/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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/Fibonacci02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:52:19,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:52:19,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:52:19,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:52:19,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:52:19,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:52:19,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:52:19,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:52:19,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:52:19,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:52:19,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:52:19,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:52:19,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:52:19,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:52:19,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:52:19,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:52:19,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:52:19,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:52:19,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:52:19,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:52:19,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:52:19,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:52:19,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:52:19,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:52:19,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:52:19,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:52:19,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:52:19,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:52:19,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:52:19,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:52:19,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:52:19,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:52:19,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:52:19,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:52:19,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:52:19,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:52:19,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:52:19,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:52:19,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:52:19,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:52:19,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:52:19,459 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 08:52:19,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:52:19,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:52:19,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:52:19,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:52:19,488 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:52:19,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:52:19,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:52:19,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:52:19,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:52:19,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:52:19,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:52:19,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:52:19,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:52:19,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:52:19,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:52:19,490 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:52:19,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:52:19,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:52:19,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:52:19,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:52:19,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:52:19,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:52:19,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:52:19,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:52:19,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:52:19,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:52:19,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:52:19,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:52:19,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:52:19,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:52:19,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:52:19,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:52:19,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:52:19,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:52:19,991 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:52:19,992 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 08:52:20,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/218977692/49c0dbc6e49d4ebea959b4ea1e6dd074/FLAGde49f66d0 [2020-09-25 08:52:20,632 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:52:20,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 08:52:20,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/218977692/49c0dbc6e49d4ebea959b4ea1e6dd074/FLAGde49f66d0 [2020-09-25 08:52:20,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/218977692/49c0dbc6e49d4ebea959b4ea1e6dd074 [2020-09-25 08:52:20,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:52:20,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:52:20,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:20,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:52:20,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:52:20,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:20" (1/1) ... [2020-09-25 08:52:20,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:20, skipping insertion in model container [2020-09-25 08:52:20,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:20" (1/1) ... [2020-09-25 08:52:20,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:52:21,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:52:21,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:21,318 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:52:21,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:21,361 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:52:21,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21 WrapperNode [2020-09-25 08:52:21,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:21,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:52:21,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:52:21,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:52:21,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (1/1) ... [2020-09-25 08:52:21,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:52:21,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:52:21,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:52:21,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:52:21,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (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 08:52:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:52:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:52:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 08:52:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:52:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:52:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:52:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 08:52:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:52:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:52:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:52:21,777 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:52:21,777 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:52:21,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:21 BoogieIcfgContainer [2020-09-25 08:52:21,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:52:21,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:52:21,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:52:21,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:52:21,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:52:20" (1/3) ... [2020-09-25 08:52:21,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d98cb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:21, skipping insertion in model container [2020-09-25 08:52:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:21" (2/3) ... [2020-09-25 08:52:21,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d98cb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:21, skipping insertion in model container [2020-09-25 08:52:21,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:21" (3/3) ... [2020-09-25 08:52:21,795 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2020-09-25 08:52:21,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:52:21,820 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:52:21,850 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:52:21,897 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:52:21,898 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:52:21,898 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:52:21,898 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:52:21,898 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:52:21,899 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:52:21,899 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:52:21,899 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:52:21,928 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 08:52:21,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:52:21,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:21,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:21,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:21,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:21,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2085313281, now seen corresponding path program 1 times [2020-09-25 08:52:21,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:21,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100876864] [2020-09-25 08:52:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:52:22,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 08:52:22,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:22,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:52:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:52:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:52:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:22,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:22,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:22,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 08:52:22,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:22,294 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 08:52:22,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100876864] [2020-09-25 08:52:22,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:22,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:52:22,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155649709] [2020-09-25 08:52:22,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:52:22,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:22,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:52:22,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:22,335 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 08:52:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:22,453 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 08:52:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:22,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:52:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:22,470 INFO L225 Difference]: With dead ends: 44 [2020-09-25 08:52:22,470 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 08:52:22,475 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 08:52:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 08:52:22,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 08:52:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 08:52:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 08:52:22,536 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 08:52:22,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:22,537 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 08:52:22,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:52:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 08:52:22,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:52:22,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:22,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:22,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:52:22,541 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:22,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:22,542 INFO L82 PathProgramCache]: Analyzing trace with hash -93144392, now seen corresponding path program 1 times [2020-09-25 08:52:22,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:22,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134196267] [2020-09-25 08:52:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:52:22,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 08:52:22,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:22,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:52:22,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:22,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:22,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:52:22,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:22,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:22,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:52:22,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:22,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:22,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:22,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:22,799 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 08:52:22,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134196267] [2020-09-25 08:52:22,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:22,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:52:22,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343609464] [2020-09-25 08:52:22,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:52:22,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:22,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:52:22,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:22,805 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 08:52:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:22,875 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 08:52:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:22,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:52:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:22,878 INFO L225 Difference]: With dead ends: 36 [2020-09-25 08:52:22,878 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 08:52:22,880 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 08:52:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 08:52:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 08:52:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 08:52:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 08:52:22,888 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 08:52:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:22,889 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 08:52:22,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:52:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 08:52:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:52:22,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:22,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:22,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:52:22,892 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:22,892 INFO L82 PathProgramCache]: Analyzing trace with hash 37359445, now seen corresponding path program 1 times [2020-09-25 08:52:22,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:22,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721536756] [2020-09-25 08:52:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:22,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:52:23,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:52:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-09-25 08:52:23,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:52:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:52:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:23,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:23,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:23,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:52:23,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:52:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 08:52:23,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:52:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:23,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:52:23,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:52:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:23,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:23,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:52:23,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:23,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:52:23,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721536756] [2020-09-25 08:52:23,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:23,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 08:52:23,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609121734] [2020-09-25 08:52:23,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:52:23,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:52:23,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:52:23,925 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 08:52:24,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:24,031 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 08:52:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:52:24,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 08:52:24,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:24,034 INFO L225 Difference]: With dead ends: 44 [2020-09-25 08:52:24,034 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 08:52:24,035 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 08:52:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 08:52:24,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 08:52:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 08:52:24,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 08:52:24,046 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 08:52:24,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:24,046 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 08:52:24,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:52:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 08:52:24,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:52:24,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:24,049 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:24,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:52:24,049 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:24,050 INFO L82 PathProgramCache]: Analyzing trace with hash -878558549, now seen corresponding path program 1 times [2020-09-25 08:52:24,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:24,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266991707] [2020-09-25 08:52:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:24,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:52:24,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-25 08:52:24,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:24,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:52:24,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:52:24,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:24,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:24,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:24,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:24,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:24,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:24,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:24,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:25,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:52:25,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 08:52:25,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:25,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:52:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:25,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:25,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:25,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:25,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:52:25,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:25,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:25,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:52:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:25,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:25,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:25,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:25,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:52:25,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:25,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:25,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:52:25,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266991707] [2020-09-25 08:52:25,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:25,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 08:52:25,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242450333] [2020-09-25 08:52:25,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:52:25,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:25,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:52:25,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:52:25,209 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 08:52:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:25,371 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 08:52:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:52:25,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 08:52:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:25,380 INFO L225 Difference]: With dead ends: 88 [2020-09-25 08:52:25,382 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 08:52:25,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:52:25,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 08:52:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 08:52:25,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:52:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 08:52:25,418 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 08:52:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:25,418 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 08:52:25,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:52:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 08:52:25,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:52:25,424 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:25,424 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:25,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:52:25,424 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1945698440, now seen corresponding path program 1 times [2020-09-25 08:52:25,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:25,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593199498] [2020-09-25 08:52:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:25,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:30,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:52:30,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:52:30,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:52:30,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:30,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:30,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:52:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:52:30,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:30,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:30,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:30,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:30,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:30,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:30,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:30,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:31,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:33,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:33,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:52:33,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:52:33,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3318 [2020-09-25 08:52:33,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:33,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:52:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:52:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:33,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:33,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:34,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:52:34,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:52:34,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 08:52:34,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:34,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:34,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:52:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:52:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:34,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:34,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:34,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:52:34,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:34,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:52:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:34,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:34,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:34,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:52:34,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:34,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:34,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:52:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:34,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:34,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:52:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:34,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:52:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 08:52:34,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593199498] [2020-09-25 08:52:34,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:34,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:52:34,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878750707] [2020-09-25 08:52:34,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:52:34,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:34,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:52:34,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:52:34,204 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 8 states. [2020-09-25 08:52:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:34,451 INFO L93 Difference]: Finished difference Result 94 states and 148 transitions. [2020-09-25 08:52:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:52:34,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 08:52:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:34,461 INFO L225 Difference]: With dead ends: 94 [2020-09-25 08:52:34,461 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 08:52:34,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:52:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 08:52:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-09-25 08:52:34,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 08:52:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 132 transitions. [2020-09-25 08:52:34,509 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 132 transitions. Word has length 51 [2020-09-25 08:52:34,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:34,512 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 132 transitions. [2020-09-25 08:52:34,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:52:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2020-09-25 08:52:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 08:52:34,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:34,518 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:34,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:52:34,518 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:34,519 INFO L82 PathProgramCache]: Analyzing trace with hash 107501234, now seen corresponding path program 2 times [2020-09-25 08:52:34,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:34,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422957098] [2020-09-25 08:52:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:34,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:35,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:35,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:36,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:37,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:39,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 08:52:39,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:52:39,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:52:39,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:39,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:52:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:52:39,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 08:52:39,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:39,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:39,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:39,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:39,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:39,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:39,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:39,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:41,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 08:52:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 08:52:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:44,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:52:44,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:44,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:44,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:44,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:52:44,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:44,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:44,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:44,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:44,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:52:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:44,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:44,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:44,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:44,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:52:44,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:44,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:44,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:44,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:52:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:44,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:44,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:45,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:46,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:52:46,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 08:52:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-09-25 08:52:46,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:46,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:52:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:52:46,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:46,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:46,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:46,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:46,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:46,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:52:46,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:46,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:46,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:52:46,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:52:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:46,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:52:46,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:46,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:52:46,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:46,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:52:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:46,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:46,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:52:46,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:52:46,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:46,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:46,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:52:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:46,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:46,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:46,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:46,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:52:46,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:46,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:46,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 67 proven. 79 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 08:52:46,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422957098] [2020-09-25 08:52:46,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:52:46,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:52:46,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462281964] [2020-09-25 08:52:46,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:52:46,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:46,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:52:46,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:52:46,888 INFO L87 Difference]: Start difference. First operand 82 states and 132 transitions. Second operand 10 states. [2020-09-25 08:52:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:47,200 INFO L93 Difference]: Finished difference Result 167 states and 279 transitions. [2020-09-25 08:52:47,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:52:47,203 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 08:52:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:47,207 INFO L225 Difference]: With dead ends: 167 [2020-09-25 08:52:47,208 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 08:52:47,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 08:52:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 08:52:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 59. [2020-09-25 08:52:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 08:52:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-09-25 08:52:47,238 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 87 [2020-09-25 08:52:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:47,238 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-09-25 08:52:47,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:52:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-09-25 08:52:47,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 08:52:47,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:47,242 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] [2020-09-25 08:52:47,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:52:47,243 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:47,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:47,243 INFO L82 PathProgramCache]: Analyzing trace with hash 422985096, now seen corresponding path program 3 times [2020-09-25 08:52:47,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:47,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833398142] [2020-09-25 08:52:47,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:47,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:50,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:50,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:52,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 08:52:52,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 08:52:52,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 08:52:52,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:52,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:52,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:52,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:52,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:52,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:52,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:52:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:53,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:56,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:56,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:56,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:56,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:57,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 08:52:57,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-09-25 08:52:57,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 08:52:57,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:57,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:52:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 08:52:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:52:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:57,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:57,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:57,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:57,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:52:57,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 08:52:57,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:57,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:52:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:52:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 08:52:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:52:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:58,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:58,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:52:58,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:58,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 08:52:58,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:58,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:52:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:52:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:58,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:52:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:58,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:58,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:58,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 08:52:58,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:58,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:58,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:58,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:52:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:58,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:58,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:52:58,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:58,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:58,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:52:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:58,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:52:58,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:58,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:52:58,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:58,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:58,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:58,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:52:58,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:52:58,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:52:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:58,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:58,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:59,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:01,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:03,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:03,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 08:53:03,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:03,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:03,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:03,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:53:04,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:53:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-09-25 08:53:04,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:53:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:04,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:04,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:04,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:04,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:04,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:04,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:04,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:53:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:04,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:53:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:04,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:04,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:04,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:04,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 75 proven. 123 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-09-25 08:53:04,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833398142] [2020-09-25 08:53:04,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:04,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 08:53:04,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601458374] [2020-09-25 08:53:04,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:53:04,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:04,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:53:04,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:53:04,358 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 10 states. [2020-09-25 08:53:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:04,555 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2020-09-25 08:53:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:53:04,556 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 119 [2020-09-25 08:53:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:04,557 INFO L225 Difference]: With dead ends: 104 [2020-09-25 08:53:04,557 INFO L226 Difference]: Without dead ends: 51 [2020-09-25 08:53:04,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:53:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-25 08:53:04,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-25 08:53:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 08:53:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2020-09-25 08:53:04,573 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 119 [2020-09-25 08:53:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:04,577 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2020-09-25 08:53:04,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:53:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2020-09-25 08:53:04,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 08:53:04,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:04,580 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:04,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:53:04,584 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash -858055544, now seen corresponding path program 4 times [2020-09-25 08:53:04,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:04,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887752333] [2020-09-25 08:53:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:04,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:05,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:05,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:06,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:09,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 08:53:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:53:09,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:53:09,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:09,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:09,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:09,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:09,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:09,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:09,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:09,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:09,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:09,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:10,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:10,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:10,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:11,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:11,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:13,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:14,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 08:53:14,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 08:53:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:53:14,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:14,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:14,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:53:14,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:53:14,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 08:53:14,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:14,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:14,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:15,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:53:15,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1172 [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 08:53:15,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:15,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:15,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:16,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:53:16,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:16,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 08:53:16,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:16,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:53:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:16,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:16,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:16,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:16,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:16,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:16,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:16,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:16,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:16,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:16,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:53:16,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:16,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:53:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:53:16,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:16,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 08:53:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:16,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:17,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking...