/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:13:44,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:13:44,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:13:44,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:13:44,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:13:44,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:13:44,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:13:44,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:13:44,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:13:44,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:13:44,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:13:44,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:13:44,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:13:44,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:13:44,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:13:44,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:13:44,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:13:44,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:13:44,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:13:44,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:13:44,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:13:44,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:13:44,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:13:44,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:13:44,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:13:44,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:13:44,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:13:44,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:13:44,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:13:44,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:13:44,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:13:44,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:13:44,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:13:44,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:13:44,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:13:44,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:13:44,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:13:44,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:13:44,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:13:44,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:13:44,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:13:44,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:13:45,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:13:45,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:13:45,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:13:45,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:13:45,029 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:13:45,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:13:45,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:13:45,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:13:45,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:13:45,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:13:45,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:13:45,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:13:45,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:13:45,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:13:45,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:13:45,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:13:45,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:13:45,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:13:45,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:13:45,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:13:45,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:13:45,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:13:45,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:13:45,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:13:45,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:13:45,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:13:45,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:13:45,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:13:45,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:13:45,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:13:45,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:13:45,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:13:45,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:13:45,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:13:45,549 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:13:45,550 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 12:13:45,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d96869d/51449dcd536e4672883e2fb7174e4c4e/FLAG3c85bf577 [2020-09-25 12:13:46,175 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:13:46,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 12:13:46,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d96869d/51449dcd536e4672883e2fb7174e4c4e/FLAG3c85bf577 [2020-09-25 12:13:46,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52d96869d/51449dcd536e4672883e2fb7174e4c4e [2020-09-25 12:13:46,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:13:46,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:13:46,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:13:46,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:13:46,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:13:46,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad15a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46, skipping insertion in model container [2020-09-25 12:13:46,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:13:46,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:13:46,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:13:46,873 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:13:46,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:13:46,921 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:13:46,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46 WrapperNode [2020-09-25 12:13:46,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:13:46,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:13:46,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:13:46,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:13:46,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... [2020-09-25 12:13:46,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:13:46,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:13:46,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:13:46,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:13:46,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:13:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:13:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:13:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 12:13:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:13:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:13:47,413 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:13:47,413 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:13:47,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:13:47 BoogieIcfgContainer [2020-09-25 12:13:47,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:13:47,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:13:47,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:13:47,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:13:47,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:13:46" (1/3) ... [2020-09-25 12:13:47,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4eacb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:13:47, skipping insertion in model container [2020-09-25 12:13:47,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:13:46" (2/3) ... [2020-09-25 12:13:47,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4eacb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:13:47, skipping insertion in model container [2020-09-25 12:13:47,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:13:47" (3/3) ... [2020-09-25 12:13:47,436 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-09-25 12:13:47,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:13:47,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:13:47,514 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:13:47,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:13:47,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:13:47,541 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:13:47,541 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:13:47,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:13:47,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:13:47,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:13:47,542 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:13:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 12:13:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 12:13:47,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:47,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:47,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:47,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:47,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 12:13:47,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:47,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878125018] [2020-09-25 12:13:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:47,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 12:13:47,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 12:13:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:47,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:13:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:13:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:13:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:13:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:13:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:47,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:13:47,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:48,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:13:48,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:48,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:48,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:13:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:13:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:48,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:48,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:48,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:13:48,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:48,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:13:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:13:48,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:13:48,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878125018] [2020-09-25 12:13:48,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:13:48,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:13:48,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14961460] [2020-09-25 12:13:48,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:13:48,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:13:48,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:13:48,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:13:48,141 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-25 12:13:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:48,304 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 12:13:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:13:48,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 12:13:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:48,321 INFO L225 Difference]: With dead ends: 50 [2020-09-25 12:13:48,322 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 12:13:48,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:13:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 12:13:48,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 12:13:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 12:13:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 12:13:48,382 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 12:13:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:48,383 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 12:13:48,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:13:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 12:13:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 12:13:48,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:48,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:48,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:13:48,387 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 12:13:48,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:48,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228177973] [2020-09-25 12:13:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:48,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:48,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:13:48,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 12:13:48,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:48,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:48,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:13:48,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:13:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:13:48,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:48,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:13:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:48,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:48,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:13:48,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:13:48,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:48,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:48,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:48,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:13:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:48,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:13:48,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:48,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 12:13:48,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:48,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:13:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:48,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:13:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:13:48,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228177973] [2020-09-25 12:13:48,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:13:48,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:13:48,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373897154] [2020-09-25 12:13:48,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:13:48,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:13:48,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:13:48,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:13:48,653 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-09-25 12:13:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:48,721 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 12:13:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:13:48,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-25 12:13:48,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:48,724 INFO L225 Difference]: With dead ends: 39 [2020-09-25 12:13:48,724 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 12:13:48,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:13:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 12:13:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 12:13:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 12:13:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 12:13:48,734 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 12:13:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:48,735 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 12:13:48,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:13:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 12:13:48,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 12:13:48,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:48,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:48,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:13:48,738 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:48,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 12:13:48,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:48,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599075518] [2020-09-25 12:13:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:48,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:49,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 12:13:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:13:49,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-09-25 12:13:49,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:49,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:13:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 12:13:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:13:49,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:13:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:49,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:13:49,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:13:49,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:49,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:49,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:49,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:49,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:49,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:13:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:49,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:49,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:13:49,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:13:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 12:13:49,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:49,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:49,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:49,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:13:49,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:49,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:13:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:49,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:49,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:13:49,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:49,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:13:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:13:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:49,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:13:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:49,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:49,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:49,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:13:49,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:49,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:13:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:49,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:13:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:13:49,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:13:49,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599075518] [2020-09-25 12:13:49,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:13:49,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:13:49,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655223712] [2020-09-25 12:13:49,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:13:49,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:13:49,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:13:49,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:13:49,661 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-09-25 12:13:49,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:49,800 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-25 12:13:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:13:49,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 12:13:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:49,809 INFO L225 Difference]: With dead ends: 47 [2020-09-25 12:13:49,809 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 12:13:49,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:13:49,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 12:13:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-09-25 12:13:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-25 12:13:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-09-25 12:13:49,832 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 36 [2020-09-25 12:13:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:49,835 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-09-25 12:13:49,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:13:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-09-25 12:13:49,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 12:13:49,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:49,841 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:49,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:13:49,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:49,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:49,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 12:13:49,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:49,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135546615] [2020-09-25 12:13:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:49,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 12:13:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:13:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-09-25 12:13:50,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:50,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:13:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:13:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:50,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:13:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:50,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:50,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:13:50,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:50,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:13:50,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:50,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:50,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:50,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:50,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:13:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:50,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:50,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:13:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:13:50,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 12:13:50,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:50,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:13:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:13:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:50,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:50,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:13:50,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 12:13:50,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:50,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:13:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:13:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:13:50,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:13:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:50,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:50,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:13:50,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:50,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:13:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:13:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:13:50,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135546615] [2020-09-25 12:13:50,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:13:50,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:13:50,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832834212] [2020-09-25 12:13:50,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:13:50,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:13:50,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:13:50,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:13:50,793 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 6 states. [2020-09-25 12:13:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:50,923 INFO L93 Difference]: Finished difference Result 95 states and 141 transitions. [2020-09-25 12:13:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:13:50,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 12:13:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:50,927 INFO L225 Difference]: With dead ends: 95 [2020-09-25 12:13:50,927 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 12:13:50,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:13:50,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 12:13:50,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 12:13:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 12:13:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-09-25 12:13:50,944 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 37 [2020-09-25 12:13:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:50,945 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-09-25 12:13:50,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:13:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-09-25 12:13:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 12:13:50,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:50,949 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:50,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:13:50,949 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:50,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1288436502, now seen corresponding path program 2 times [2020-09-25 12:13:50,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:50,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128887066] [2020-09-25 12:13:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:50,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:50,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:51,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:51,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:52,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:54,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:54,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 12:13:54,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:13:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3840 [2020-09-25 12:13:54,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:54,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:13:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 12:13:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:54,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:13:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:54,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:54,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:54,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:13:54,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:54,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:13:54,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:54,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:54,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:54,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:54,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:13:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:54,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:55,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:56,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 12:13:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:13:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-09-25 12:13:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:56,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:13:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:13:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:13:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:56,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:56,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:13:56,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:13:56,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 12:13:56,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:56,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:13:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:13:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:56,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:13:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:56,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:56,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:13:56,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:56,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:56,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:13:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:56,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:56,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:56,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:56,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:13:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:56,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:13:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:13:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:13:56,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:13:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:56,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:13:56,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:13:56,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:13:56,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:13:56,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:13:56,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:13:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:13:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:13:56,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:13:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:13:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 12:13:56,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128887066] [2020-09-25 12:13:56,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:13:56,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:13:56,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948423819] [2020-09-25 12:13:56,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:13:56,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:13:56,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:13:56,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:13:56,720 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 6 states. [2020-09-25 12:13:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:13:56,819 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2020-09-25 12:13:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:13:56,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-25 12:13:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:13:56,823 INFO L225 Difference]: With dead ends: 133 [2020-09-25 12:13:56,824 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 12:13:56,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:13:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 12:13:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 63. [2020-09-25 12:13:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 12:13:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 12:13:56,840 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 53 [2020-09-25 12:13:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:13:56,840 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 12:13:56,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:13:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 12:13:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 12:13:56,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:13:56,843 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:13:56,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:13:56,844 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:13:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:13:56,844 INFO L82 PathProgramCache]: Analyzing trace with hash -494889179, now seen corresponding path program 2 times [2020-09-25 12:13:56,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:13:56,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457158420] [2020-09-25 12:13:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:13:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:13:56,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:56,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:57,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:57,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:13:58,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:01,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:14:01,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:01,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4282 [2020-09-25 12:14:01,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:01,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:14:01,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 12:14:01,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:01,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:01,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:01,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:01,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:14:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:01,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:01,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:14:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3420 [2020-09-25 12:14:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:04,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:14:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:04,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:04,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:04,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:04,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 12:14:04,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:04,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:04,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:04,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:04,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:04,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:04,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:04,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:04,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:04,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:04,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:04,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:04,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:04,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:04,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:04,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:04,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:04,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:04,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:04,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:04,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:04,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:04,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:04,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:04,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:04,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:04,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:04,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:04,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:14:04,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:04,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 12:14:04,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457158420] [2020-09-25 12:14:04,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:04,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:14:04,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260692527] [2020-09-25 12:14:04,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:14:04,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:04,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:14:04,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:04,752 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 6 states. [2020-09-25 12:14:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:04,891 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2020-09-25 12:14:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:04,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-25 12:14:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:04,894 INFO L225 Difference]: With dead ends: 77 [2020-09-25 12:14:04,894 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 12:14:04,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 12:14:04,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2020-09-25 12:14:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 12:14:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-09-25 12:14:04,906 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 54 [2020-09-25 12:14:04,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:04,906 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-09-25 12:14:04,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:14:04,906 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-09-25 12:14:04,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 12:14:04,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:04,910 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:04,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:14:04,911 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:04,911 INFO L82 PathProgramCache]: Analyzing trace with hash -339463207, now seen corresponding path program 3 times [2020-09-25 12:14:04,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:04,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300747336] [2020-09-25 12:14:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:04,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:05,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:05,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:08,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:08,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:09,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:09,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 12:14:09,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 12:14:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 12:14:09,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:09,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:14:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 12:14:09,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:09,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:09,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:09,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:09,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:09,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:09,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:09,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:14:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:09,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:09,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:10,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:10,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:10,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:10,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:11,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:14:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 12:14:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:14,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:14,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:15,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:15,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:15,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 12:14:15,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:15,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:15,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:15,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:14:15,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:15,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:15,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:15,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:15,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:14:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:15,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:15,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:15,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:15,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:15,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:14:15,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:15,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:15,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:15,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:15,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:16,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:14:16,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:14:16,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1633 [2020-09-25 12:14:16,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:16,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:14:16,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:16,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:16,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:16,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 12:14:16,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:16,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:16,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:16,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:16,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:16,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:16,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:16,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:16,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:16,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:16,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:16,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:16,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:16,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:16,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:16,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:16,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:16,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:16,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:16,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:16,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:16,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:14:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:16,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 12:14:16,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300747336] [2020-09-25 12:14:16,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:16,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:14:16,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023013921] [2020-09-25 12:14:16,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:14:16,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:16,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:14:16,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:16,893 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 8 states. [2020-09-25 12:14:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:17,066 INFO L93 Difference]: Finished difference Result 123 states and 166 transitions. [2020-09-25 12:14:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:14:17,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-09-25 12:14:17,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:17,070 INFO L225 Difference]: With dead ends: 123 [2020-09-25 12:14:17,070 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 12:14:17,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:14:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 12:14:17,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2020-09-25 12:14:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 12:14:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2020-09-25 12:14:17,088 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 88 [2020-09-25 12:14:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:17,088 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2020-09-25 12:14:17,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:14:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2020-09-25 12:14:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 12:14:17,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:17,093 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:17,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:14:17,094 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:17,094 INFO L82 PathProgramCache]: Analyzing trace with hash -778718797, now seen corresponding path program 4 times [2020-09-25 12:14:17,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:17,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862776680] [2020-09-25 12:14:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:17,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:17,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:19,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:22,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:22,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:14:22,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 12:14:22,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:22,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:22,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:22,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:22,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:22,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:22,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:22,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:22,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:14:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:22,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:27,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 12:14:27,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 12:14:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:14:27,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:27,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:14:27,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:14:27,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:14:27,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:27,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:27,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:14:27,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 12:14:27,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:27,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:14:27,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:27,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:27,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:27,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:27,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:14:27,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:27,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:27,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:27,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:27,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:27,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:14:27,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:27,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:27,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:27,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:27,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:14:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:27,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:27,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2726 [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:30,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:30,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:30,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:14:30,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:30,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:30,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:30,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:14:30,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:30,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:30,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:30,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:30,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:30,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:30,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:30,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:30,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:30,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:30,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:30,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:30,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:14:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:30,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:30,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:30,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:14:30,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:30,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:30,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:30,324 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 60 proven. 70 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 12:14:30,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862776680] [2020-09-25 12:14:30,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:30,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:14:30,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286839282] [2020-09-25 12:14:30,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:14:30,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:30,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:14:30,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:30,327 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand 9 states. [2020-09-25 12:14:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:30,554 INFO L93 Difference]: Finished difference Result 118 states and 158 transitions. [2020-09-25 12:14:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:14:30,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-09-25 12:14:30,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:30,556 INFO L225 Difference]: With dead ends: 118 [2020-09-25 12:14:30,557 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 12:14:30,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:14:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 12:14:30,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-09-25 12:14:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 12:14:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2020-09-25 12:14:30,567 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 90 [2020-09-25 12:14:30,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:30,567 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2020-09-25 12:14:30,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:14:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2020-09-25 12:14:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 12:14:30,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:30,569 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:30,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:14:30,570 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:30,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:30,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1907164819, now seen corresponding path program 5 times [2020-09-25 12:14:30,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:30,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826428644] [2020-09-25 12:14:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:30,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:30,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:32,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:32,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:32,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:32,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:33,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:34,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:35,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 12:14:35,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 12:14:35,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 12:14:35,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:35,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:35,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:14:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 12:14:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 12:14:35,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:35,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:35,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:35,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:35,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:14:35,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:35,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:35,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:35,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:35,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:14:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:35,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:36,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:40,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:14:40,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:14:40,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 12:14:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:14:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 12:14:41,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:14:41,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1118 [2020-09-25 12:14:41,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:14:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 12:14:41,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:41,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:41,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:41,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:14:41,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:41,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:41,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 12:14:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking...