/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:14:36,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:14:36,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:14:36,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:14:36,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:14:36,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:14:36,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:14:36,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:14:36,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:14:36,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:14:36,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:14:36,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:14:36,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:14:36,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:14:36,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:14:36,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:14:36,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:14:36,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:14:36,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:14:36,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:14:36,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:14:36,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:14:36,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:14:36,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:14:36,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:14:36,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:14:36,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:14:36,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:14:36,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:14:36,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:14:36,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:14:36,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:14:36,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:14:36,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:14:36,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:14:36,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:14:36,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:14:36,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:14:36,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:14:36,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:14:36,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:14:36,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:14:37,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:14:37,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:14:37,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:14:37,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:14:37,006 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:14:37,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:14:37,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:14:37,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:14:37,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:14:37,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:14:37,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:14:37,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:14:37,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:14:37,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:14:37,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:14:37,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:14:37,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:14:37,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:14:37,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:14:37,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:14:37,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:14:37,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:14:37,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:14:37,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:14:37,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:14:37,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:14:37,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:14:37,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:14:37,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:14:37,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:14:37,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:14:37,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:14:37,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:14:37,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:14:37,484 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:14:37,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 12:14:37,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dae20ff/ecfa97420b5c484092ebe35070c457f9/FLAG0c343ce77 [2020-09-25 12:14:38,086 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:14:38,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 12:14:38,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dae20ff/ecfa97420b5c484092ebe35070c457f9/FLAG0c343ce77 [2020-09-25 12:14:38,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dae20ff/ecfa97420b5c484092ebe35070c457f9 [2020-09-25 12:14:38,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:14:38,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:14:38,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:38,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:14:38,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:14:38,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a61b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38, skipping insertion in model container [2020-09-25 12:14:38,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:14:38,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:14:38,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:38,714 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:14:38,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:38,748 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:14:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38 WrapperNode [2020-09-25 12:14:38,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:38,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:14:38,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:14:38,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:14:38,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... [2020-09-25 12:14:38,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:14:38,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:14:38,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:14:38,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:14:38,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:14:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:14:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:14:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 12:14:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:14:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:14:39,169 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:14:39,169 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:14:39,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:39 BoogieIcfgContainer [2020-09-25 12:14:39,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:14:39,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:14:39,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:14:39,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:14:39,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:14:38" (1/3) ... [2020-09-25 12:14:39,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331cf143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:39, skipping insertion in model container [2020-09-25 12:14:39,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:38" (2/3) ... [2020-09-25 12:14:39,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331cf143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:39, skipping insertion in model container [2020-09-25 12:14:39,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:39" (3/3) ... [2020-09-25 12:14:39,202 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-2.c [2020-09-25 12:14:39,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:14:39,230 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:14:39,267 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:14:39,299 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:14:39,299 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:14:39,299 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:14:39,299 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:14:39,299 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:14:39,300 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:14:39,300 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:14:39,300 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:14:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 12:14:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 12:14:39,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:39,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:39,330 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:39,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:39,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 12:14:39,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:39,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543181688] [2020-09-25 12:14:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:39,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:39,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:14:39,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:14:39,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:39,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:14:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:14:39,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:39,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:39,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:39,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:39,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:39,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:39,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:39,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:39,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:39,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:39,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:39,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:39,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:39,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 12:14:39,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:39,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:39,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:14:39,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543181688] [2020-09-25 12:14:39,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:39,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:39,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210316851] [2020-09-25 12:14:39,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:39,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:39,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:39,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:39,754 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 12:14:39,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:39,881 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 12:14:39,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:14:39,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 12:14:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:39,898 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:14:39,898 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 12:14:39,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 12:14:39,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 12:14:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:39,959 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 12:14:39,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:39,960 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:39,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 12:14:39,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:39,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:39,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:14:39,964 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:39,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:39,964 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 12:14:39,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:39,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095247094] [2020-09-25 12:14:39,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 12:14:40,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 12:14:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:40,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:40,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 12:14:40,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:40,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:14:40,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095247094] [2020-09-25 12:14:40,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:40,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:40,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144779146] [2020-09-25 12:14:40,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:40,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:40,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:40,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:40,177 