12:22:16,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:22:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-21 12:22:16,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-21 12:22:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 12:22:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-09-21 12:22:16,242 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 68 [2020-09-21 12:22:16,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:16,242 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-09-21 12:22:16,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-09-21 12:22:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-21 12:22:16,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:16,244 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:16,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:22:16,244 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:16,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1474757101, now seen corresponding path program 6 times [2020-09-21 12:22:16,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:16,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380053400] [2020-09-21 12:22:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-21 12:22:17,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:17,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:17,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:17,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:17,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:17,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:17,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:17,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:17,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:17,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:18,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:22:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:18,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:18,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:19,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:19,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:19,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:19,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:22:19,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:19,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:19,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:19,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:19,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:19,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:19,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:19,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:19,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:19,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-21 12:22:20,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:20,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 12:22:20,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:20,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:22:20,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:20,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:20,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:20,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:20,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:20,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:20,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:20,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:20,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:20,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:20,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:20,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:20,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:22:20,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 124 proven. 88 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-09-21 12:22:20,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380053400] [2020-09-21 12:22:20,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:20,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:22:20,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990700348] [2020-09-21 12:22:20,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:22:20,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:20,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:22:20,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:22:20,658 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 10 states. [2020-09-21 12:22:20,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:20,898 INFO L93 Difference]: Finished difference Result 85 states and 121 transitions. [2020-09-21 12:22:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:22:20,899 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-09-21 12:22:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:20,901 INFO L225 Difference]: With dead ends: 85 [2020-09-21 12:22:20,901 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 12:22:20,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:22:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 12:22:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-09-21 12:22:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 12:22:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2020-09-21 12:22:20,917 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 96 [2020-09-21 12:22:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:20,917 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2020-09-21 12:22:20,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:22:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2020-09-21 12:22:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 12:22:20,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:20,920 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:20,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:22:20,925 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:20,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1200034344, now seen corresponding path program 7 times [2020-09-21 12:22:20,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:20,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250829364] [2020-09-21 12:22:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:20,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:21,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 12:22:21,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:22:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:22:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-21 12:22:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:21,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:21,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:21,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:21,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:22,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 12:22:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:23,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:23,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:23,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:22:23,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:23,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:23,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:23,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:23,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:23,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:23,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:23,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:23,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:23,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:23,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:23,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:23,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:23,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:24,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:24,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:24,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:24,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:22:24,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:24,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:24,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:24,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 141 proven. 41 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2020-09-21 12:22:24,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250829364] [2020-09-21 12:22:24,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:24,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:22:24,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495587001] [2020-09-21 12:22:24,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:22:24,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:22:24,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:22:24,329 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 7 states. [2020-09-21 12:22:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:24,407 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2020-09-21 12:22:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:22:24,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-09-21 12:22:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:24,409 INFO L225 Difference]: With dead ends: 56 [2020-09-21 12:22:24,409 INFO L226 Difference]: Without dead ends: 52 [2020-09-21 12:22:24,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:22:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-21 12:22:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-09-21 12:22:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-21 12:22:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2020-09-21 12:22:24,417 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 109 [2020-09-21 12:22:24,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:24,418 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2020-09-21 12:22:24,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:22:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2020-09-21 12:22:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 12:22:24,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:24,419 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:24,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:22:24,420 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:24,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:24,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1040445716, now seen corresponding path program 8 times [2020-09-21 12:22:24,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:24,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279818567] [2020-09-21 12:22:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:24,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 12:22:25,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:25,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:25,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:22:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:25,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:25,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:25,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:25,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:26,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-21 12:22:26,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-21 12:22:26,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:26,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-21 12:22:26,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:26,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:27,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:28,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:28,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:28,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:22:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:28,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:28,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:28,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:28,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:28,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:28,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:28,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:28,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:22:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:28,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:22:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:28,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:28,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:28,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:28,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:28,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:28,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:28,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:28,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:29,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:29,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:29,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:22:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:29,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:22:29,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:29,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:29,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:29,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:29,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:29,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:29,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:29,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:29,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:29,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:29,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:29,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:29,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:29,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:29,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:30,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-21 12:22:30,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:30,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:22:30,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:30,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:22:30,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:30,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:22:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:30,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:30,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:30,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:30,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:30,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:22:30,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 218 proven. 217 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2020-09-21 12:22:30,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279818567] [2020-09-21 12:22:30,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:30,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:22:30,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462972723] [2020-09-21 12:22:30,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:22:30,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:30,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:22:30,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:22:30,345 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 12 states. [2020-09-21 12:22:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:30,826 INFO L93 Difference]: Finished difference Result 126 states and 205 transitions. [2020-09-21 12:22:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 12:22:30,827 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 136 [2020-09-21 12:22:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:30,829 INFO L225 Difference]: With dead ends: 126 [2020-09-21 12:22:30,829 INFO L226 Difference]: Without dead ends: 82 [2020-09-21 12:22:30,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:22:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-21 12:22:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2020-09-21 12:22:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 12:22:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-09-21 12:22:30,854 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 136 [2020-09-21 12:22:30,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:30,854 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-09-21 12:22:30,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:22:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-09-21 12:22:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-21 12:22:30,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:30,856 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:30,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:22:30,860 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:30,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:30,860 INFO L82 PathProgramCache]: Analyzing trace with hash 259499213, now seen corresponding path program 9 times [2020-09-21 12:22:30,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:30,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079854915] [2020-09-21 12:22:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:30,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:31,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-21 12:22:31,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:31,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:31,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:31,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 12:22:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:31,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:31,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:31,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:31,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:31,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:31,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:31,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:31,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:22:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-09-21 12:22:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:33,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:33,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:33,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:34,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:22:34,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:34,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:34,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:34,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:34,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:34,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:34,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:34,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:34,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:34,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:34,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:34,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:34,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:34,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:34,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:34,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:34,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:34,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:35,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:35,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:35,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:35,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:35,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:35,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:22:35,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:35,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:22:35,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:35,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:35,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:35,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:35,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:35,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:35,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 210 proven. 241 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2020-09-21 12:22:35,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079854915] [2020-09-21 12:22:35,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:35,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:22:35,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989334126] [2020-09-21 12:22:35,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:22:35,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:35,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:22:35,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:22:35,476 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 9 states. [2020-09-21 12:22:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:22:35,670 INFO L93 Difference]: Finished difference Result 129 states and 209 transitions. [2020-09-21 12:22:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:22:35,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-09-21 12:22:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:22:35,673 INFO L225 Difference]: With dead ends: 129 [2020-09-21 12:22:35,673 INFO L226 Difference]: Without dead ends: 91 [2020-09-21 12:22:35,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:22:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-21 12:22:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2020-09-21 12:22:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-21 12:22:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 131 transitions. [2020-09-21 12:22:35,685 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 131 transitions. Word has length 177 [2020-09-21 12:22:35,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:22:35,685 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 131 transitions. [2020-09-21 12:22:35,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:22:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 131 transitions. [2020-09-21 12:22:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-09-21 12:22:35,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:22:35,694 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 51, 31, 31, 31, 31, 31, 31, 31, 20, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:22:35,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:22:35,694 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:22:35,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:22:35,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1851025972, now seen corresponding path program 10 times [2020-09-21 12:22:35,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:22:35,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785859476] [2020-09-21 12:22:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:22:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:35,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:36,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 569 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-21 12:22:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:22:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:36,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:22:36,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:22:36,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:22:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:36,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:37,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:37,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-09-21 12:22:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-09-21 12:22:37,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:22:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-09-21 12:22:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:38,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:38,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:38,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:39,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-21 12:22:39,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:22:39,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-09-21 12:22:39,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-09-21 12:22:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:40,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:40,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:40,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:41,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:41,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-21 12:22:41,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:22:41,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:41,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 12:22:41,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:41,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:22:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:41,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:41,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:42,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:42,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:42,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:42,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:42,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:42,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:42,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:42,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:42,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:42,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:22:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:42,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:43,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:22:43,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:43,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:22:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:43,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 12:22:43,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:43,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:22:43,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:43,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:43,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:43,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:43,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:43,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:43,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:43,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:43,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:43,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:44,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:44,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:22:44,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:44,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:44,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:44,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:44,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:44,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:44,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:44,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-21 12:22:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:44,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:44,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:45,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-21 12:22:45,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-21 12:22:45,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 12:22:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:22:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-09-21 12:22:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:45,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:46,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:46,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:22:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:22:46,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:22:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-21 12:22:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:46,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:47,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:22:47,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:47,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:22:47,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:22:47,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:47,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:22:47,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:47,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:47,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:47,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:47,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:47,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:47,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:47,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:47,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:47,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:47,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:47,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:47,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:47,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:47,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:48,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:22:48,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:48,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:48,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:48,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:48,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:48,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:48,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:48,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:48,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:48,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:48,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:48,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:22:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:48,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 12:22:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:22:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 12:22:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:22:49,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:22:49,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:49,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:22:49,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:49,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:22:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:49,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:22:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:49,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:49,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:22:50,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:22:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:22:50,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:22:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:22:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:22:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:22:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:50,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:50,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:22:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:22:50,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:22:50,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:22:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:22:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:22:50,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:22:50,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:22:50,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:22:50,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:22:50,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:22:50,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:22:50,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:22:50,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:22:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:22:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10947 backedges. 2060 proven. 2012 refuted. 0 times theorem prover too weak. 6875 trivial. 0 not checked. [2020-09-21 12:22:50,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785859476] [2020-09-21 12:22:50,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:22:50,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-21 12:22:50,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61799579] [2020-09-21 12:22:50,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-21 12:22:50,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:22:50,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-21 12:22:50,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:22:50,724 INFO L87 Difference]: Start difference. First operand 83 states and 131 transitions. Second operand 19 states.