/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_20x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:36:33,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:36:33,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:36:33,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:36:33,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:36:33,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:36:33,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:36:33,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:36:33,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:36:33,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:36:33,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:36:33,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:36:33,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:36:33,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:36:33,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:36:33,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:36:33,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:36:33,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:36:33,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:36:33,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:36:33,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:36:33,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:36:33,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:36:33,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:36:33,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:36:33,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:36:33,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:36:33,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:36:33,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:36:33,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:36:33,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:36:33,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:36:33,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:36:33,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:36:33,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:36:33,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:36:33,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:36:33,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:36:33,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:36:33,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:36:33,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:36:33,989 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 [2020-10-14 07:36:34,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:36:34,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:36:34,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:36:34,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:36:34,023 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:36:34,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:36:34,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:36:34,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:36:34,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:36:34,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:36:34,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:36:34,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:36:34,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:36:34,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:36:34,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:36:34,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:36:34,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:36:34,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:36:34,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:36:34,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:36:34,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:36:34,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:36:34,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:36:34,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:36:34,027 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:36:34,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:36:34,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:36:34,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:36:34,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:36:34,363 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:36:34,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-2.c [2020-10-14 07:36:34,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3b01622b/e18583a4e64141b4b7d3e596c1ec978c/FLAGe292c149b [2020-10-14 07:36:34,871 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:36:34,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-2.c [2020-10-14 07:36:34,879 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3b01622b/e18583a4e64141b4b7d3e596c1ec978c/FLAGe292c149b [2020-10-14 07:36:35,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3b01622b/e18583a4e64141b4b7d3e596c1ec978c [2020-10-14 07:36:35,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:36:35,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:36:35,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:36:35,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:36:35,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:36:35,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a32a894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35, skipping insertion in model container [2020-10-14 07:36:35,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:36:35,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:36:35,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:36:35,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:36:35,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:36:35,500 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:36:35,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35 WrapperNode [2020-10-14 07:36:35,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:36:35,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:36:35,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:36:35,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:36:35,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (1/1) ... [2020-10-14 07:36:35,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:36:35,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:36:35,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:36:35,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:36:35,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (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 [2020-10-14 07:36:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:36:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:36:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-14 07:36:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:36:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:36:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-14 07:36:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:36:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:36:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:36:35,845 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:36:35,845 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:36:35,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:36:35 BoogieIcfgContainer [2020-10-14 07:36:35,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:36:35,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:36:35,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:36:35,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:36:35,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:36:35" (1/3) ... [2020-10-14 07:36:35,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716dee7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:36:35, skipping insertion in model container [2020-10-14 07:36:35,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:36:35" (2/3) ... [2020-10-14 07:36:35,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716dee7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:36:35, skipping insertion in model container [2020-10-14 07:36:35,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:36:35" (3/3) ... [2020-10-14 07:36:35,858 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-2.c [2020-10-14 07:36:35,870 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:36:35,879 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:36:35,895 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:36:35,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:36:35,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:36:35,928 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:36:35,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:36:35,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:36:35,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:36:35,929 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:36:35,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:36:35,954 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-14 07:36:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 07:36:35,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:35,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:35,966 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:35,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-14 07:36:35,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:35,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426897015] [2020-10-14 07:36:35,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:36:36,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-14 07:36:36,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:36:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:36:36,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 07:36:36,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:36:36,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:36,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:36,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:36:36,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:36:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:36:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:36:36,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426897015] [2020-10-14 07:36:36,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:36:36,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:36:36,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564359718] [2020-10-14 07:36:36,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:36:36,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:36,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:36:36,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:36:36,465 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-14 07:36:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:36,545 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-14 07:36:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:36:36,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-14 07:36:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:36,559 INFO L225 Difference]: With dead ends: 30 [2020-10-14 07:36:36,559 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 07:36:36,563 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 [2020-10-14 07:36:36,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 07:36:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 07:36:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 07:36:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-14 07:36:36,611 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-14 07:36:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:36,612 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-14 07:36:36,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:36:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-14 07:36:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 07:36:36,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:36,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:36,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:36:36,615 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:36,616 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-14 07:36:36,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:36,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978094183] [2020-10-14 07:36:36,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 07:36:36,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:36,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 07:36:36,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:36:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:36:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:36,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:36,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:36,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:36,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:36,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:36,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 07:36:36,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:36,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:36:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:36:36,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 07:36:37,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:37,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:36:37,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:37,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 07:36:37,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978094183] [2020-10-14 07:36:37,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:37,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 07:36:37,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782326492] [2020-10-14 07:36:37,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:36:37,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:37,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:36:37,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:36:37,084 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-10-14 07:36:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:37,154 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-14 07:36:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:36:37,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-14 07:36:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:37,155 INFO L225 Difference]: With dead ends: 25 [2020-10-14 07:36:37,155 INFO L226 Difference]: Without dead ends: 21 [2020-10-14 07:36:37,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:36:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-14 07:36:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-14 07:36:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-14 07:36:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-14 07:36:37,164 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-14 07:36:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:37,164 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-14 07:36:37,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:36:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-14 07:36:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 07:36:37,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:37,166 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:37,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:36:37,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:37,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:37,167 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2020-10-14 07:36:37,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:37,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132302472] [2020-10-14 07:36:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 07:36:37,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-14 07:36:37,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:36:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 07:36:37,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:37,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:36:37,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:37,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:36:37,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:36:37,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:37,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:36:37,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:37,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:36:37,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:37,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:37,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:36:37,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:37,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 07:36:37,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132302472] [2020-10-14 07:36:37,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:37,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 07:36:37,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875936472] [2020-10-14 07:36:37,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:36:37,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:37,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:36:37,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:36:37,659 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-14 07:36:37,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:37,730 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-14 07:36:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:36:37,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-14 07:36:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:37,732 INFO L225 Difference]: With dead ends: 28 [2020-10-14 07:36:37,732 INFO L226 Difference]: Without dead ends: 24 [2020-10-14 07:36:37,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:36:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-14 07:36:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-14 07:36:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 07:36:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-14 07:36:37,740 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-14 07:36:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:37,740 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-14 07:36:37,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:36:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-14 07:36:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 07:36:37,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:37,742 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:37,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:36:37,742 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:37,743 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times [2020-10-14 07:36:37,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:37,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949173175] [2020-10-14 07:36:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:37,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:37,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:36:38,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-14 07:36:38,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:36:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:36:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:38,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:38,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:38,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:38,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 07:36:38,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:36:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 07:36:38,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:38,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 07:36:38,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:36:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:38,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:38,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:38,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,316 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 07:36:38,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949173175] [2020-10-14 07:36:38,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:38,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:36:38,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678329219] [2020-10-14 07:36:38,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:36:38,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:38,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:36:38,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:36:38,319 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states. [2020-10-14 07:36:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:38,396 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-14 07:36:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:36:38,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-14 07:36:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:38,398 INFO L225 Difference]: With dead ends: 31 [2020-10-14 07:36:38,399 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 07:36:38,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:36:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 07:36:38,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-14 07:36:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 07:36:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-14 07:36:38,406 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-14 07:36:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:38,406 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-14 07:36:38,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:36:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-14 07:36:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 07:36:38,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:38,408 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:38,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:36:38,408 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash -183109604, now seen corresponding path program 4 times [2020-10-14 07:36:38,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:38,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306950034] [2020-10-14 07:36:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 07:36:38,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:38,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 07:36:38,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:36:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:36:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:38,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:38,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:38,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 07:36:38,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:36:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 07:36:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:38,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:38,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:38,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 07:36:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:38,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:39,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 07:36:39,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:39,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:39,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:39,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:36:39,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:39,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:39,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:39,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:39,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 07:36:39,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306950034] [2020-10-14 07:36:39,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:39,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:36:39,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018376832] [2020-10-14 07:36:39,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:36:39,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:36:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:36:39,166 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-14 07:36:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:39,290 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-14 07:36:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:36:39,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-14 07:36:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:39,292 INFO L225 Difference]: With dead ends: 34 [2020-10-14 07:36:39,293 INFO L226 Difference]: Without dead ends: 30 [2020-10-14 07:36:39,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:36:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-14 07:36:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-14 07:36:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 07:36:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-14 07:36:39,310 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-14 07:36:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:39,316 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-14 07:36:39,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:36:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-14 07:36:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 07:36:39,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:39,320 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:39,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:36:39,322 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:39,322 INFO L82 PathProgramCache]: Analyzing trace with hash -155447420, now seen corresponding path program 5 times [2020-10-14 07:36:39,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:39,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020227700] [2020-10-14 07:36:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-14 07:36:39,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-14 07:36:39,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:36:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:39,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:39,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:39,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:39,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:39,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:39,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:39,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:39,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:39,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:39,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:39,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:40,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 07:36:40,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:36:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:40,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:36:40,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 07:36:40,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:40,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:40,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 07:36:40,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:40,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:40,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:40,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 07:36:40,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:40,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:40,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:40,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:36:40,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:40,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:40,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 07:36:40,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020227700] [2020-10-14 07:36:40,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:40,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:36:40,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004384052] [2020-10-14 07:36:40,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:36:40,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:40,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:36:40,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:36:40,614 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2020-10-14 07:36:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:40,776 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-14 07:36:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:36:40,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-10-14 07:36:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:40,780 INFO L225 Difference]: With dead ends: 37 [2020-10-14 07:36:40,780 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 07:36:40,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:36:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 07:36:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-14 07:36:40,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-14 07:36:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-14 07:36:40,797 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-14 07:36:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:40,799 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-14 07:36:40,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:36:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-14 07:36:40,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 07:36:40,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:40,810 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:40,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:36:40,811 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:40,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:40,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1716183644, now seen corresponding path program 6 times [2020-10-14 07:36:40,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:40,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220455812] [2020-10-14 07:36:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:40,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-14 07:36:41,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-14 07:36:41,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:36:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 07:36:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:41,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:41,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:41,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:41,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:41,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:41,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 07:36:41,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 07:36:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 07:36:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:41,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 07:36:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:41,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:41,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:41,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:41,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 07:36:41,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:41,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:41,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:41,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:41,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:41,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:42,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:42,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 07:36:42,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:42,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:42,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:42,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:42,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:42,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:42,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 07:36:42,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:42,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:42,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:42,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:42,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:42,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:42,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:36:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:42,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:42,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:42,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:42,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:42,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:36:42,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:42,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:42,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 65 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-14 07:36:42,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220455812] [2020-10-14 07:36:42,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:42,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 07:36:42,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919920498] [2020-10-14 07:36:42,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 07:36:42,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:42,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 07:36:42,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:36:42,286 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-10-14 07:36:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:42,451 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-14 07:36:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:36:42,452 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-14 07:36:42,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:42,453 INFO L225 Difference]: With dead ends: 40 [2020-10-14 07:36:42,453 INFO L226 Difference]: Without dead ends: 36 [2020-10-14 07:36:42,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:36:42,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-14 07:36:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-14 07:36:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-14 07:36:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-14 07:36:42,465 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-14 07:36:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:42,466 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-14 07:36:42,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 07:36:42,467 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-14 07:36:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 07:36:42,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:42,469 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:42,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:36:42,470 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:42,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:42,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1079602236, now seen corresponding path program 7 times [2020-10-14 07:36:42,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:42,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876222712] [2020-10-14 07:36:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:42,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:36:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-10-14 07:36:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:36:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:36:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:43,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:43,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:43,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:43,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:43,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 07:36:43,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:36:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:43,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 07:36:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:43,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:43,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 07:36:43,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:43,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:36:43,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:43,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:43,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:43,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:43,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 07:36:43,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:43,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:43,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:43,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:44,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 07:36:44,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:44,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:44,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:44,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 07:36:44,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:44,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:36:44,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:44,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:36:44,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:36:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:44,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:44,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 25 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 07:36:44,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876222712] [2020-10-14 07:36:44,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:44,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 07:36:44,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281742012] [2020-10-14 07:36:44,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:36:44,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:44,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:36:44,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:36:44,421 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-10-14 07:36:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:44,581 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-14 07:36:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:36:44,582 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-10-14 07:36:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:44,583 INFO L225 Difference]: With dead ends: 43 [2020-10-14 07:36:44,583 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 07:36:44,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:36:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 07:36:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-14 07:36:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-14 07:36:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-14 07:36:44,590 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-14 07:36:44,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:44,591 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-14 07:36:44,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:36:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-14 07:36:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 07:36:44,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:44,592 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:44,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:36:44,593 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:44,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1035381916, now seen corresponding path program 8 times [2020-10-14 07:36:44,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:44,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164772195] [2020-10-14 07:36:44,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:44,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:36:45,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-14 07:36:45,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:36:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:45,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 07:36:45,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:45,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:45,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:45,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 07:36:45,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:36:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 07:36:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 07:36:45,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:36:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 07:36:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:45,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:36:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:45,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:46,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 07:36:46,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:46,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:46,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 07:36:46,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:46,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 07:36:46,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:46,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 07:36:46,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:36:46,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:46,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:46,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:46,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:46,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 10 proven. 105 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 07:36:46,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164772195] [2020-10-14 07:36:46,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:46,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 07:36:46,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589684973] [2020-10-14 07:36:46,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 07:36:46,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:46,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 07:36:46,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:36:46,553 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 14 states. [2020-10-14 07:36:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:46,710 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-14 07:36:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:36:46,711 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-14 07:36:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:46,712 INFO L225 Difference]: With dead ends: 46 [2020-10-14 07:36:46,712 INFO L226 Difference]: Without dead ends: 42 [2020-10-14 07:36:46,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:36:46,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-14 07:36:46,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-14 07:36:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 07:36:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-14 07:36:46,720 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-14 07:36:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:46,720 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-14 07:36:46,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 07:36:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-14 07:36:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:36:46,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:46,722 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:46,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:36:46,722 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:46,723 INFO L82 PathProgramCache]: Analyzing trace with hash 952137732, now seen corresponding path program 9 times [2020-10-14 07:36:46,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:46,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380883634] [2020-10-14 07:36:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:46,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:46,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:47,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:47,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 07:36:47,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:47,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1082 [2020-10-14 07:36:47,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:47,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:47,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:36:47,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:47,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 07:36:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:47,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:47,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:47,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:47,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:47,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:47,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:47,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:47,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:48,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:48,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:48,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-14 07:36:48,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:48,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:36:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:36:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:48,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:48,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:48,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 07:36:48,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:36:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:48,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:48,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:48,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:48,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 07:36:48,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:48,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:48,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:36:48,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:48,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 07:36:49,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:36:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:49,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 07:36:49,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:49,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:49,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 07:36:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:49,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 07:36:49,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:49,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:36:49,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:36:49,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:49,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:49,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:49,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:49,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:49,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:36:49,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:49,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:49,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:49,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:49,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 20 proven. 136 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-14 07:36:49,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380883634] [2020-10-14 07:36:49,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:49,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 07:36:49,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532843563] [2020-10-14 07:36:49,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 07:36:49,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:49,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 07:36:49,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:36:49,758 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states. [2020-10-14 07:36:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:49,943 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-14 07:36:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:36:49,943 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-10-14 07:36:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:49,944 INFO L225 Difference]: With dead ends: 49 [2020-10-14 07:36:49,945 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 07:36:49,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:36:49,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 07:36:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-14 07:36:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 07:36:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-14 07:36:49,958 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-14 07:36:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:49,959 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-14 07:36:49,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 07:36:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-14 07:36:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 07:36:49,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:49,960 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:49,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:36:49,961 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:49,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:49,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1540970204, now seen corresponding path program 10 times [2020-10-14 07:36:49,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:49,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55611725] [2020-10-14 07:36:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:50,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:50,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:36:50,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:50,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-10-14 07:36:50,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:50,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:50,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 07:36:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:50,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 07:36:50,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:50,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:50,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:50,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:50,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:50,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:36:50,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:50,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:50,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:50,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:50,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:50,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:51,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-14 07:36:51,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 07:36:51,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:51,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 07:36:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:51,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:51,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:51,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:51,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:51,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-14 07:36:51,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:51,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:36:51,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:51,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:51,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-14 07:36:52,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:36:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:52,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 07:36:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:36:52,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 07:36:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:36:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:52,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 07:36:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 07:36:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:52,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:36:52,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:52,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:36:52,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:52,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:36:52,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:52,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:52,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:52,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:52,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:36:52,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:52,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 8 proven. 192 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 07:36:53,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55611725] [2020-10-14 07:36:53,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:53,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 07:36:53,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073399378] [2020-10-14 07:36:53,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:36:53,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:53,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:36:53,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:36:53,014 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-10-14 07:36:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:53,212 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-14 07:36:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:36:53,213 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-10-14 07:36:53,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:53,214 INFO L225 Difference]: With dead ends: 52 [2020-10-14 07:36:53,215 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 07:36:53,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:36:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 07:36:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 07:36:53,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 07:36:53,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-14 07:36:53,221 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-14 07:36:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:53,222 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-14 07:36:53,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:36:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-14 07:36:53,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 07:36:53,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:53,223 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:53,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:36:53,224 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:53,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:53,224 INFO L82 PathProgramCache]: Analyzing trace with hash -2010530748, now seen corresponding path program 11 times [2020-10-14 07:36:53,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:53,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124045271] [2020-10-14 07:36:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:53,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:54,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:54,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 07:36:54,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1439 [2020-10-14 07:36:54,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:54,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:36:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:36:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:54,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:54,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:54,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:54,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:55,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:55,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:36:55,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-14 07:36:55,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:55,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:36:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 07:36:55,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:55,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:55,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:55,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:55,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:36:55,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:55,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-14 07:36:55,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:55,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:36:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:36:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:55,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:55,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:55,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:55,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:36:55,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:55,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-14 07:36:55,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:55,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:36:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:55,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:36:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:55,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:36:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 07:36:56,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:36:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:36:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:56,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:36:56,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 07:36:56,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:36:56,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:36:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:56,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:36:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 07:36:56,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:36:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:36:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:56,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:36:56,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 07:36:56,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:36:56,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:36:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:36:56,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 07:36:56,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:36:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:36:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:36:56,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 07:36:56,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:36:56,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:36:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:56,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:36:56,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 07:36:56,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:36:56,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:36:56,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:56,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:56,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:56,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:56,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:36:56,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:56,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:36:56,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:56,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:56,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:36:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:36:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:57,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:36:57,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:36:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:57,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:36:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:36:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:36:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 20 proven. 227 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-10-14 07:36:57,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124045271] [2020-10-14 07:36:57,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:36:57,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:36:57,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950409761] [2020-10-14 07:36:57,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:36:57,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:36:57,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:36:57,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:36:57,123 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-10-14 07:36:57,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:36:57,420 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-14 07:36:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:36:57,421 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-14 07:36:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:36:57,422 INFO L225 Difference]: With dead ends: 55 [2020-10-14 07:36:57,422 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 07:36:57,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-10-14 07:36:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 07:36:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-14 07:36:57,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-14 07:36:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-14 07:36:57,441 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-14 07:36:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:36:57,441 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-14 07:36:57,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:36:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-14 07:36:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 07:36:57,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:36:57,451 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:36:57,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:36:57,452 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:36:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:36:57,452 INFO L82 PathProgramCache]: Analyzing trace with hash -986521316, now seen corresponding path program 12 times [2020-10-14 07:36:57,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:36:57,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349809487] [2020-10-14 07:36:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:36:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:57,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 07:36:59,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:36:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1557 [2020-10-14 07:36:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:36:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:36:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 07:36:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:36:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:36:59,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:36:59,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:36:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:36:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:36:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:36:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:36:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:36:59,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:36:59,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:36:59,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:36:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 07:36:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:36:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:36:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:36:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-14 07:37:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:00,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-14 07:37:00,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:00,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-14 07:37:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:00,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:00,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:01,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-14 07:37:01,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:01,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:01,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 07:37:01,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:01,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:01,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 07:37:01,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:01,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 07:37:01,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:01,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:01,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 07:37:01,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:01,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 07:37:01,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:01,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:01,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:37:01,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:01,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:01,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:01,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:01,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:01,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:01,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:01,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:01,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:37:01,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:01,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:01,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:37:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 258 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-14 07:37:02,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349809487] [2020-10-14 07:37:02,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:02,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 07:37:02,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31316761] [2020-10-14 07:37:02,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 07:37:02,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:02,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 07:37:02,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:37:02,044 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-10-14 07:37:02,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:02,261 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-14 07:37:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:37:02,262 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-14 07:37:02,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:02,263 INFO L225 Difference]: With dead ends: 58 [2020-10-14 07:37:02,263 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 07:37:02,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-10-14 07:37:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 07:37:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-14 07:37:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 07:37:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-14 07:37:02,277 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-14 07:37:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:02,280 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-14 07:37:02,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 07:37:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-14 07:37:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-14 07:37:02,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:02,281 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:02,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:37:02,282 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:02,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1073897604, now seen corresponding path program 13 times [2020-10-14 07:37:02,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:02,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627628723] [2020-10-14 07:37:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:02,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:03,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:03,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 07:37:03,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:03,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-10-14 07:37:03,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:03,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:37:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:03,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:03,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:03,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:03,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:03,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:03,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:03,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:03,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:04,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:04,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:04,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 07:37:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:04,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:04,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:04,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:04,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-14 07:37:04,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:04,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:04,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:04,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:05,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:05,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-14 07:37:05,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:05,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:05,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:05,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:05,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-14 07:37:05,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:05,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:05,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:05,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:05,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:05,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:05,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 07:37:05,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:05,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:05,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:05,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:05,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:05,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:05,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:05,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 07:37:05,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:05,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:05,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:05,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:05,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:05,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:06,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 07:37:06,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:06,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:06,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:37:06,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:06,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:06,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:06,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 07:37:06,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:06,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:37:06,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:06,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 07:37:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:06,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:37:06,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:06,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:06,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:06,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:37:06,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:06,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:06,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:37:06,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:06,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:06,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:06,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:37:06,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:06,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 76 proven. 269 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-14 07:37:06,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627628723] [2020-10-14 07:37:06,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:06,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 07:37:06,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801076293] [2020-10-14 07:37:06,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 07:37:06,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:06,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 07:37:06,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:37:06,687 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states. [2020-10-14 07:37:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:06,898 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-14 07:37:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 07:37:06,899 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-14 07:37:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:06,900 INFO L225 Difference]: With dead ends: 61 [2020-10-14 07:37:06,900 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 07:37:06,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 07:37:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 07:37:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-14 07:37:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-14 07:37:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-14 07:37:06,907 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-14 07:37:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:06,907 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-14 07:37:06,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 07:37:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-14 07:37:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 07:37:06,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:06,908 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:06,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:37:06,909 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:06,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1572648100, now seen corresponding path program 14 times [2020-10-14 07:37:06,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:06,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601871968] [2020-10-14 07:37:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:06,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:07,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:08,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:08,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 07:37:08,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1471 [2020-10-14 07:37:08,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:08,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 07:37:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:08,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:37:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:08,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:08,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:08,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:08,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:08,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:08,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:08,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 07:37:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 07:37:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:09,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-14 07:37:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:09,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:09,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:10,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:10,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:10,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-14 07:37:10,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:10,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:10,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 07:37:10,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:11,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 07:37:11,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:11,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:11,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:37:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:37:11,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:11,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:37:11,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:11,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:11,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:37:11,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:11,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:11,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:11,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:37:11,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:11,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:11,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:11,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:11,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:11,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:11,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:11,522 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 36 proven. 349 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-10-14 07:37:11,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601871968] [2020-10-14 07:37:11,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:11,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 07:37:11,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642631561] [2020-10-14 07:37:11,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 07:37:11,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:11,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 07:37:11,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-10-14 07:37:11,524 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 20 states. [2020-10-14 07:37:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:11,768 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-14 07:37:11,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:37:11,769 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-10-14 07:37:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:11,770 INFO L225 Difference]: With dead ends: 64 [2020-10-14 07:37:11,770 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 07:37:11,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:37:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 07:37:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-14 07:37:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-14 07:37:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-14 07:37:11,777 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-14 07:37:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:11,777 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-14 07:37:11,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 07:37:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-14 07:37:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 07:37:11,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:11,779 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:11,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:37:11,779 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:11,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1584030916, now seen corresponding path program 15 times [2020-10-14 07:37:11,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:11,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709753452] [2020-10-14 07:37:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:11,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:12,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 07:37:13,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1357 [2020-10-14 07:37:13,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 07:37:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:13,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 07:37:13,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:13,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:13,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:13,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:13,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 07:37:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:13,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:13,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:14,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:14,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:14,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:14,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:14,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:15,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 07:37:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 07:37:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:15,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:15,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:15,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:37:15,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:15,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:15,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:15,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:15,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:37:15,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:15,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:15,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:15,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:15,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:15,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:37:15,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:15,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:15,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:15,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 47 proven. 363 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-14 07:37:15,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709753452] [2020-10-14 07:37:15,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:15,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 07:37:15,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014117601] [2020-10-14 07:37:15,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 07:37:15,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:15,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 07:37:15,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:37:15,877 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 21 states. [2020-10-14 07:37:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:16,133 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-14 07:37:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 07:37:16,134 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 103 [2020-10-14 07:37:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:16,135 INFO L225 Difference]: With dead ends: 67 [2020-10-14 07:37:16,135 INFO L226 Difference]: Without dead ends: 63 [2020-10-14 07:37:16,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 07:37:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-14 07:37:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-14 07:37:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-14 07:37:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-14 07:37:16,142 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-14 07:37:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:16,143 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-14 07:37:16,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 07:37:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-14 07:37:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 07:37:16,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:16,144 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:16,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:37:16,145 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:16,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:16,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1066046876, now seen corresponding path program 16 times [2020-10-14 07:37:16,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:16,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200266477] [2020-10-14 07:37:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:17,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:17,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 07:37:17,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1296 [2020-10-14 07:37:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:17,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 07:37:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 07:37:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:17,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:17,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:18,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:18,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:18,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 07:37:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:18,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:37:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:18,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:18,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:18,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:18,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:18,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:18,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:18,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:19,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:19,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-14 07:37:19,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:19,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:19,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:19,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:20,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 07:37:20,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:20,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:20,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 07:37:20,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:20,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:20,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:20,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 07:37:20,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:20,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:20,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:37:20,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:20,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:20,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:37:20,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:20,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:20,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:20,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:20,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:20,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:20,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:20,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:20,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:37:20,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:20,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:20,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:20,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:20,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:20,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 54 proven. 489 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2020-10-14 07:37:20,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200266477] [2020-10-14 07:37:20,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:20,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 07:37:20,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603451254] [2020-10-14 07:37:20,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 07:37:20,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:20,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 07:37:20,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:37:20,780 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-10-14 07:37:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:21,038 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-14 07:37:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 07:37:21,040 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 109 [2020-10-14 07:37:21,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:21,041 INFO L225 Difference]: With dead ends: 70 [2020-10-14 07:37:21,042 INFO L226 Difference]: Without dead ends: 66 [2020-10-14 07:37:21,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 07:37:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-14 07:37:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-14 07:37:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-14 07:37:21,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-14 07:37:21,050 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-14 07:37:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:21,050 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-14 07:37:21,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 07:37:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-14 07:37:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 07:37:21,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:21,052 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:21,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 07:37:21,053 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:21,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1300351236, now seen corresponding path program 17 times [2020-10-14 07:37:21,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:21,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230524758] [2020-10-14 07:37:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:21,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 07:37:22,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:22,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 07:37:22,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:22,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:22,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:22,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:22,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 07:37:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 07:37:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:22,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:37:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:23,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:23,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:23,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:23,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:37:23,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:23,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:23,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:23,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:24,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:24,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-14 07:37:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:24,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:24,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:24,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 07:37:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:24,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:24,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:24,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:24,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:24,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:24,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:24,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 07:37:24,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:24,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:24,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:24,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:24,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:24,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:25,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 07:37:25,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:25,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 07:37:25,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:25,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 07:37:25,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:25,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:37:25,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:25,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:37:25,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:37:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:25,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:37:25,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:25,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:25,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:25,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:25,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:25,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:25,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:25,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:25,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:25,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:25,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:25,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:25,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 84 proven. 466 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2020-10-14 07:37:25,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230524758] [2020-10-14 07:37:25,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:25,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 07:37:25,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219614160] [2020-10-14 07:37:25,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 07:37:25,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:25,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 07:37:25,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:37:25,960 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 23 states. [2020-10-14 07:37:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:26,252 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-14 07:37:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:37:26,253 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115 [2020-10-14 07:37:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:26,254 INFO L225 Difference]: With dead ends: 73 [2020-10-14 07:37:26,254 INFO L226 Difference]: Without dead ends: 69 [2020-10-14 07:37:26,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 07:37:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-14 07:37:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-14 07:37:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-14 07:37:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-14 07:37:26,266 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-14 07:37:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:26,267 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-14 07:37:26,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 07:37:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-14 07:37:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 07:37:26,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:26,268 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:26,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 07:37:26,268 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:26,269 INFO L82 PathProgramCache]: Analyzing trace with hash 227065820, now seen corresponding path program 18 times [2020-10-14 07:37:26,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:26,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341762890] [2020-10-14 07:37:26,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:26,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:28,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:28,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 07:37:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-10-14 07:37:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:28,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 07:37:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 07:37:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:28,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:28,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:28,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:28,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:28,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 07:37:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:29,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:29,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:29,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 07:37:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:29,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:29,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:29,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:37:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:30,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:37:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:30,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:30,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:30,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:30,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:30,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:30,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:30,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:30,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:30,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:30,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:31,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:31,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:31,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:31,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:31,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:31,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:31,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:31,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:31,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:31,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-14 07:37:31,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:31,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:31,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:31,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:31,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:31,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:31,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:31,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:31,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:31,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:31,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:32,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:32,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:32,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 07:37:32,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:32,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:32,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:32,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 07:37:32,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:32,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:37:32,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:32,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:32,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:32,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:37:32,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:32,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:32,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:32,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:32,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:32,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:32,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:37:32,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:32,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:32,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:32,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:32,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:32,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:32,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:32,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:32,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:32,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 74 proven. 571 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-14 07:37:32,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341762890] [2020-10-14 07:37:32,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:32,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 07:37:32,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872870873] [2020-10-14 07:37:32,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 07:37:32,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:32,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 07:37:32,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-10-14 07:37:32,676 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2020-10-14 07:37:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:32,965 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-14 07:37:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 07:37:32,966 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-10-14 07:37:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:32,967 INFO L225 Difference]: With dead ends: 76 [2020-10-14 07:37:32,967 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 07:37:32,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 07:37:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 07:37:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-14 07:37:32,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 07:37:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-14 07:37:32,974 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-14 07:37:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:32,975 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-14 07:37:32,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 07:37:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-14 07:37:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 07:37:32,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:32,976 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:32,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 07:37:32,977 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash -479687356, now seen corresponding path program 19 times [2020-10-14 07:37:32,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:32,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89955905] [2020-10-14 07:37:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:33,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 07:37:35,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:37:35,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2489 [2020-10-14 07:37:35,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 07:37:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:37:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:37:35,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:35,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:35,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:35,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:35,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:35,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:35,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:36,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:36,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 07:37:36,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 07:37:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:36,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:36,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:37,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:37,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 07:37:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:37,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:37,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 07:37:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:37,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:38,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 07:37:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:37:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 07:37:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:37:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:38,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:38,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:38,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 07:37:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:38,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:39,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:39,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:39,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 07:37:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:39,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:39,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:39,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:39,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:39,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 07:37:39,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:39,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 07:37:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:39,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:40,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-14 07:37:40,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 07:37:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:40,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:40,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:40,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:40,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:40,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:40,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 07:37:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 07:37:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:40,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 07:37:40,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 07:37:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:40,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:40,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:40,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 07:37:40,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:37:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:40,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:40,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 07:37:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 07:37:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:40,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 07:37:40,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 07:37:40,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:40,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:40,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:40,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:37:40,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:37:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:40,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:40,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:40,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:37:40,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:37:40,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:40,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:40,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:37:40,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:40,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:40,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:40,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:40,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:40,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:40,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:37:40,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:40,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:37:40,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:41,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:41,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:41,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:41,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:41,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:41,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 59 proven. 661 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-10-14 07:37:41,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89955905] [2020-10-14 07:37:41,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:41,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 07:37:41,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574606350] [2020-10-14 07:37:41,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 07:37:41,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:41,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 07:37:41,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-10-14 07:37:41,122 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states. [2020-10-14 07:37:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:41,455 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-14 07:37:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 07:37:41,456 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2020-10-14 07:37:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:41,457 INFO L225 Difference]: With dead ends: 79 [2020-10-14 07:37:41,458 INFO L226 Difference]: Without dead ends: 75 [2020-10-14 07:37:41,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 07:37:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-14 07:37:41,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-14 07:37:41,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-14 07:37:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-14 07:37:41,464 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-14 07:37:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:41,465 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-14 07:37:41,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 07:37:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-14 07:37:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 07:37:41,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:41,466 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:41,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 07:37:41,467 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:41,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1598174692, now seen corresponding path program 20 times [2020-10-14 07:37:41,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:41,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482554168] [2020-10-14 07:37:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:43,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-14 07:37:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1766 [2020-10-14 07:37:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:43,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 86 [2020-10-14 07:37:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:37:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 07:37:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:43,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:43,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:43,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:37:43,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:43,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:43,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:43,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:45,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:45,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 07:37:45,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2413 [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 85 [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 07:37:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:45,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:47,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1592 [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:47,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 82 [2020-10-14 07:37:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-14 07:37:47,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:47,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:48,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 07:37:48,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-10-14 07:37:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:48,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-14 07:37:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:48,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 07:37:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:37:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:48,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:50,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:50,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 07:37:50,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:50,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-10-14 07:37:50,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:50,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-14 07:37:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:50,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 07:37:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:50,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:51,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:51,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 07:37:51,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:51,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-10-14 07:37:51,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:51,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:51,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-14 07:37:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:37:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:51,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:51,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:52,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-14 07:37:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:52,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 07:37:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:52,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:52,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:53,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:53,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 07:37:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 07:37:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:53,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:53,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-14 07:37:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 07:37:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:53,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:54,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:54,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:37:54,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:54,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-10-14 07:37:54,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:54,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-14 07:37:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:54,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 07:37:54,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:54,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:54,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:54,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:37:54,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:54,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 07:37:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:54,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:54,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:55,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:55,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 07:37:55,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:55,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-14 07:37:55,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:55,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-14 07:37:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:55,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 07:37:55,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:55,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:55,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:55,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:55,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:37:55,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-14 07:37:55,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:55,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 07:37:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 07:37:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:55,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:55,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:55,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 07:37:55,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:37:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:55,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:55,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 07:37:56,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 07:37:56,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 07:37:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:37:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 07:37:56,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 07:37:56,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 07:37:56,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:37:56,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:37:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 07:37:56,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 07:37:56,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 07:37:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 07:37:56,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 07:37:56,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 07:37:56,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 07:37:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 07:37:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:37:56,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:37:56,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 07:37:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:37:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 07:37:56,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:37:56,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:37:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:37:56,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:56,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:37:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:37:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:56,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:56,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:56,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:56,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:37:56,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:56,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 119 proven. 88 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2020-10-14 07:37:56,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482554168] [2020-10-14 07:37:56,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:56,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 07:37:56,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015003368] [2020-10-14 07:37:56,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:37:56,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:56,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:37:56,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:37:56,951 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 8 states. [2020-10-14 07:37:57,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:57,020 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-10-14 07:37:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:37:57,021 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-10-14 07:37:57,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:57,022 INFO L225 Difference]: With dead ends: 75 [2020-10-14 07:37:57,022 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 07:37:57,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:37:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 07:37:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 07:37:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 07:37:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 07:37:57,024 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2020-10-14 07:37:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:57,025 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 07:37:57,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:37:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 07:37:57,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 07:37:57,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 07:37:57,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 07:37:57,067 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 07:37:57,068 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:37:57,068 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:37:57,068 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 07:37:57,068 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 07:37:57,068 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 07:37:57,068 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-10-14 07:37:57,068 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-10-14 07:37:57,069 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-14 07:37:57,069 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-10-14 07:37:57,069 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-10-14 07:37:57,071 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-10-14 07:37:57,071 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-14 07:37:57,072 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-10-14 07:37:57,072 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-10-14 07:37:57,072 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-14 07:37:57,072 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-10-14 07:37:57,072 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= main_~a~0 20) [2020-10-14 07:37:57,072 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-10-14 07:37:57,072 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-10-14 07:37:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:37:57 BoogieIcfgContainer [2020-10-14 07:37:57,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:37:57,088 INFO L168 Benchmark]: Toolchain (without parser) took 81818.63 ms. Allocated memory was 147.8 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 104.3 MB in the beginning and 670.1 MB in the end (delta: -565.8 MB). Peak memory consumption was 446.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,091 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.29 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 94.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,091 INFO L168 Benchmark]: Boogie Preprocessor took 28.31 ms. Allocated memory is still 147.8 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,095 INFO L168 Benchmark]: RCFGBuilder took 319.22 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.5 MB in the beginning and 172.4 MB in the end (delta: -79.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,096 INFO L168 Benchmark]: TraceAbstraction took 81227.77 ms. Allocated memory was 203.9 MB in the beginning and 1.2 GB in the end (delta: 955.8 MB). Free memory was 171.5 MB in the beginning and 670.1 MB in the end (delta: -498.6 MB). Peak memory consumption was 457.2 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:57,103 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.29 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 94.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.31 ms. Allocated memory is still 147.8 MB. Free memory was 94.8 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 319.22 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.5 MB in the beginning and 172.4 MB in the end (delta: -79.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 81227.77 ms. Allocated memory was 203.9 MB in the beginning and 1.2 GB in the end (delta: 955.8 MB). Free memory was 171.5 MB in the beginning and 670.1 MB in the end (delta: -498.6 MB). Peak memory consumption was 457.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.1s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 848 SDslu, 1220 SDs, 0 SdLazy, 892 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1031 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 488 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2673 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 76.0s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1512 ConstructedInterpolants, 0 QuantifiedInterpolants, 456366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 4388/8820 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...