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 12:14:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:40,247 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 12:14:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:14:40,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 12:14:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:40,249 INFO L225 Difference]: With dead ends: 36 [2020-09-25 12:14:40,250 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 12:14:40,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 12:14:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 12:14:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:40,259 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 12:14:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:40,260 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:40,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 12:14:40,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:40,262 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:40,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:14:40,263 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 12:14:40,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:40,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067444447] [2020-09-25 12:14:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 12:14:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-25 12:14:40,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:14:40,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:14:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:40,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:40,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:40,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:41,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:41,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 12:14:41,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:41,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:14:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:14:41,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:14:41,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067444447] [2020-09-25 12:14:41,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:41,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:14:41,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408578513] [2020-09-25 12:14:41,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:14:41,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:41,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:14:41,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:41,257 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 12:14:41,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:41,340 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 12:14:41,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:14:41,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 12:14:41,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:41,343 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:14:41,343 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 12:14:41,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 12:14:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 12:14:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 12:14:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 12:14:41,355 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 12:14:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:41,355 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 12:14:41,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:14:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 12:14:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 12:14:41,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:41,358 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:41,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:14:41,359 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 12:14:41,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:41,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74837536] [2020-09-25 12:14:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 12:14:41,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-09-25 12:14:41,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:41,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:41,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:14:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:41,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:41,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:41,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:41,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:41,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:14:42,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-09-25 12:14:42,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:14:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:14:42,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:42,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:14:42,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:42,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:14:42,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74837536] [2020-09-25 12:14:42,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:42,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:14:42,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280167948] [2020-09-25 12:14:42,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:14:42,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:42,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:14:42,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:42,589 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 12:14:42,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:42,746 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 12:14:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:42,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 12:14:42,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:42,753 INFO L225 Difference]: With dead ends: 88 [2020-09-25 12:14:42,757 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 12:14:42,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:42,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 12:14:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 12:14:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 12:14:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 12:14:42,788 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 12:14:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:42,789 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 12:14:42,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:14:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 12:14:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 12:14:42,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:42,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:42,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:14:42,802 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:42,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:42,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 12:14:42,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:42,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952225310] [2020-09-25 12:14:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:43,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:47,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:14:47,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:14:47,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:47,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 12:14:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:47,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:47,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:47,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:47,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:14:47,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:47,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:47,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:47,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:48,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:49,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:51,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:51,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:14:51,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:51,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3981 [2020-09-25 12:14:51,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:51,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:51,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:51,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:51,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:14:51,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:51,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:51,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:51,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:51,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:51,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 12:14:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:51,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:51,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:51,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:51,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:51,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:51,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:51,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:51,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:51,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:51,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:51,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:51,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:51,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:51,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:51,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:52,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:52,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:14:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:14:52,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952225310] [2020-09-25 12:14:52,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:52,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:52,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419886354] [2020-09-25 12:14:52,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:52,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:52,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:52,049 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 7 states. [2020-09-25 12:14:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:52,205 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-09-25 12:14:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:14:52,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 12:14:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:52,209 INFO L225 Difference]: With dead ends: 70 [2020-09-25 12:14:52,209 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 12:14:52,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:14:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 12:14:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-09-25 12:14:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 12:14:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2020-09-25 12:14:52,227 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 51 [2020-09-25 12:14:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:52,228 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2020-09-25 12:14:52,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2020-09-25 12:14:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:14:52,246 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:52,246 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:52,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:14:52,247 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:52,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:52,248 INFO L82 PathProgramCache]: Analyzing trace with hash 809102171, now seen corresponding path program 2 times [2020-09-25 12:14:52,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:52,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426281929] [2020-09-25 12:14:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:54,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:54,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:54,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:57,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:14:57,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 12:14:57,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 12:14:57,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:57,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:57,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 12:14:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:57,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:57,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:57,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:57,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:57,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:02,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:15:02,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 12:15:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 12:15:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:02,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:02,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 12:15:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:02,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:02,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:02,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:15:02,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 12:15:02,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:02,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:02,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:02,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:02,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:02,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:02,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:15:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:02,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:02,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:02,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:02,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:02,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:02,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:02,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:02,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:02,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:02,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:15:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:02,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:15:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:15:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2104 [2020-09-25 12:15:04,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:04,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:15:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:04,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:04,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:04,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:04,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:04,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:04,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:04,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:04,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:04,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:04,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:04,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:15:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 12:15:04,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:04,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:04,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:04,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:04,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:15:04,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:04,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:04,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:04,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:04,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:04,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:04,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:04,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:04,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:04,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:04,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:04,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:04,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 52 proven. 71 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 12:15:04,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426281929] [2020-09-25 12:15:04,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:04,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:15:04,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127350459] [2020-09-25 12:15:04,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:15:04,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:04,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:15:04,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:15:04,899 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand 10 states. [2020-09-25 12:15:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:05,151 INFO L93 Difference]: Finished difference Result 102 states and 145 transitions. [2020-09-25 12:15:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:15:05,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 12:15:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:05,153 INFO L225 Difference]: With dead ends: 102 [2020-09-25 12:15:05,153 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 12:15:05,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:15:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 12:15:05,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 12:15:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 12:15:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 12:15:05,162 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 85 [2020-09-25 12:15:05,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:05,163 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 12:15:05,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:15:05,163 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 12:15:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 12:15:05,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:05,164 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:05,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:15:05,165 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:05,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:05,165 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 12:15:05,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:05,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972848461] [2020-09-25 12:15:05,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:05,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:10,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:15:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 12:15:10,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:10,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:10,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:10,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:10,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:10,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:10,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:10,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:10,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:10,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:10,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:10,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 12:15:15,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:15:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:15:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:15,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:15,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:15:15,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:15:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:15,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:15,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:15:15,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:15,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:15,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2482 [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:15:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:18,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:15:18,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:18,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:18,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:18,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:18,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:18,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:18,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:18,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:18,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:18,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:18,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:18,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:18,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:18,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 57 proven. 74 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 12:15:18,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972848461] [2020-09-25 12:15:18,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:18,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:15:18,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666774201] [2020-09-25 12:15:18,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:15:18,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:18,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:15:18,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:15:18,153 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 10 states. [2020-09-25 12:15:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:18,497 INFO L93 Difference]: Finished difference Result 98 states and 128 transitions. [2020-09-25 12:15:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:15:18,499 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 12:15:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:18,500 INFO L225 Difference]: With dead ends: 98 [2020-09-25 12:15:18,500 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 12:15:18,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:15:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 12:15:18,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 12:15:18,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:15:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 12:15:18,519 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 87 [2020-09-25 12:15:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:18,520 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 12:15:18,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:15:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 12:15:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 12:15:18,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:18,521 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:18,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:15:18,522 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1108116753, now seen corresponding path program 4 times [2020-09-25 12:15:18,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:18,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825897838] [2020-09-25 12:15:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:18,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:18,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:20,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:15:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:15:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 12:15:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:24,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:24,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:28,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:28,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 12:15:28,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 12:15:28,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 12:15:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:28,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:28,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:28,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:28,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:28,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:30,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1937 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:15:30,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:15:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:30,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:30,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:30,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:15:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-25 12:15:30,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:30,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:15:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:31,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:31,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:31,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:31,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:15:31,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:31,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:31,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:31,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:31,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:31,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:31,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:31,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:31,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:31,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:15:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 12:15:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking...