/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 06:36:08,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:36:08,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:36:08,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:36:08,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:36:08,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:36:08,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:36:08,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:36:08,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:36:08,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:36:08,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:36:08,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:36:08,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:36:08,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:36:08,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:36:08,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:36:08,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:36:08,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:36:08,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:36:08,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:36:08,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:36:08,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:36:08,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:36:08,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:36:08,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:36:08,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:36:08,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:36:08,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:36:08,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:36:08,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:36:08,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:36:08,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:36:08,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:36:08,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:36:08,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:36:08,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:36:08,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:36:08,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:36:08,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:36:08,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:36:08,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:36:08,712 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 06:36:08,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:36:08,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:36:08,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:36:08,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:36:08,760 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:36:08,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:36:08,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:36:08,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:36:08,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:36:08,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:36:08,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:36:08,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:36:08,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:36:08,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:36:08,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:36:08,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:36:08,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:36:08,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:36:08,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:36:08,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:36:08,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:36:08,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:36:08,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:36:08,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:36:08,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:36:08,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:36:08,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:36:08,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:36:08,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:36:08,766 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:36:09,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:36:09,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:36:09,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:36:09,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:36:09,227 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:36:09,228 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 06:36:09,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15ceb5f0/4caf15f9c840422dbb8ab4bed48c88cb/FLAG314aa36eb [2020-09-25 06:36:09,866 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:36:09,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_6-1.c [2020-09-25 06:36:09,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15ceb5f0/4caf15f9c840422dbb8ab4bed48c88cb/FLAG314aa36eb [2020-09-25 06:36:10,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15ceb5f0/4caf15f9c840422dbb8ab4bed48c88cb [2020-09-25 06:36:10,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:36:10,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:36:10,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:36:10,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:36:10,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:36:10,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10, skipping insertion in model container [2020-09-25 06:36:10,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:36:10,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:36:10,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:36:10,509 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:36:10,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:36:10,542 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:36:10,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10 WrapperNode [2020-09-25 06:36:10,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:36:10,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:36:10,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:36:10,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:36:10,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (1/1) ... [2020-09-25 06:36:10,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:36:10,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:36:10,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:36:10,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:36:10,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (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 06:36:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:36:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:36:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 06:36:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 06:36:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:36:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:36:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:36:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 06:36:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 06:36:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:36:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:36:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:36:10,967 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:36:10,967 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:36:10,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:36:10 BoogieIcfgContainer [2020-09-25 06:36:10,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:36:10,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:36:10,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:36:10,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:36:10,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:36:10" (1/3) ... [2020-09-25 06:36:10,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:36:10, skipping insertion in model container [2020-09-25 06:36:10,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:36:10" (2/3) ... [2020-09-25 06:36:10,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:36:10, skipping insertion in model container [2020-09-25 06:36:10,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:36:10" (3/3) ... [2020-09-25 06:36:10,987 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_6-1.c [2020-09-25 06:36:11,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:36:11,015 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:36:11,040 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:36:11,073 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:36:11,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:36:11,073 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:36:11,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:36:11,074 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:36:11,074 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:36:11,074 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:36:11,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:36:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 06:36:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 06:36:11,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:11,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:36:11,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 06:36:11,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:11,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932208191] [2020-09-25 06:36:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:36:11,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 06:36:11,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:36:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:36:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:36:11,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:11,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:36:11,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:11,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:11,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:11,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 06:36:11,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:36:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:11,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:11,458 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 06:36:11,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932208191] [2020-09-25 06:36:11,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:36:11,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:36:11,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136260031] [2020-09-25 06:36:11,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:36:11,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:11,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:36:11,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:36:11,486 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 06:36:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:11,627 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 06:36:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:36:11,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 06:36:11,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:11,645 INFO L225 Difference]: With dead ends: 58 [2020-09-25 06:36:11,645 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 06:36:11,650 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 06:36:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 06:36:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 06:36:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 06:36:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 06:36:11,711 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 06:36:11,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:11,711 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 06:36:11,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:36:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 06:36:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 06:36:11,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:11,715 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 06:36:11,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:36:11,715 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:11,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:11,715 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 06:36:11,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:11,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905521492] [2020-09-25 06:36:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 06:36:11,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 06:36:11,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:36:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:11,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:36:11,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:11,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:11,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:11,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:11,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:11,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 06:36:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:11,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:36:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:11,914 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 06:36:11,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905521492] [2020-09-25 06:36:11,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:36:11,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:36:11,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539859680] [2020-09-25 06:36:11,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:36:11,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:11,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:36:11,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:36:11,919 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 06:36:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:11,991 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 06:36:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:36:11,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 06:36:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:11,995 INFO L225 Difference]: With dead ends: 50 [2020-09-25 06:36:11,995 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 06:36:11,996 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 06:36:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 06:36:12,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 06:36:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 06:36:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 06:36:12,010 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 06:36:12,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:12,011 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 06:36:12,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:36:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 06:36:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 06:36:12,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:12,013 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 06:36:12,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:36:12,014 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 06:36:12,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:12,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89647888] [2020-09-25 06:36:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:12,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:12,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 06:36:12,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:36:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-25 06:36:12,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:12,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:36:12,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:36:12,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:12,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:36:12,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:12,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:12,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:12,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:12,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:12,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:12,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:36:12,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:36:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 06:36:12,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:12,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:36:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:12,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:12,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:12,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:36:12,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:12,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:12,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:12,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:36:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:12,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:12,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:12,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:36:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:12,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:12,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:12,989 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 06:36:12,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89647888] [2020-09-25 06:36:12,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:36:12,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:36:12,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967274364] [2020-09-25 06:36:12,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:36:12,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:12,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:36:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:36:12,992 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 06:36:13,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:13,113 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 06:36:13,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:36:13,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 06:36:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:13,116 INFO L225 Difference]: With dead ends: 58 [2020-09-25 06:36:13,116 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 06:36:13,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 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 06:36:13,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 06:36:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 06:36:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 06:36:13,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 06:36:13,129 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 06:36:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:13,129 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 06:36:13,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:36:13,129 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 06:36:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 06:36:13,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:13,131 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 06:36:13,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:36:13,132 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:13,132 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 06:36:13,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:13,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359290847] [2020-09-25 06:36:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:13,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:13,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 06:36:13,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:36:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-25 06:36:13,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:13,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:36:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:13,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:13,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:13,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:13,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:13,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:13,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:13,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:14,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:36:14,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:36:14,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 06:36:14,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:14,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:36:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:14,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:14,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:14,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:14,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:36:14,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:14,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:14,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:36:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:14,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:36:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:14,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:36:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:14,165 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 06:36:14,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359290847] [2020-09-25 06:36:14,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:36:14,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:36:14,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571501301] [2020-09-25 06:36:14,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:36:14,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:14,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:36:14,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:36:14,169 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 06:36:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:14,319 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 06:36:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:36:14,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 06:36:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:14,322 INFO L225 Difference]: With dead ends: 110 [2020-09-25 06:36:14,322 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 06:36:14,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 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 06:36:14,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 06:36:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 06:36:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 06:36:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 06:36:14,337 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 06:36:14,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:14,337 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 06:36:14,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:36:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 06:36:14,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 06:36:14,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:14,341 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 06:36:14,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:36:14,341 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:14,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:14,342 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 06:36:14,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:14,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143814768] [2020-09-25 06:36:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:14,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:19,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 06:36:19,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:36:19,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:36:19,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:19,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:19,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:36:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:19,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:19,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:19,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:19,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:19,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 06:36:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:19,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:20,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:23,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:36:23,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:36:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3875 [2020-09-25 06:36:23,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:23,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 06:36:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:23,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:23,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:23,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:36:23,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:36:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:36:23,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:23,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:36:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:36:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:23,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:23,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:23,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:36:23,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:23,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:23,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:36:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:36:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:23,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:23,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:23,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:23,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:36:23,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:23,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:23,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:36:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 06:36:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:23,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:23,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:23,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:23,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:36:23,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:23,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:23,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:36:23,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143814768] [2020-09-25 06:36:23,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:36:23,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:36:23,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241926642] [2020-09-25 06:36:23,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:36:23,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:23,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:36:23,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:36:23,525 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 8 states. [2020-09-25 06:36:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:23,766 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2020-09-25 06:36:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:36:23,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 06:36:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:23,774 INFO L225 Difference]: With dead ends: 84 [2020-09-25 06:36:23,774 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 06:36:23,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:36:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 06:36:23,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 64. [2020-09-25 06:36:23,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 06:36:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2020-09-25 06:36:23,811 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 51 [2020-09-25 06:36:23,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:23,814 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2020-09-25 06:36:23,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:36:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2020-09-25 06:36:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 06:36:23,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:23,827 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2020-09-25 06:36:23,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:36:23,828 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:23,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-25 06:36:23,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:23,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931323341] [2020-09-25 06:36:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:23,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:25,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:36:25,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:36:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1688 [2020-09-25 06:36:25,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:25,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 06:36:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:25,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:25,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:25,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:25,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:25,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:25,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:25,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:27,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:36:27,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:36:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1697 [2020-09-25 06:36:27,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:27,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:27,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:36:27,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:27,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:27,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:36:27,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:36:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 06:36:27,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:27,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:36:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:36:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:27,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:27,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:27,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:36:27,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:27,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:27,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:36:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:27,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:27,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:27,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:36:27,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:27,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:27,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:36:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:27,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:27,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:27,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:36:27,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:27,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:27,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 06:36:27,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931323341] [2020-09-25 06:36:27,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:36:27,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:36:27,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094586399] [2020-09-25 06:36:27,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:36:27,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:27,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:36:27,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:36:27,710 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 9 states. [2020-09-25 06:36:27,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:27,938 INFO L93 Difference]: Finished difference Result 84 states and 115 transitions. [2020-09-25 06:36:27,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:36:27,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-09-25 06:36:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:27,945 INFO L225 Difference]: With dead ends: 84 [2020-09-25 06:36:27,945 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 06:36:27,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 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 06:36:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 06:36:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 62. [2020-09-25 06:36:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 06:36:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 06:36:27,972 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 52 [2020-09-25 06:36:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:27,972 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 06:36:27,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:36:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 06:36:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:36:27,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:27,983 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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 06:36:27,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:36:27,983 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:27,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 06:36:27,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:27,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050906401] [2020-09-25 06:36:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:28,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:30,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:30,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:30,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:31,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:32,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:36:32,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 06:36:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:36:32,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:32,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 06:36:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:33,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:33,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:33,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:33,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:33,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:33,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:33,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 06:36:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 06:36:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:36:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:36:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 06:36:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:36:38,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:36:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 06:36:38,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:36:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:36:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:36:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:36:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:36:38,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:36:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:36:38,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:36:38,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-09-25 06:36:38,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:36:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:38,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:38,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:36:38,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:38,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:36:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:38,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:38,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:38,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:36:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 22 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 06:36:38,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050906401] [2020-09-25 06:36:38,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:36:38,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 06:36:38,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240620410] [2020-09-25 06:36:38,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 06:36:38,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:38,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 06:36:38,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:36:38,916 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 12 states. [2020-09-25 06:36:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:39,268 INFO L93 Difference]: Finished difference Result 146 states and 228 transitions. [2020-09-25 06:36:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:36:39,269 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-25 06:36:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:39,271 INFO L225 Difference]: With dead ends: 146 [2020-09-25 06:36:39,271 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 06:36:39,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:36:39,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 06:36:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 06:36:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 06:36:39,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 125 transitions. [2020-09-25 06:36:39,287 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 125 transitions. Word has length 71 [2020-09-25 06:36:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:39,288 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 125 transitions. [2020-09-25 06:36:39,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 06:36:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2020-09-25 06:36:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 06:36:39,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:39,290 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 06:36:39,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:36:39,291 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:39,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:39,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 06:36:39,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:39,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017601616] [2020-09-25 06:36:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:40,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:40,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:44,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 06:36:44,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 06:36:44,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:36:44,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:44,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 06:36:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:44,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:44,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:44,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:44,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:44,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:44,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:44,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:46,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:49,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:49,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:36:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:49,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:49,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:49,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:49,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:50,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:36:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:36:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-09-25 06:36:50,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:50,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:36:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:36:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:50,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:50,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:50,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:36:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:50,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:50,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:50,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:50,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:50,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:36:50,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:50,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:36:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:50,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:50,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:36:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:50,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:36:50,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:50,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:36:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:50,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 06:36:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:50,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:50,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:36:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:50,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:50,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:36:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:36:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:36:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:50,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 06:36:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:50,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:51,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:36:51,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:36:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-09-25 06:36:51,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:51,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 06:36:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:51,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:36:51,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:36:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:36:51,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:51,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:51,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:51,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:51,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:36:51,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:51,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:36:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:51,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 06:36:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:51,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:51,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:51,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:51,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:51,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:51,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 32 proven. 53 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-25 06:36:51,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017601616] [2020-09-25 06:36:51,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:36:51,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:36:51,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450638106] [2020-09-25 06:36:51,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:36:51,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:36:51,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:36:51,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:36:51,253 INFO L87 Difference]: Start difference. First operand 90 states and 125 transitions. Second operand 10 states. [2020-09-25 06:36:51,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:36:51,491 INFO L93 Difference]: Finished difference Result 200 states and 325 transitions. [2020-09-25 06:36:51,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:36:51,492 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-09-25 06:36:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:36:51,495 INFO L225 Difference]: With dead ends: 200 [2020-09-25 06:36:51,495 INFO L226 Difference]: Without dead ends: 116 [2020-09-25 06:36:51,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:36:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-25 06:36:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 104. [2020-09-25 06:36:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-25 06:36:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2020-09-25 06:36:51,513 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 103 [2020-09-25 06:36:51,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:36:51,514 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2020-09-25 06:36:51,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:36:51,514 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2020-09-25 06:36:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 06:36:51,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:36:51,517 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-09-25 06:36:51,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:36:51,517 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:36:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:36:51,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1762181124, now seen corresponding path program 1 times [2020-09-25 06:36:51,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:36:51,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956327658] [2020-09-25 06:36:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:36:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:51,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:51,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:53,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:53,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:53,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:54,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:56,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 06:36:56,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 06:36:56,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:36:56,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:56,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:36:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:36:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 06:36:56,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:56,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:36:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:56,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:56,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:36:56,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:56,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:36:56,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:56,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:36:56,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:36:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:56,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:56,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:58,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:58,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:58,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:00,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 06:37:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 06:37:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 06:37:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:37:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-25 06:37:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:37:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:37:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:37:01,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:01,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:37:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:37:01,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:37:01,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:01,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:37:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:37:01,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:01,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:37:01,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:01,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:01,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:01,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:01,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:37:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:01,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:01,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:01,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:01,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:37:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:37:01,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:01,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:37:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:01,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 06:37:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:01,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:01,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:02,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:02,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:02,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:02,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking...