/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:10:18,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:10:18,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:10:18,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:10:18,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:10:18,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:10:18,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:10:18,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:10:18,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:10:18,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:10:18,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:10:18,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:10:18,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:10:18,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:10:18,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:10:18,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:10:18,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:10:18,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:10:18,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:10:18,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:10:18,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:10:18,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:10:18,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:10:18,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:10:18,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:10:18,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:10:18,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:10:18,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:10:18,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:10:18,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:10:18,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:10:18,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:10:18,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:10:18,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:10:18,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:10:18,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:10:18,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:10:18,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:10:18,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:10:18,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:10:18,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:10:18,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:10:18,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:10:18,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:10:18,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:10:18,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:10:18,777 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:10:18,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:10:18,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:10:18,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:10:18,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:10:18,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:10:18,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:10:18,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:10:18,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:10:18,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:10:18,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:10:18,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:10:18,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:10:18,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:10:18,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:10:18,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:10:18,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:10:18,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:10:18,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:10:18,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:10:18,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:10:18,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:10:18,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:10:18,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:10:18,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:10:18,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:10:19,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:10:19,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:10:19,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:10:19,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:10:19,253 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:10:19,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 03:10:19,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/defc224f3/8c2192dce07b4318866c659643427e48/FLAG4154669cf [2020-09-25 03:10:19,888 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:10:19,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 03:10:19,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/defc224f3/8c2192dce07b4318866c659643427e48/FLAG4154669cf [2020-09-25 03:10:20,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/defc224f3/8c2192dce07b4318866c659643427e48 [2020-09-25 03:10:20,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:10:20,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:10:20,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:10:20,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:10:20,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:10:20,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54535c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20, skipping insertion in model container [2020-09-25 03:10:20,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:10:20,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:10:20,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:10:20,550 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:10:20,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:10:20,589 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:10:20,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20 WrapperNode [2020-09-25 03:10:20,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:10:20,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:10:20,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:10:20,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:10:20,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... [2020-09-25 03:10:20,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:10:20,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:10:20,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:10:20,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:10:20,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:10:20,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:10:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:10:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 03:10:20,788 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 03:10:20,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:10:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:10:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:10:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 03:10:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 03:10:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:10:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:10:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:10:21,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:10:21,049 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:10:21,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:10:21 BoogieIcfgContainer [2020-09-25 03:10:21,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:10:21,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:10:21,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:10:21,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:10:21,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:10:20" (1/3) ... [2020-09-25 03:10:21,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:10:21, skipping insertion in model container [2020-09-25 03:10:21,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:20" (2/3) ... [2020-09-25 03:10:21,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57daf807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:10:21, skipping insertion in model container [2020-09-25 03:10:21,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:10:21" (3/3) ... [2020-09-25 03:10:21,066 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_6-1.c [2020-09-25 03:10:21,093 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:10:21,113 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:10:21,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:10:21,197 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:10:21,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:10:21,198 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:10:21,198 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:10:21,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:10:21,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:10:21,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:10:21,198 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:10:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 03:10:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:10:21,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:21,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:21,230 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:21,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:21,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 03:10:21,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:21,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260513641] [2020-09-25 03:10:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:10:21,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 03:10:21,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:21,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:10:21,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:10:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:21,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:10:21,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:21,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:21,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:21,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 03:10:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:10:21,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260513641] [2020-09-25 03:10:21,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:21,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:10:21,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312193573] [2020-09-25 03:10:21,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:10:21,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:10:21,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:10:21,682 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 03:10:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:21,815 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 03:10:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:10:21,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:10:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:21,831 INFO L225 Difference]: With dead ends: 58 [2020-09-25 03:10:21,832 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 03:10:21,835 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 [2020-09-25 03:10:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 03:10:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 03:10:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:10:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 03:10:21,892 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 03:10:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:21,893 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 03:10:21,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:10:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 03:10:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 03:10:21,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:21,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:21,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:10:21,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 03:10:21,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:21,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352477771] [2020-09-25 03:10:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 03:10:21,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 03:10:21,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:21,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:21,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:22,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:22,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:22,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:10:22,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:22,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:22,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:22,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:22,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:22,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:10:22,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:22,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:10:22,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352477771] [2020-09-25 03:10:22,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:22,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:10:22,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509755683] [2020-09-25 03:10:22,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:10:22,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:22,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:10:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:10:22,107 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 03:10:22,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:22,186 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 03:10:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:10:22,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 03:10:22,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:22,189 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:10:22,190 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 03:10:22,191 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 [2020-09-25 03:10:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 03:10:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 03:10:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:10:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 03:10:22,202 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 03:10:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:22,203 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 03:10:22,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:10:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 03:10:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 03:10:22,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:22,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:22,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:10:22,206 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:22,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 03:10:22,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:22,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855252182] [2020-09-25 03:10:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:22,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:22,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 03:10:22,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:22,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-09-25 03:10:22,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:10:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:22,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:22,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:22,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:22,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:10:22,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:22,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:22,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:23,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:23,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 03:10:23,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:23,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:10:23,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:23,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:23,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:23,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:23,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:23,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:23,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:23,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:10:23,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:10:23,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855252182] [2020-09-25 03:10:23,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:23,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:10:23,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398541494] [2020-09-25 03:10:23,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:10:23,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:23,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:10:23,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:10:23,348 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 03:10:23,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:23,529 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2020-09-25 03:10:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:10:23,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 03:10:23,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:23,533 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:10:23,533 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 03:10:23,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:10:23,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 03:10:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-09-25 03:10:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 03:10:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 03:10:23,557 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 33 [2020-09-25 03:10:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:23,558 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 03:10:23,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:10:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 03:10:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:10:23,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:23,564 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:23,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:10:23,565 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:23,566 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 03:10:23,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:23,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706014252] [2020-09-25 03:10:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:23,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:23,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:24,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:10:24,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:10:24,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-25 03:10:24,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 03:10:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:24,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:24,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:10:24,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:24,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:10:24,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:10:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-25 03:10:24,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:10:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:24,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:24,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:24,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:24,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:10:24,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:24,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:24,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:24,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:10:24,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:10:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:24,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:24,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:10:24,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:24,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:10:24,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706014252] [2020-09-25 03:10:24,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:24,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:10:24,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915974952] [2020-09-25 03:10:24,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:10:24,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:24,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:10:24,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:10:24,975 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 03:10:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:25,137 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2020-09-25 03:10:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:10:25,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 03:10:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:25,144 INFO L225 Difference]: With dead ends: 85 [2020-09-25 03:10:25,145 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:10:25,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:10:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:10:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-25 03:10:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 03:10:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-09-25 03:10:25,180 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 35 [2020-09-25 03:10:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:25,181 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-09-25 03:10:25,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:10:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-09-25 03:10:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:10:25,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:25,188 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:25,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:10:25,188 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:25,189 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 03:10:25,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:25,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369161758] [2020-09-25 03:10:25,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:25,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 03:10:30,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:10:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:10:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:30,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 03:10:30,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:30,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:30,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:10:30,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:30,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:30,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:30,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:30,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:33,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:10:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:10:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3428 [2020-09-25 03:10:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:10:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:10:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:33,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:33,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:33,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 03:10:33,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:10:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:33,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:33,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:33,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:33,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:33,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:33,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:33,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:33,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:33,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:33,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:33,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:10:33,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:33,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:33,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:33,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:33,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:33,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:10:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:33,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:33,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:33,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:33,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:33,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:10:34,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369161758] [2020-09-25 03:10:34,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:34,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:10:34,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139401542] [2020-09-25 03:10:34,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:10:34,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:34,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:10:34,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:10:34,002 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 9 states. [2020-09-25 03:10:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:34,255 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2020-09-25 03:10:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:10:34,256 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 03:10:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:34,259 INFO L225 Difference]: With dead ends: 99 [2020-09-25 03:10:34,259 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 03:10:34,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:10:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 03:10:34,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2020-09-25 03:10:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:10:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2020-09-25 03:10:34,277 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 51 [2020-09-25 03:10:34,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:34,277 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2020-09-25 03:10:34,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:10:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2020-09-25 03:10:34,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 03:10:34,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:34,281 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:34,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:10:34,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:34,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:34,282 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 03:10:34,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:34,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012655418] [2020-09-25 03:10:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:36,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 03:10:39,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:10:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 03:10:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:10:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:10:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:10:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:39,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:39,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:39,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:39,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:39,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:39,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 03:10:44,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:10:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 03:10:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:10:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:10:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:10:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:44,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:10:44,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:44,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:10:44,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:10:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:44,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:44,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:44,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:44,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:10:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 03:10:44,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:44,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:44,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:44,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:44,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:44,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:44,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 03:10:44,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012655418] [2020-09-25 03:10:44,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:44,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:10:44,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798195355] [2020-09-25 03:10:44,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:10:44,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:44,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:10:44,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:10:44,955 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand 10 states. [2020-09-25 03:10:45,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:45,291 INFO L93 Difference]: Finished difference Result 198 states and 317 transitions. [2020-09-25 03:10:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:10:45,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-25 03:10:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:45,294 INFO L225 Difference]: With dead ends: 198 [2020-09-25 03:10:45,294 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 03:10:45,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:10:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 03:10:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2020-09-25 03:10:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-25 03:10:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2020-09-25 03:10:45,312 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 131 transitions. Word has length 69 [2020-09-25 03:10:45,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:45,313 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 131 transitions. [2020-09-25 03:10:45,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:10:45,313 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2020-09-25 03:10:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 03:10:45,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:45,317 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:45,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:10:45,317 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:45,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 03:10:45,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:45,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270787737] [2020-09-25 03:10:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:47,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:47,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:48,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:50,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 03:10:50,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:10:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:10:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:10:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:10:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:50,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:50,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:50,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:50,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:50,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:52,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:52,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:10:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 03:10:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:55,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:55,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:55,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:57,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2148 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:10:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:57,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:57,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:57,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:57,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:10:57,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:57,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:57,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:57,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:57,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:57,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:57,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:10:57,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:57,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:57,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:57,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:10:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:57,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:57,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 03:10:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:58,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:10:58,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:10:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 921 [2020-09-25 03:10:58,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:10:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:58,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 03:10:58,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:58,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:59,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:59,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:59,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:59,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:59,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:59,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:59,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:59,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:59,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:10:59,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:59,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:59,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:10:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:59,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:59,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:59,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:59,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 54 proven. 35 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 03:10:59,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270787737] [2020-09-25 03:10:59,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:59,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 03:10:59,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250774699] [2020-09-25 03:10:59,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 03:10:59,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:59,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 03:10:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:10:59,222 INFO L87 Difference]: Start difference. First operand 96 states and 131 transitions. Second operand 20 states. [2020-09-25 03:10:59,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:59,670 INFO L93 Difference]: Finished difference Result 195 states and 288 transitions. [2020-09-25 03:10:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:10:59,671 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 101 [2020-09-25 03:10:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:59,673 INFO L225 Difference]: With dead ends: 195 [2020-09-25 03:10:59,673 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 03:10:59,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2020-09-25 03:10:59,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 03:10:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-09-25 03:10:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 03:10:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 125 transitions. [2020-09-25 03:10:59,696 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 125 transitions. Word has length 101 [2020-09-25 03:10:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:59,697 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 125 transitions. [2020-09-25 03:10:59,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 03:10:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2020-09-25 03:10:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 03:10:59,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:59,699 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:59,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:10:59,699 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:59,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 03:10:59,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:59,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042890266] [2020-09-25 03:10:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:00,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:00,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:01,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 03:11:04,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 03:11:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 03:11:04,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:04,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:04,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 03:11:04,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:04,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:04,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:04,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:04,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:04,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:09,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 03:11:09,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 03:11:09,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 03:11:09,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:11:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:11:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 03:11:09,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:09,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:10,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:11:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:11:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2386 [2020-09-25 03:11:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:11:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:12,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:12,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:11:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:11:12,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:12,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:12,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:11:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:12,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:12,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:12,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:12,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:11:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:12,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:12,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:12,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 03:11:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking...