/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=0.5 --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/Fibonacci03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:28:56,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:28:56,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:28:56,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:28:56,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:28:56,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:28:56,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:28:56,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:28:56,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:28:56,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:28:56,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:28:56,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:28:56,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:28:56,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:28:56,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:28:56,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:28:56,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:28:56,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:28:56,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:28:56,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:28:56,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:28:56,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:28:56,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:28:56,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:28:56,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:28:56,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:28:56,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:28:56,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:28:56,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:28:56,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:28:56,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:28:56,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:28:56,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:28:56,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:28:56,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:28:56,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:28:56,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:28:56,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:28:56,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:28:56,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:28:56,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:28:56,598 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 14:28:56,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:28:56,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:28:56,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:28:56,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:28:56,660 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:28:56,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:28:56,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:28:56,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:28:56,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:28:56,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:28:56,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:28:56,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:28:56,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:28:56,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:28:56,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:28:56,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:28:56,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:28:56,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:28:56,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:28:56,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:28:56,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:28:56,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:28:56,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:28:56,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:28:56,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:28:56,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:28:56,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:28:56,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:28:56,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:28:56,667 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:28:57,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:28:57,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:28:57,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:28:57,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:28:57,198 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:28:57,199 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 14:28:57,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0d6d71a5/ba19adc489ac489882ce127b72e70588/FLAGacb281909 [2020-09-25 14:28:57,864 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:28:57,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 14:28:57,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0d6d71a5/ba19adc489ac489882ce127b72e70588/FLAGacb281909 [2020-09-25 14:28:58,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0d6d71a5/ba19adc489ac489882ce127b72e70588 [2020-09-25 14:28:58,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:28:58,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:28:58,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:58,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:28:58,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:28:58,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58, skipping insertion in model container [2020-09-25 14:28:58,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:28:58,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:28:58,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:58,469 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:28:58,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:58,499 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:28:58,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58 WrapperNode [2020-09-25 14:28:58,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:58,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:28:58,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:28:58,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:28:58,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (1/1) ... [2020-09-25 14:28:58,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:28:58,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:28:58,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:28:58,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:28:58,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (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 14:28:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:28:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:28:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 14:28:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:28:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 14:28:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:28:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:28:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:28:58,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:28:58,911 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:28:58,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:58 BoogieIcfgContainer [2020-09-25 14:28:58,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:28:58,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:28:58,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:28:58,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:28:58,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:28:58" (1/3) ... [2020-09-25 14:28:58,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484e9db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:58, skipping insertion in model container [2020-09-25 14:28:58,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:58" (2/3) ... [2020-09-25 14:28:58,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484e9db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:58, skipping insertion in model container [2020-09-25 14:28:58,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:58" (3/3) ... [2020-09-25 14:28:58,927 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-09-25 14:28:58,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:28:58,951 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:28:58,988 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:28:59,047 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:28:59,047 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:28:59,047 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:28:59,047 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:28:59,048 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:28:59,048 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:28:59,048 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:28:59,048 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:28:59,081 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 14:28:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 14:28:59,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:59,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:59,095 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:59,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:59,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 14:28:59,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:59,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660710023] [2020-09-25 14:28:59,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 14:28:59,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 14:28:59,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:28:59,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:28:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:28:59,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:59,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:28:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:28:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:28:59,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 14:28:59,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:28:59,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,601 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 14:28:59,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660710023] [2020-09-25 14:28:59,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:28:59,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:28:59,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302586845] [2020-09-25 14:28:59,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:28:59,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:59,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:28:59,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:28:59,632 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-25 14:28:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:28:59,760 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 14:28:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:28:59,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 14:28:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:28:59,776 INFO L225 Difference]: With dead ends: 50 [2020-09-25 14:28:59,777 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 14:28:59,782 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 14:28:59,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 14:28:59,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 14:28:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 14:28:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 14:28:59,835 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 14:28:59,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:28:59,836 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 14:28:59,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:28:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 14:28:59,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 14:28:59,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:59,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:59,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:28:59,840 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:59,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 14:28:59,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:59,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336378050] [2020-09-25 14:28:59,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 14:28:59,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 14:28:59,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:28:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:28:59,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:59,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:28:59,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:28:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:00,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 14:29:00,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,028 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 14:29:00,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336378050] [2020-09-25 14:29:00,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:29:00,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:29:00,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784550304] [2020-09-25 14:29:00,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:29:00,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:00,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:29:00,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:29:00,032 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-09-25 14:29:00,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:00,096 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 14:29:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:29:00,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-25 14:29:00,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:00,099 INFO L225 Difference]: With dead ends: 39 [2020-09-25 14:29:00,099 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 14:29:00,100 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 14:29:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 14:29:00,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 14:29:00,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 14:29:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 14:29:00,109 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 14:29:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:00,110 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 14:29:00,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:29:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 14:29:00,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 14:29:00,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:00,113 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, 1, 1, 1] [2020-09-25 14:29:00,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:29:00,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:00,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:00,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 14:29:00,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:00,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904810506] [2020-09-25 14:29:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 14:29:00,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:29:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-25 14:29:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 14:29:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:00,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:00,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:00,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:00,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 14:29:00,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:29:00,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:00,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:00,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:00,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:00,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 14:29:00,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904810506] [2020-09-25 14:29:00,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:00,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:00,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489507327] [2020-09-25 14:29:00,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:00,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:00,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:00,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:00,862 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-09-25 14:29:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:00,974 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-25 14:29:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:00,975 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 14:29:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:00,977 INFO L225 Difference]: With dead ends: 47 [2020-09-25 14:29:00,977 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 14:29:00,978 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 14:29:00,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 14:29:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-09-25 14:29:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-25 14:29:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-09-25 14:29:00,989 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 36 [2020-09-25 14:29:00,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:00,990 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-09-25 14:29:00,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-09-25 14:29:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 14:29:00,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:00,993 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:00,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:29:00,993 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:00,994 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 14:29:00,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:00,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643750147] [2020-09-25 14:29:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:29:01,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-25 14:29:01,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:01,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 14:29:01,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:01,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:01,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 14:29:01,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:29:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:01,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:29:01,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:01,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:01,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:01,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:29:01,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:01,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 14:29:01,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643750147] [2020-09-25 14:29:01,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:01,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:01,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433089385] [2020-09-25 14:29:01,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:01,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:01,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:01,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:01,857 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 6 states. [2020-09-25 14:29:01,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:01,993 INFO L93 Difference]: Finished difference Result 95 states and 141 transitions. [2020-09-25 14:29:01,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:01,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 14:29:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:01,997 INFO L225 Difference]: With dead ends: 95 [2020-09-25 14:29:01,998 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 14:29:01,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 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 14:29:02,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 14:29:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 14:29:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 14:29:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-09-25 14:29:02,015 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 37 [2020-09-25 14:29:02,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:02,016 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-09-25 14:29:02,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-09-25 14:29:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 14:29:02,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:02,020 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:02,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:02,021 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:02,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:02,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1288436502, now seen corresponding path program 2 times [2020-09-25 14:29:02,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:02,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155719160] [2020-09-25 14:29:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:02,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:05,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:29:05,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3743 [2020-09-25 14:29:05,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:05,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:05,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 14:29:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:05,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:05,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:05,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:05,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:05,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:05,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:05,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:06,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:29:07,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:29:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-09-25 14:29:07,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:07,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:07,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:07,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:07,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:07,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:29:07,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:07,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:07,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:07,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:07,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:07,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:07,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:07,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:07,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:07,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:07,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:07,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:07,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:07,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:07,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:07,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:07,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:07,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:07,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:07,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:07,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:07,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:07,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:07,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:07,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 14:29:07,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155719160] [2020-09-25 14:29:07,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:07,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:07,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752480082] [2020-09-25 14:29:07,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:07,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:07,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:07,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:07,554 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 6 states. [2020-09-25 14:29:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:07,664 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2020-09-25 14:29:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:07,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 14:29:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:07,673 INFO L225 Difference]: With dead ends: 133 [2020-09-25 14:29:07,677 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 14:29:07,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 14:29:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 14:29:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2020-09-25 14:29:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 14:29:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 14:29:07,702 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 53 [2020-09-25 14:29:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:07,702 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 14:29:07,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 14:29:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 14:29:07,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:07,712 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, 1, 1, 1] [2020-09-25 14:29:07,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:29:07,713 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:07,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:07,713 INFO L82 PathProgramCache]: Analyzing trace with hash -494889179, now seen corresponding path program 2 times [2020-09-25 14:29:07,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:07,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793562375] [2020-09-25 14:29:07,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:07,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:09,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:12,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 14:29:12,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4380 [2020-09-25 14:29:12,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:12,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:12,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:29:12,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 14:29:12,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:12,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:12,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:12,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:12,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:12,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:12,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:12,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:12,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:12,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:12,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:13,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:15,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:29:15,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3342 [2020-09-25 14:29:15,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:29:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:15,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:15,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 14:29:15,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:15,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:15,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:15,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:15,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:15,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:29:15,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:15,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 14:29:15,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793562375] [2020-09-25 14:29:15,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:15,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:29:15,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158903443] [2020-09-25 14:29:15,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:29:15,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:15,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:29:15,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:29:15,658 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 6 states. [2020-09-25 14:29:15,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:15,818 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2020-09-25 14:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:29:15,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 14:29:15,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:15,823 INFO L225 Difference]: With dead ends: 77 [2020-09-25 14:29:15,823 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 14:29:15,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 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 14:29:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 14:29:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2020-09-25 14:29:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 14:29:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 14:29:15,851 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 54 [2020-09-25 14:29:15,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:15,855 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 14:29:15,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 14:29:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 14:29:15,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:15,858 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, 1, 1, 1] [2020-09-25 14:29:15,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:29:15,859 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:15,859 INFO L82 PathProgramCache]: Analyzing trace with hash -339463207, now seen corresponding path program 3 times [2020-09-25 14:29:15,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:15,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378475652] [2020-09-25 14:29:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:19,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:20,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:20,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 14:29:20,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 14:29:20,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 14:29:20,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:20,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:29:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:29:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 14:29:20,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:20,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:20,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:20,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:20,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:20,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:20,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:20,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:20,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:20,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:20,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:21,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:22,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:24,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 14:29:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 14:29:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 14:29:25,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:25,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 14:29:25,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:25,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:25,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:26,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:26,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 14:29:26,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:26,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:26,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:26,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:29:26,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:26,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:26,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:26,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:26,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:26,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:27,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:29:27,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:27,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:27,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 14:29:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:27,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:27,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:27,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:27,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:27,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:27,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:27,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:27,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:27,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:27,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:27,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:27,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:27,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:29:27,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:27,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:27,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:27,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 55 proven. 69 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-25 14:29:27,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378475652] [2020-09-25 14:29:27,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:27,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:29:27,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240247671] [2020-09-25 14:29:27,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:29:27,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:27,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:29:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:29:27,807 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 9 states. [2020-09-25 14:29:27,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:27,985 INFO L93 Difference]: Finished difference Result 123 states and 166 transitions. [2020-09-25 14:29:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:29:27,987 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-09-25 14:29:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:27,989 INFO L225 Difference]: With dead ends: 123 [2020-09-25 14:29:27,989 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 14:29:27,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:29:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 14:29:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2020-09-25 14:29:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 14:29:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2020-09-25 14:29:28,017 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 88 [2020-09-25 14:29:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:28,020 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2020-09-25 14:29:28,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:29:28,020 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2020-09-25 14:29:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 14:29:28,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:28,022 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, 1, 1, 1] [2020-09-25 14:29:28,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:29:28,022 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:28,025 INFO L82 PathProgramCache]: Analyzing trace with hash -778718797, now seen corresponding path program 4 times [2020-09-25 14:29:28,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:28,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816984722] [2020-09-25 14:29:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:28,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 14:29:33,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:29:33,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:29:33,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:29:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:29:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:29:33,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:33,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 14:29:38,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:29:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:29:38,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:29:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:38,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:29:38,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:38,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:38,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:38,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 14:29:38,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:38,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:29:38,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:38,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:38,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:29:38,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:38,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:38,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:38,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:29:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:29:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:38,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 14:29:40,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:29:40,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1857 [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:29:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:29:40,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:29:40,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:29:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:40,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:40,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:29:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:40,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:29:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:40,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:40,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:40,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:40,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:40,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 55 proven. 76 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 14:29:40,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816984722] [2020-09-25 14:29:40,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:40,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:29:40,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140895758] [2020-09-25 14:29:40,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:29:40,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:40,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:29:40,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:40,409 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 10 states. [2020-09-25 14:29:40,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:40,635 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2020-09-25 14:29:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:29:40,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-09-25 14:29:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:40,637 INFO L225 Difference]: With dead ends: 106 [2020-09-25 14:29:40,637 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 14:29:40,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:29:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 14:29:40,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-09-25 14:29:40,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 14:29:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2020-09-25 14:29:40,647 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 90 [2020-09-25 14:29:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:40,648 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2020-09-25 14:29:40,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:29:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2020-09-25 14:29:40,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 14:29:40,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:40,650 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:40,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:29:40,650 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:40,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1907164819, now seen corresponding path program 5 times [2020-09-25 14:29:40,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:40,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849906144] [2020-09-25 14:29:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:40,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:40,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:41,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:45,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 14:29:45,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 14:29:45,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:29:45,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:45,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:45,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:29:45,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 14:29:45,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 14:29:45,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:45,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:45,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:45,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 14:29:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:45,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:46,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:50,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:50,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 14:29:50,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 14:29:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:29:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:50,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:29:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:29:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 14:29:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:50,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:50,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:50,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:50,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:29:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:29:51,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:29:51,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:29:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:29:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:29:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:51,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:29:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:51,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking...