/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:23:38,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:23:38,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:23:38,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:23:38,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:23:38,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:23:38,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:23:38,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:23:38,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:23:38,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:23:38,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:23:38,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:23:38,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:23:38,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:23:38,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:23:38,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:23:38,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:23:38,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:23:38,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:23:38,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:23:38,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:23:38,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:23:38,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:23:38,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:23:38,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:23:38,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:23:38,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:23:38,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:23:38,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:23:38,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:23:38,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:23:38,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:23:38,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:23:38,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:23:38,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:23:38,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:23:38,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:23:38,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:23:38,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:23:38,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:23:38,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:23:38,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:23:38,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:23:38,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:23:38,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:23:38,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:23:38,644 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:23:38,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:23:38,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:23:38,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:23:38,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:23:38,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:23:38,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:23:38,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:23:38,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:23:38,646 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:23:38,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:23:38,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:23:38,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:23:38,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:23:38,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:23:38,647 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:23:38,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:23:38,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:23:38,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:23:38,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:23:38,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:23:38,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:23:38,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:23:38,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:23:38,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:23:38,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:23:38,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:23:38,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:23:38,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:23:38,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:23:38,949 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:23:38,950 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-10-12 18:23:39,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d96c34f8/54953cdf49d047248c17bccea30e04cf/FLAG527c55af2 [2020-10-12 18:23:39,446 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:23:39,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-10-12 18:23:39,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d96c34f8/54953cdf49d047248c17bccea30e04cf/FLAG527c55af2 [2020-10-12 18:23:39,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d96c34f8/54953cdf49d047248c17bccea30e04cf [2020-10-12 18:23:39,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:23:39,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:23:39,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:23:39,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:23:39,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:23:39,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:23:39" (1/1) ... [2020-10-12 18:23:39,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb1485c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:39, skipping insertion in model container [2020-10-12 18:23:39,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:23:39" (1/1) ... [2020-10-12 18:23:39,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:23:39,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:23:40,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:23:40,121 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:23:40,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:23:40,150 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:23:40,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40 WrapperNode [2020-10-12 18:23:40,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:23:40,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:23:40,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:23:40,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:23:40,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... [2020-10-12 18:23:40,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:23:40,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:23:40,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:23:40,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:23:40,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:23:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:23:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:23:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-10-12 18:23:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:23:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:23:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:23:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-10-12 18:23:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:23:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:23:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:23:40,484 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:23:40,484 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 18:23:40,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:23:40 BoogieIcfgContainer [2020-10-12 18:23:40,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:23:40,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:23:40,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:23:40,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:23:40,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:23:39" (1/3) ... [2020-10-12 18:23:40,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589801d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:23:40, skipping insertion in model container [2020-10-12 18:23:40,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:23:40" (2/3) ... [2020-10-12 18:23:40,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589801d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:23:40, skipping insertion in model container [2020-10-12 18:23:40,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:23:40" (3/3) ... [2020-10-12 18:23:40,497 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_5-2.c [2020-10-12 18:23:40,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:23:40,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:23:40,529 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:23:40,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:23:40,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:23:40,553 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:23:40,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:23:40,554 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:23:40,554 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:23:40,554 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:23:40,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:23:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-12 18:23:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 18:23:40,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:40,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:40,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:40,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:40,580 INFO L82 PathProgramCache]: Analyzing trace with hash 537028541, now seen corresponding path program 1 times [2020-10-12 18:23:40,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:40,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610258598] [2020-10-12 18:23:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:40,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:40,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 18:23:40,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 18:23:40,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:40,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:23:40,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:23:40,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:40,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:40,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:23:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:40,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:40,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:40,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:40,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:23:40,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:40,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:23:40,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610258598] [2020-10-12 18:23:40,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:23:40,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 18:23:41,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184208738] [2020-10-12 18:23:41,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 18:23:41,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:41,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 18:23:41,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:41,028 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-10-12 18:23:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:41,097 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2020-10-12 18:23:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 18:23:41,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-12 18:23:41,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:41,111 INFO L225 Difference]: With dead ends: 38 [2020-10-12 18:23:41,112 INFO L226 Difference]: Without dead ends: 21 [2020-10-12 18:23:41,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-12 18:23:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-12 18:23:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-12 18:23:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-12 18:23:41,188 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-10-12 18:23:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:41,189 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-12 18:23:41,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 18:23:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-12 18:23:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 18:23:41,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:41,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:41,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:23:41,201 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:41,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:41,202 INFO L82 PathProgramCache]: Analyzing trace with hash 179123823, now seen corresponding path program 1 times [2020-10-12 18:23:41,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:41,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219721428] [2020-10-12 18:23:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:41,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:41,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:23:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-12 18:23:41,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:23:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:41,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:41,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:23:41,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:41,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:41,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:41,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:23:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:41,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:23:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:23:41,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219721428] [2020-10-12 18:23:41,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:23:41,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 18:23:41,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077456955] [2020-10-12 18:23:41,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 18:23:41,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:41,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 18:23:41,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 18:23:41,514 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-10-12 18:23:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:41,576 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-10-12 18:23:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 18:23:41,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-12 18:23:41,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:41,578 INFO L225 Difference]: With dead ends: 27 [2020-10-12 18:23:41,579 INFO L226 Difference]: Without dead ends: 23 [2020-10-12 18:23:41,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:23:41,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-12 18:23:41,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-12 18:23:41,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-12 18:23:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-12 18:23:41,593 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-10-12 18:23:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:41,593 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-12 18:23:41,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 18:23:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-12 18:23:41,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 18:23:41,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:41,595 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] [2020-10-12 18:23:41,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:23:41,595 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:41,596 INFO L82 PathProgramCache]: Analyzing trace with hash 806022394, now seen corresponding path program 1 times [2020-10-12 18:23:41,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:41,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528341859] [2020-10-12 18:23:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:41,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:42,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 18:23:42,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:23:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-10-12 18:23:42,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:23:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:42,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:42,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:23:42,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:42,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:42,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:42,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:42,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:42,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:23:42,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:23:42,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-12 18:23:42,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:23:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:42,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:23:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:42,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:42,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:42,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:23:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:42,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:42,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:42,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:42,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:42,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:23:42,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 18:23:42,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528341859] [2020-10-12 18:23:42,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:42,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 18:23:42,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520566421] [2020-10-12 18:23:42,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:23:42,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:42,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:23:42,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:23:42,972 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 8 states. [2020-10-12 18:23:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:43,018 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-10-12 18:23:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:23:43,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-10-12 18:23:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:43,021 INFO L225 Difference]: With dead ends: 33 [2020-10-12 18:23:43,021 INFO L226 Difference]: Without dead ends: 29 [2020-10-12 18:23:43,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:23:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-12 18:23:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-10-12 18:23:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-12 18:23:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-10-12 18:23:43,031 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 26 [2020-10-12 18:23:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:43,032 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-10-12 18:23:43,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:23:43,032 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-10-12 18:23:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 18:23:43,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:43,034 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] [2020-10-12 18:23:43,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:23:43,034 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:43,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2128676134, now seen corresponding path program 1 times [2020-10-12 18:23:43,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:43,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932651261] [2020-10-12 18:23:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:43,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:43,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:43,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:43,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:43,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 18:23:44,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:23:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1282 [2020-10-12 18:23:44,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:44,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:23:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:44,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:44,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:44,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:44,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:23:44,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:44,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:44,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:44,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:44,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:44,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:23:44,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:23:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-12 18:23:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:23:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:23:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:44,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:44,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:44,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:44,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:23:44,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:44,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:44,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:44,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:44,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:44,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:23:44,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:44,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:44,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:23:45,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932651261] [2020-10-12 18:23:45,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:45,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:23:45,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413450147] [2020-10-12 18:23:45,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:23:45,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:45,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:23:45,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:23:45,004 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 9 states. [2020-10-12 18:23:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:45,070 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-10-12 18:23:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:23:45,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-12 18:23:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:45,073 INFO L225 Difference]: With dead ends: 39 [2020-10-12 18:23:45,073 INFO L226 Difference]: Without dead ends: 35 [2020-10-12 18:23:45,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:23:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-12 18:23:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-10-12 18:23:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-12 18:23:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-12 18:23:45,085 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 27 [2020-10-12 18:23:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:45,086 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-12 18:23:45,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:23:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-12 18:23:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 18:23:45,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:45,088 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] [2020-10-12 18:23:45,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:23:45,088 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash -983862936, now seen corresponding path program 2 times [2020-10-12 18:23:45,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:45,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428235495] [2020-10-12 18:23:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:45,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-12 18:23:45,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:23:45,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-12 18:23:45,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:23:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:23:45,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:45,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:45,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:23:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:45,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:23:45,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 18:23:45,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:23:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:23:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:45,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:45,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:45,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:23:45,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:45,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:45,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:23:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:45,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:23:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 18:23:45,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428235495] [2020-10-12 18:23:45,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:45,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:23:45,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004819594] [2020-10-12 18:23:45,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:23:45,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:45,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:23:45,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:23:45,579 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 9 states. [2020-10-12 18:23:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:45,638 INFO L93 Difference]: Finished difference Result 44 states and 67 transitions. [2020-10-12 18:23:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:23:45,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-12 18:23:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:45,640 INFO L225 Difference]: With dead ends: 44 [2020-10-12 18:23:45,641 INFO L226 Difference]: Without dead ends: 40 [2020-10-12 18:23:45,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:23:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-12 18:23:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2020-10-12 18:23:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-12 18:23:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 50 transitions. [2020-10-12 18:23:45,652 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 50 transitions. Word has length 27 [2020-10-12 18:23:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:45,653 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 50 transitions. [2020-10-12 18:23:45,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:23:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2020-10-12 18:23:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 18:23:45,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:45,655 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:45,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:23:45,656 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:45,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:45,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1432995631, now seen corresponding path program 3 times [2020-10-12 18:23:45,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:45,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863908017] [2020-10-12 18:23:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:45,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:46,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:50,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 18:23:50,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:23:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:23:50,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:23:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:50,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:23:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:50,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:50,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:23:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:50,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:51,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:23:51,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:23:51,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-10-12 18:23:51,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:23:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:51,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:23:51,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:51,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:51,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:51,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:51,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:51,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:23:51,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:51,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:51,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:51,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:51,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:23:51,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:23:51,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:23:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:51,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:51,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:51,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:51,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:51,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:23:51,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:51,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:23:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:51,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:51,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:51,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:51,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:23:51,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:23:51,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863908017] [2020-10-12 18:23:51,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:51,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:23:51,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567493301] [2020-10-12 18:23:51,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:23:51,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:51,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:23:51,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:23:51,526 INFO L87 Difference]: Start difference. First operand 33 states and 50 transitions. Second operand 12 states. [2020-10-12 18:23:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:51,624 INFO L93 Difference]: Finished difference Result 53 states and 92 transitions. [2020-10-12 18:23:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:23:51,625 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2020-10-12 18:23:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:51,627 INFO L225 Difference]: With dead ends: 53 [2020-10-12 18:23:51,627 INFO L226 Difference]: Without dead ends: 49 [2020-10-12 18:23:51,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:23:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-12 18:23:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2020-10-12 18:23:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-12 18:23:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 64 transitions. [2020-10-12 18:23:51,640 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 64 transitions. Word has length 40 [2020-10-12 18:23:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:51,641 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 64 transitions. [2020-10-12 18:23:51,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:23:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2020-10-12 18:23:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 18:23:51,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:51,643 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:51,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:23:51,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:51,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1731864637, now seen corresponding path program 4 times [2020-10-12 18:23:51,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:51,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449971477] [2020-10-12 18:23:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:51,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:51,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:53,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:56,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:23:56,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:23:56,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:23:56,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:23:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:23:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:23:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:56,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:23:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:56,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:56,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:23:56,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:23:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:56,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:23:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:56,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:56,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:58,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:23:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:23:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2182 [2020-10-12 18:23:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:23:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:23:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:58,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:58,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:58,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:23:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:23:58,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:23:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:23:58,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:23:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:58,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:58,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:23:59,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:23:59,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 18:23:59,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:23:59,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:23:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:23:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:59,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:23:59,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:23:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:23:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:23:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:23:59,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:23:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:23:59,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:23:59,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:23:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-12 18:23:59,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449971477] [2020-10-12 18:23:59,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:23:59,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:23:59,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505823466] [2020-10-12 18:23:59,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:23:59,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:23:59,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:23:59,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:23:59,179 INFO L87 Difference]: Start difference. First operand 38 states and 64 transitions. Second operand 10 states. [2020-10-12 18:23:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:23:59,275 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-12 18:23:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:23:59,278 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-12 18:23:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:23:59,279 INFO L225 Difference]: With dead ends: 53 [2020-10-12 18:23:59,279 INFO L226 Difference]: Without dead ends: 49 [2020-10-12 18:23:59,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:23:59,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-12 18:23:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2020-10-12 18:23:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-12 18:23:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2020-10-12 18:23:59,306 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 41 [2020-10-12 18:23:59,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:23:59,307 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2020-10-12 18:23:59,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:23:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2020-10-12 18:23:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 18:23:59,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:23:59,318 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:23:59,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:23:59,319 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:23:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:23:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1893001919, now seen corresponding path program 5 times [2020-10-12 18:23:59,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:23:59,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23099116] [2020-10-12 18:23:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:23:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:23:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:23:59,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3173 [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:24:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:02,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:02,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:02,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:02,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:02,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:02,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:02,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-12 18:24:02,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:02,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 18:24:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:02,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:02,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:02,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:02,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:02,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:24:02,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:02,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:03,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:03,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:24:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 18:24:03,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:24:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:03,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:03,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:03,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:03,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:03,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:03,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:03,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:24:03,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23099116] [2020-10-12 18:24:03,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:03,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:24:03,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797234927] [2020-10-12 18:24:03,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:24:03,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:03,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:24:03,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:03,202 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand 12 states. [2020-10-12 18:24:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:03,295 INFO L93 Difference]: Finished difference Result 56 states and 104 transitions. [2020-10-12 18:24:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:24:03,297 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2020-10-12 18:24:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:03,298 INFO L225 Difference]: With dead ends: 56 [2020-10-12 18:24:03,299 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 18:24:03,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 18:24:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2020-10-12 18:24:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-12 18:24:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 80 transitions. [2020-10-12 18:24:03,318 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 80 transitions. Word has length 40 [2020-10-12 18:24:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:03,322 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 80 transitions. [2020-10-12 18:24:03,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:24:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 80 transitions. [2020-10-12 18:24:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 18:24:03,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:03,324 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:03,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:24:03,325 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:03,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:03,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1705155691, now seen corresponding path program 6 times [2020-10-12 18:24:03,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:03,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208323672] [2020-10-12 18:24:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:03,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:03,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3300 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:06,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:06,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:06,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:06,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:06,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:06,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:06,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:06,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:07,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:07,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:07,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:07,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:07,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:07,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:07,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:07,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:07,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:07,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:07,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:07,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:07,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-12 18:24:07,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208323672] [2020-10-12 18:24:07,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:07,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 18:24:07,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187943259] [2020-10-12 18:24:07,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:24:07,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:07,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:24:07,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:07,503 INFO L87 Difference]: Start difference. First operand 43 states and 80 transitions. Second operand 12 states. [2020-10-12 18:24:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:07,577 INFO L93 Difference]: Finished difference Result 62 states and 119 transitions. [2020-10-12 18:24:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:24:07,577 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-10-12 18:24:07,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:07,579 INFO L225 Difference]: With dead ends: 62 [2020-10-12 18:24:07,580 INFO L226 Difference]: Without dead ends: 58 [2020-10-12 18:24:07,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-12 18:24:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2020-10-12 18:24:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 18:24:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 88 transitions. [2020-10-12 18:24:07,600 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 88 transitions. Word has length 41 [2020-10-12 18:24:07,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:07,601 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 88 transitions. [2020-10-12 18:24:07,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:24:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 88 transitions. [2020-10-12 18:24:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 18:24:07,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:07,603 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:07,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:24:07,605 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:07,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1426163185, now seen corresponding path program 1 times [2020-10-12 18:24:07,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:07,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737241290] [2020-10-12 18:24:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:07,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:07,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2512 [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:24:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:10,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:10,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:10,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:10,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:10,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:10,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:10,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:10,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:10,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:10,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 18:24:10,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:10,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:10,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:10,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:24:10,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:11,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:11,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:11,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:11,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:11,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:11,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:11,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:11,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:11,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:11,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:11,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:24:11,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:11,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-12 18:24:11,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737241290] [2020-10-12 18:24:11,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:11,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:11,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676459911] [2020-10-12 18:24:11,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:11,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:11,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:11,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:11,078 INFO L87 Difference]: Start difference. First operand 46 states and 88 transitions. Second operand 11 states. [2020-10-12 18:24:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:11,137 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-12 18:24:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:24:11,137 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2020-10-12 18:24:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:11,139 INFO L225 Difference]: With dead ends: 70 [2020-10-12 18:24:11,139 INFO L226 Difference]: Without dead ends: 66 [2020-10-12 18:24:11,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:11,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-12 18:24:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2020-10-12 18:24:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 18:24:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 88 transitions. [2020-10-12 18:24:11,151 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 88 transitions. Word has length 42 [2020-10-12 18:24:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:11,151 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 88 transitions. [2020-10-12 18:24:11,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 88 transitions. [2020-10-12 18:24:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 18:24:11,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:11,153 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:11,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:24:11,153 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:11,153 INFO L82 PathProgramCache]: Analyzing trace with hash 499839773, now seen corresponding path program 7 times [2020-10-12 18:24:11,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:11,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857007398] [2020-10-12 18:24:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:11,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:11,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 18:24:12,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:24:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1222 [2020-10-12 18:24:12,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 18:24:12,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:12,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:12,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:12,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:12,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:12,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:24:12,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:12,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:12,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:12,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:12,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:12,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:12,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:12,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-12 18:24:12,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857007398] [2020-10-12 18:24:12,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:12,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:12,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196515500] [2020-10-12 18:24:12,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:12,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:12,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:12,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:12,707 INFO L87 Difference]: Start difference. First operand 46 states and 88 transitions. Second operand 11 states. [2020-10-12 18:24:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:12,785 INFO L93 Difference]: Finished difference Result 60 states and 112 transitions. [2020-10-12 18:24:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:24:12,785 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-10-12 18:24:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:12,786 INFO L225 Difference]: With dead ends: 60 [2020-10-12 18:24:12,786 INFO L226 Difference]: Without dead ends: 56 [2020-10-12 18:24:12,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:24:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-12 18:24:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2020-10-12 18:24:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-12 18:24:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 88 transitions. [2020-10-12 18:24:12,795 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 88 transitions. Word has length 41 [2020-10-12 18:24:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:12,795 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 88 transitions. [2020-10-12 18:24:12,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 88 transitions. [2020-10-12 18:24:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 18:24:12,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:12,797 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:12,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:24:12,797 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:12,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:12,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1123642284, now seen corresponding path program 8 times [2020-10-12 18:24:12,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:12,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942335063] [2020-10-12 18:24:12,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:12,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:13,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:17,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:24:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:24:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:24:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:17,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:17,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:17,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:17,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:17,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:17,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:17,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:18,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:18,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1775 [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:24:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:24:19,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:19,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:19,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:19,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:19,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:24:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:19,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:19,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:19,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:19,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:19,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:19,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:24:19,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:24:20,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:24:20,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:20,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:20,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:20,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:20,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:20,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-12 18:24:20,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942335063] [2020-10-12 18:24:20,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:20,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 18:24:20,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409429307] [2020-10-12 18:24:20,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:24:20,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:20,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:24:20,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:24:20,067 INFO L87 Difference]: Start difference. First operand 46 states and 88 transitions. Second operand 13 states. [2020-10-12 18:24:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:20,192 INFO L93 Difference]: Finished difference Result 81 states and 182 transitions. [2020-10-12 18:24:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:24:20,193 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2020-10-12 18:24:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:20,196 INFO L225 Difference]: With dead ends: 81 [2020-10-12 18:24:20,196 INFO L226 Difference]: Without dead ends: 77 [2020-10-12 18:24:20,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:24:20,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-12 18:24:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 51. [2020-10-12 18:24:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-12 18:24:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 107 transitions. [2020-10-12 18:24:20,209 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 107 transitions. Word has length 54 [2020-10-12 18:24:20,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:20,210 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 107 transitions. [2020-10-12 18:24:20,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:24:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 107 transitions. [2020-10-12 18:24:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 18:24:20,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:20,211 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:20,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:24:20,212 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:20,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:20,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1762062488, now seen corresponding path program 9 times [2020-10-12 18:24:20,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:20,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764706865] [2020-10-12 18:24:20,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:20,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:24:25,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:24:25,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:25,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:25,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:25,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:25,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:25,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:25,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:28,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:30,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:24:30,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 18:24:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:30,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:30,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:30,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:30,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:24:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:31,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:24:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:31,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:31,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:31,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:31,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:31,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:24:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:31,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:31,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:31,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:31,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:31,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:31,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:31,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:31,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:24:31,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:31,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 59 proven. 14 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-12 18:24:31,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764706865] [2020-10-12 18:24:31,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:31,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 18:24:31,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884906225] [2020-10-12 18:24:31,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:24:31,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:31,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:24:31,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:24:31,288 INFO L87 Difference]: Start difference. First operand 51 states and 107 transitions. Second operand 9 states. [2020-10-12 18:24:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:31,505 INFO L93 Difference]: Finished difference Result 154 states and 563 transitions. [2020-10-12 18:24:31,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:24:31,506 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-12 18:24:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:31,508 INFO L225 Difference]: With dead ends: 154 [2020-10-12 18:24:31,509 INFO L226 Difference]: Without dead ends: 88 [2020-10-12 18:24:31,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:24:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-12 18:24:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 76. [2020-10-12 18:24:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-12 18:24:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 154 transitions. [2020-10-12 18:24:31,532 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 154 transitions. Word has length 55 [2020-10-12 18:24:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:31,532 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 154 transitions. [2020-10-12 18:24:31,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:24:31,533 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 154 transitions. [2020-10-12 18:24:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:24:31,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:31,537 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:31,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:24:31,537 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:31,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1563122484, now seen corresponding path program 2 times [2020-10-12 18:24:31,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:31,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936358048] [2020-10-12 18:24:31,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:31,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:31,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:36,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:24:36,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:24:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:24:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:24:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:24:36,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:36,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:36,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:36,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:36,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:36,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:36,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:37,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 18:24:38,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:24:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2233 [2020-10-12 18:24:38,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:24:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:24:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:38,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:38,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:24:38,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:24:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:24:38,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:38,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:24:38,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:38,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 18:24:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:24:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:38,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:38,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:24:38,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:24:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:38,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:38,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:38,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:38,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 58 proven. 14 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-12 18:24:38,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936358048] [2020-10-12 18:24:38,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:38,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:24:38,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372089693] [2020-10-12 18:24:38,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:24:38,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:38,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:24:38,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:24:38,990 INFO L87 Difference]: Start difference. First operand 76 states and 154 transitions. Second operand 10 states. [2020-10-12 18:24:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:39,180 INFO L93 Difference]: Finished difference Result 161 states and 425 transitions. [2020-10-12 18:24:39,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:24:39,180 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-10-12 18:24:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:39,183 INFO L225 Difference]: With dead ends: 161 [2020-10-12 18:24:39,184 INFO L226 Difference]: Without dead ends: 90 [2020-10-12 18:24:39,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:24:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-12 18:24:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2020-10-12 18:24:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-12 18:24:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 163 transitions. [2020-10-12 18:24:39,218 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 163 transitions. Word has length 56 [2020-10-12 18:24:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:39,219 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 163 transitions. [2020-10-12 18:24:39,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:24:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 163 transitions. [2020-10-12 18:24:39,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:24:39,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:39,224 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:39,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:24:39,224 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:39,225 INFO L82 PathProgramCache]: Analyzing trace with hash 153740623, now seen corresponding path program 10 times [2020-10-12 18:24:39,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:39,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444128201] [2020-10-12 18:24:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:39,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-12 18:24:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:24:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 18:24:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:24:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:24:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:24:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:44,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:44,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:44,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:44,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:44,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:44,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:44,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:44,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:46,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 18:24:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 18:24:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:24:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:24:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:24:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 18:24:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:49,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:49,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:49,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:49,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:49,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:24:49,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-12 18:24:49,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:24:49,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:24:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:50,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:24:50,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 18:24:50,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:24:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:24:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:50,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:50,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:50,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:24:50,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:50,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:50,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:50,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:50,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:50,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:50,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:24:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 18:24:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:50,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:50,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:50,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:50,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:50,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:24:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:50,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:24:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:50,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:50,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:51,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2198 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:24:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 18:24:52,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:24:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 18:24:52,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 18:24:52,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:24:52,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:24:52,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:24:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 18:24:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:24:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:52,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:52,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:24:52,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:24:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:52,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:24:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:24:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 18:24:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:24:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:52,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:24:52,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:52,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:24:52,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:24:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:24:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 112 proven. 112 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-10-12 18:24:52,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444128201] [2020-10-12 18:24:52,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:24:52,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 18:24:52,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096628131] [2020-10-12 18:24:52,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:24:52,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:24:52,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:24:52,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:24:52,642 INFO L87 Difference]: Start difference. First operand 81 states and 163 transitions. Second operand 11 states. [2020-10-12 18:24:52,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:24:52,744 INFO L93 Difference]: Finished difference Result 123 states and 259 transitions. [2020-10-12 18:24:52,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:24:52,744 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-10-12 18:24:52,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:24:52,745 INFO L225 Difference]: With dead ends: 123 [2020-10-12 18:24:52,745 INFO L226 Difference]: Without dead ends: 52 [2020-10-12 18:24:52,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:24:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-12 18:24:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-12 18:24:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-12 18:24:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-10-12 18:24:52,753 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 94 [2020-10-12 18:24:52,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:24:52,753 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-10-12 18:24:52,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:24:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-10-12 18:24:52,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 18:24:52,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:24:52,754 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:24:52,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:24:52,755 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:24:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:24:52,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1474757101, now seen corresponding path program 11 times [2020-10-12 18:24:52,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:24:52,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324331021] [2020-10-12 18:24:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:24:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:52,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:53,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:54,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:57,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 18:24:57,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-12 18:24:57,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:24:57,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:57,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:24:57,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 18:24:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:24:57,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:57,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:24:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:57,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:24:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:24:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:24:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:24:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:24:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:24:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:24:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:24:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:24:57,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:24:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:24:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:57,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:58,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:59,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:24:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:02,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:25:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:25:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:02,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:03,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:04,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:04,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:04,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:04,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:04,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:04,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:25:04,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:04,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:04,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:04,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:04,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:04,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:04,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:04,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:04,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:04,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:04,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:04,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:04,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:04,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:04,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2748 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:25:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:25:07,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:07,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:07,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:07,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:07,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:07,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:07,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:07,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:25:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:25:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 123 proven. 177 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-10-12 18:25:07,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324331021] [2020-10-12 18:25:07,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:25:07,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-12 18:25:07,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676617517] [2020-10-12 18:25:07,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:25:07,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:25:07,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:25:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:25:07,726 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 18 states. [2020-10-12 18:25:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:25:08,070 INFO L93 Difference]: Finished difference Result 117 states and 182 transitions. [2020-10-12 18:25:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:25:08,071 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2020-10-12 18:25:08,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:25:08,072 INFO L225 Difference]: With dead ends: 117 [2020-10-12 18:25:08,072 INFO L226 Difference]: Without dead ends: 69 [2020-10-12 18:25:08,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:25:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-12 18:25:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2020-10-12 18:25:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-12 18:25:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2020-10-12 18:25:08,086 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 96 [2020-10-12 18:25:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:25:08,086 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2020-10-12 18:25:08,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:25:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2020-10-12 18:25:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-12 18:25:08,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:25:08,091 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:25:08,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:25:08,091 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:25:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:25:08,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1040445716, now seen corresponding path program 12 times [2020-10-12 18:25:08,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:25:08,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816037926] [2020-10-12 18:25:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:25:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:08,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:09,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:13,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-12 18:25:13,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:13,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:25:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:13,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:25:13,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:13,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:25:13,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:13,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:25:13,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:13,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:25:13,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:13,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:25:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:13,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:13,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:15,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:18,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 18:25:18,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 18:25:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:25:18,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:25:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:25:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 18:25:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:18,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:19,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:19,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:19,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:19,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:20,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:25:23,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-12 18:25:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:25:23,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:25:23,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 18:25:23,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:25:23,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:23,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:23,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:23,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:23,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:23,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:23,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:23,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:25:23,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:24,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:24,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:24,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:24,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:25:24,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:24,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:24,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:24,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:24,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:24,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:24,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:24,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:25:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:24,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:24,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 18:25:29,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 18:25:29,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:25:29,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:25:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:25:29,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 18:25:29,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 18:25:29,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 18:25:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:29,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 18:25:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:29,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:25:29,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:29,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:29,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:29,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:29,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:25:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:29,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:29,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:25:29,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:25:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:25:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-12 18:25:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 18:25:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:25:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:25:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 18:25:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 18:25:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:25:29,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:25:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:25:29,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:25:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:25:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 18:25:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:25:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:25:29,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:25:29,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:25:29,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:25:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:25:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:25:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:25:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:25:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:25:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:25:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 255 proven. 390 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-10-12 18:25:29,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816037926] [2020-10-12 18:25:29,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:25:29,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 18:25:29,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258687350] [2020-10-12 18:25:29,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 18:25:29,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:25:29,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 18:25:29,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:25:29,570 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand 20 states. [2020-10-12 18:25:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:25:30,048 INFO L93 Difference]: Finished difference Result 136 states and 196 transitions. [2020-10-12 18:25:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 18:25:30,049 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 136 [2020-10-12 18:25:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:25:30,051 INFO L225 Difference]: With dead ends: 136 [2020-10-12 18:25:30,051 INFO L226 Difference]: Without dead ends: 84 [2020-10-12 18:25:30,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:25:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-12 18:25:30,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 61. [2020-10-12 18:25:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-12 18:25:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2020-10-12 18:25:30,065 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 136 [2020-10-12 18:25:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:25:30,066 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2020-10-12 18:25:30,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 18:25:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2020-10-12 18:25:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 18:25:30,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:25:30,067 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:25:30,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:25:30,068 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:25:30,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:25:30,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1200034344, now seen corresponding path program 13 times [2020-10-12 18:25:30,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:25:30,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535414203] [2020-10-12 18:25:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:25:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 18:25:30,078 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 18:25:30,078 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 18:25:30,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:25:30,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:25:30 BoogieIcfgContainer [2020-10-12 18:25:30,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:25:30,107 INFO L168 Benchmark]: Toolchain (without parser) took 110231.27 ms. Allocated memory was 139.5 MB in the beginning and 891.3 MB in the end (delta: 751.8 MB). Free memory was 102.8 MB in the beginning and 576.2 MB in the end (delta: -473.4 MB). Peak memory consumption was 278.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,108 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.31 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,110 INFO L168 Benchmark]: Boogie Preprocessor took 99.62 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 93.2 MB in the beginning and 180.4 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,111 INFO L168 Benchmark]: RCFGBuilder took 236.96 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 168.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,111 INFO L168 Benchmark]: TraceAbstraction took 109614.54 ms. Allocated memory was 201.3 MB in the beginning and 891.3 MB in the end (delta: 690.0 MB). Free memory was 167.4 MB in the beginning and 576.2 MB in the end (delta: -408.8 MB). Peak memory consumption was 281.1 MB. Max. memory is 7.1 GB. [2020-10-12 18:25:30,115 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.31 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.62 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 93.2 MB in the beginning and 180.4 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 236.96 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 168.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 109614.54 ms. Allocated memory was 201.3 MB in the beginning and 891.3 MB in the end (delta: 690.0 MB). Free memory was 167.4 MB in the beginning and 576.2 MB in the end (delta: -408.8 MB). Peak memory consumption was 281.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] int x = 5; [L25] CALL, EXPR fibo(x) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND FALSE !(n == 1) [L11] CALL, EXPR fibo(n-1) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND TRUE n < 1 [L7] return 0; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-1) [L11] CALL, EXPR fibo(n-2) [L6] COND FALSE !(n < 1) [L8] COND TRUE n == 1 [L9] return 1; [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L11] RET, EXPR fibo(n-2) [L11] return fibo(n-1) + fibo(n-2); [L25] RET, EXPR fibo(x) [L25] int result = fibo(x); [L26] COND TRUE result == 5 [L27] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 109.5s, OverallIterations: 18, TraceHistogramMax: 19, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 407 SDtfs, 385 SDslu, 1886 SDs, 0 SdLazy, 1188 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 513 GetRequests, 304 SyntacticMatches, 18 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 167 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 106.3s InterpolantComputationTime, 952 NumberOfCodeBlocks, 952 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 826 ConstructedInterpolants, 0 QuantifiedInterpolants, 160080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 1564/2438 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...