/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_2calls_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:31:03,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:31:03,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:31:03,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:31:03,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:31:03,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:31:03,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:31:03,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:31:03,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:31:03,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:31:03,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:31:03,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:31:03,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:31:03,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:31:03,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:31:03,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:31:03,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:31:03,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:31:03,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:31:03,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:31:03,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:31:03,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:31:03,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:31:03,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:31:03,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:31:03,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:31:03,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:31:03,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:31:03,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:31:03,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:31:03,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:31:03,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:31:03,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:31:03,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:31:03,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:31:03,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:31:03,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:31:03,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:31:03,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:31:03,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:31:03,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:31:03,367 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 [2020-10-14 07:31:03,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:31:03,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:31:03,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:31:03,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:31:03,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:31:03,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:31:03,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:31:03,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:31:03,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:31:03,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:31:03,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:31:03,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:31:03,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:31:03,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:31:03,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:31:03,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:31:03,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:31:03,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:31:03,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:31:03,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:31:03,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:31:03,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:31:03,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:31:03,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:31:03,400 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:31:03,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:31:03,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:31:03,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:31:03,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:31:03,760 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:31:03,761 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-10-14 07:31:03,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e8b9c168/9c944780d6664c05bcc842738214f89e/FLAGbb2778741 [2020-10-14 07:31:04,276 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:31:04,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-10-14 07:31:04,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e8b9c168/9c944780d6664c05bcc842738214f89e/FLAGbb2778741 [2020-10-14 07:31:04,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e8b9c168/9c944780d6664c05bcc842738214f89e [2020-10-14 07:31:04,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:31:04,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:31:04,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:31:04,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:31:04,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:31:04,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:04,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dd4a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04, skipping insertion in model container [2020-10-14 07:31:04,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:04,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:31:04,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:31:04,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:31:04,920 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:31:04,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:31:04,953 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:31:04,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04 WrapperNode [2020-10-14 07:31:04,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:31:04,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:31:04,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:31:04,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:31:04,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:04,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (1/1) ... [2020-10-14 07:31:05,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:31:05,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:31:05,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:31:05,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:31:05,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (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 [2020-10-14 07:31:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:31:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:31:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-14 07:31:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-14 07:31:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:31:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:31:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:31:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-14 07:31:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-14 07:31:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:31:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:31:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:31:05,329 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:31:05,330 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:31:05,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:05 BoogieIcfgContainer [2020-10-14 07:31:05,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:31:05,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:31:05,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:31:05,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:31:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:31:04" (1/3) ... [2020-10-14 07:31:05,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b42938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:05, skipping insertion in model container [2020-10-14 07:31:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:04" (2/3) ... [2020-10-14 07:31:05,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b42938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:05, skipping insertion in model container [2020-10-14 07:31:05,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:05" (3/3) ... [2020-10-14 07:31:05,342 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-10-14 07:31:05,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:31:05,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:31:05,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:31:05,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:31:05,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:31:05,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:31:05,418 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:31:05,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:31:05,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:31:05,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:31:05,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:31:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-14 07:31:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 07:31:05,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:05,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:05,452 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:05,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-10-14 07:31:05,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:05,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915081771] [2020-10-14 07:31:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:05,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:05,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:05,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:31:05,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 07:31:05,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:05,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:05,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:05,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:05,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:31:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:05,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:05,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:05,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:05,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:05,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:31:05,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:05,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:05,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:05,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:05,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:05,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:05,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:05,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:05,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:05,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:05,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:05,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:31:05,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:05,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:05,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:31:05,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915081771] [2020-10-14 07:31:05,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:31:05,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:31:05,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888271256] [2020-10-14 07:31:05,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:31:05,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:05,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:31:05,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:31:05,809 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-10-14 07:31:05,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:05,912 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-10-14 07:31:05,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:31:05,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-14 07:31:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:05,928 INFO L225 Difference]: With dead ends: 44 [2020-10-14 07:31:05,928 INFO L226 Difference]: Without dead ends: 30 [2020-10-14 07:31:05,932 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 [2020-10-14 07:31:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-14 07:31:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-14 07:31:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 07:31:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-14 07:31:05,988 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-10-14 07:31:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:05,989 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-14 07:31:05,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:31:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-14 07:31:05,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 07:31:05,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:05,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:05,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:31:05,993 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:05,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:05,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-10-14 07:31:05,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:05,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069993981] [2020-10-14 07:31:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:06,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 07:31:06,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 07:31:06,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:06,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:06,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:06,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:06,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:31:06,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:06,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:06,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:06,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:06,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:06,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 07:31:06,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:06,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:31:06,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069993981] [2020-10-14 07:31:06,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:31:06,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:31:06,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255857305] [2020-10-14 07:31:06,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:31:06,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:06,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:31:06,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:31:06,211 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-10-14 07:31:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:06,270 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-10-14 07:31:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:31:06,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 07:31:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:06,273 INFO L225 Difference]: With dead ends: 36 [2020-10-14 07:31:06,273 INFO L226 Difference]: Without dead ends: 32 [2020-10-14 07:31:06,274 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 [2020-10-14 07:31:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-14 07:31:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-10-14 07:31:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 07:31:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-14 07:31:06,283 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-10-14 07:31:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:06,284 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-14 07:31:06,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:31:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-14 07:31:06,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-14 07:31:06,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:06,286 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:06,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:31:06,286 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:06,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:06,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-10-14 07:31:06,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:06,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39093062] [2020-10-14 07:31:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:06,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 07:31:06,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-14 07:31:06,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:06,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 07:31:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:06,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:06,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:06,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:06,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:06,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:06,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:06,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:06,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 07:31:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 07:31:07,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:07,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:07,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:31:07,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:31:07,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:07,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:07,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:31:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:07,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:31:07,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:31:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 07:31:07,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39093062] [2020-10-14 07:31:07,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:07,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 07:31:07,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997502864] [2020-10-14 07:31:07,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:31:07,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:07,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:31:07,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:31:07,167 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 7 states. [2020-10-14 07:31:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:07,291 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-10-14 07:31:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:31:07,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-14 07:31:07,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:07,293 INFO L225 Difference]: With dead ends: 41 [2020-10-14 07:31:07,294 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 07:31:07,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:31:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 07:31:07,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-14 07:31:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 07:31:07,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-10-14 07:31:07,305 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 26 [2020-10-14 07:31:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:07,305 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-10-14 07:31:07,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:31:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2020-10-14 07:31:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 07:31:07,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:07,308 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:07,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:31:07,308 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:07,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:07,309 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-10-14 07:31:07,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:07,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040839687] [2020-10-14 07:31:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:31:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:07,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:07,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:07,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:31:07,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:31:07,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:31:07,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-14 07:31:07,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:31:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:07,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:07,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:31:07,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:07,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:07,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:07,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:07,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:31:07,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:07,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:07,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 07:31:07,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040839687] [2020-10-14 07:31:07,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:31:07,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:31:07,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565523194] [2020-10-14 07:31:07,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:31:07,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:07,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:31:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:31:07,809 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 7 states. [2020-10-14 07:31:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:07,934 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2020-10-14 07:31:07,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:31:07,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-14 07:31:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:07,936 INFO L225 Difference]: With dead ends: 42 [2020-10-14 07:31:07,937 INFO L226 Difference]: Without dead ends: 38 [2020-10-14 07:31:07,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:31:07,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-14 07:31:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-10-14 07:31:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 07:31:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-10-14 07:31:07,946 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 27 [2020-10-14 07:31:07,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:07,946 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-10-14 07:31:07,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:31:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2020-10-14 07:31:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 07:31:07,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:07,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:07,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:31:07,949 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:07,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:07,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1725129826, now seen corresponding path program 1 times [2020-10-14 07:31:07,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:07,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900226574] [2020-10-14 07:31:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:07,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:31:08,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:31:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 07:31:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:08,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:31:08,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:08,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:08,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:08,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:31:08,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:31:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 07:31:08,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:08,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:31:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:08,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:08,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:08,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:31:08,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:08,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:08,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:08,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:08,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:08,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:08,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:31:08,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:08,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:08,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:31:08,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 07:31:08,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900226574] [2020-10-14 07:31:08,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:31:08,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:31:08,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558888805] [2020-10-14 07:31:08,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:31:08,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:08,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:31:08,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:31:08,465 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 7 states. [2020-10-14 07:31:08,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:08,601 INFO L93 Difference]: Finished difference Result 49 states and 66 transitions. [2020-10-14 07:31:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:31:08,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-14 07:31:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:08,603 INFO L225 Difference]: With dead ends: 49 [2020-10-14 07:31:08,604 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 07:31:08,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:31:08,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 07:31:08,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2020-10-14 07:31:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-14 07:31:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-10-14 07:31:08,624 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 28 [2020-10-14 07:31:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:08,624 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-10-14 07:31:08,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:31:08,625 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2020-10-14 07:31:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:31:08,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:08,630 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:08,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:31:08,630 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:08,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:08,631 INFO L82 PathProgramCache]: Analyzing trace with hash -910208130, now seen corresponding path program 1 times [2020-10-14 07:31:08,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:08,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746087645] [2020-10-14 07:31:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:08,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:11,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:11,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:11,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:13,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 07:31:13,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 07:31:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 07:31:13,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:13,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:13,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 07:31:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:31:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:13,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:13,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:13,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:13,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:13,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:13,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:13,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:13,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:13,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:13,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:13,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:14,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 07:31:17,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:31:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4135 [2020-10-14 07:31:17,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:31:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 07:31:17,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:17,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:31:17,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:31:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:17,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:17,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:31:17,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:17,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:17,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:31:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:17,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:17,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:17,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:31:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 07:31:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 07:31:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:31:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:31:17,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 07:31:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:17,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:17,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:31:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:17,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:17,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 07:31:17,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746087645] [2020-10-14 07:31:17,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:17,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 07:31:17,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564789840] [2020-10-14 07:31:17,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:31:17,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:17,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:31:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:31:17,955 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 6 states. [2020-10-14 07:31:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:18,033 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-10-14 07:31:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:31:18,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-14 07:31:18,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:18,035 INFO L225 Difference]: With dead ends: 68 [2020-10-14 07:31:18,035 INFO L226 Difference]: Without dead ends: 39 [2020-10-14 07:31:18,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:31:18,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-14 07:31:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-10-14 07:31:18,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 07:31:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-14 07:31:18,045 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 52 [2020-10-14 07:31:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:18,045 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-14 07:31:18,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:31:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-14 07:31:18,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 07:31:18,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:18,047 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:18,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:31:18,048 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash 794281190, now seen corresponding path program 1 times [2020-10-14 07:31:18,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:18,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098404529] [2020-10-14 07:31:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:18,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:18,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:21,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:23,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 07:31:23,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:31:23,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:31:23,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:23,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:23,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:31:23,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:31:23,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:31:23,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:23,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:23,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:23,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:31:23,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:23,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:23,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:23,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:25,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 07:31:25,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:31:25,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2769 [2020-10-14 07:31:25,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:25,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:31:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:31:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 07:31:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:25,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:25,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:31:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:31:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 07:31:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:25,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:31:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:31:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:25,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:25,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:25,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:25,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:31:25,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:25,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:25,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:25,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:31:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:25,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:26,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:31:26,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:26,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 07:31:26,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:26,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:31:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:26,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:26,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:26,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:26,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:26,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:31:26,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:26,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:26,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:26,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:26,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:26,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:26,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:26,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:31:26,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:26,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:26,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 07:31:26,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098404529] [2020-10-14 07:31:26,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:26,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:31:26,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383730088] [2020-10-14 07:31:26,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:31:26,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:26,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:31:26,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:31:26,187 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 10 states. [2020-10-14 07:31:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:26,535 INFO L93 Difference]: Finished difference Result 86 states and 132 transitions. [2020-10-14 07:31:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:31:26,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-14 07:31:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:26,537 INFO L225 Difference]: With dead ends: 86 [2020-10-14 07:31:26,537 INFO L226 Difference]: Without dead ends: 50 [2020-10-14 07:31:26,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-10-14 07:31:26,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-14 07:31:26,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2020-10-14 07:31:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-14 07:31:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2020-10-14 07:31:26,548 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 54 [2020-10-14 07:31:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:26,548 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-10-14 07:31:26,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:31:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2020-10-14 07:31:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 07:31:26,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:26,550 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:26,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:31:26,550 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:26,551 INFO L82 PathProgramCache]: Analyzing trace with hash 148008126, now seen corresponding path program 1 times [2020-10-14 07:31:26,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:26,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644261933] [2020-10-14 07:31:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:26,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:26,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:27,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:30,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:31,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:31:31,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:31:31,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:31,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:31,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:31,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:31,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:31,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:31:31,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:31,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:31,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:31,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:32,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:32,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 07:31:36,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 07:31:36,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4423 [2020-10-14 07:31:36,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:31:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:36,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 07:31:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:36,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:31:36,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:36,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 07:31:36,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:31:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:36,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:36,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:36,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:36,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 07:31:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:31:36,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:36,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:31:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:36,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:36,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:31:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:31:36,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-14 07:31:36,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644261933] [2020-10-14 07:31:36,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:36,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:31:36,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502089336] [2020-10-14 07:31:36,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:31:36,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:36,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:31:36,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:31:36,206 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 9 states. [2020-10-14 07:31:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:36,382 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2020-10-14 07:31:36,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:31:36,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-14 07:31:36,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:36,388 INFO L225 Difference]: With dead ends: 55 [2020-10-14 07:31:36,389 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 07:31:36,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:31:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 07:31:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-14 07:31:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-14 07:31:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2020-10-14 07:31:36,407 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 56 [2020-10-14 07:31:36,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:36,407 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2020-10-14 07:31:36,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:31:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2020-10-14 07:31:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 07:31:36,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:36,413 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:36,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:31:36,413 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:36,414 INFO L82 PathProgramCache]: Analyzing trace with hash 151318536, now seen corresponding path program 2 times [2020-10-14 07:31:36,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:36,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526453769] [2020-10-14 07:31:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:36,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:36,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:37,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3100 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:31:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:31:39,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:31:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:39,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:39,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:39,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:39,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:39,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:31:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:31:39,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:31:39,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:39,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:31:40,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:40,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 07:31:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:31:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:31:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:31:40,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:40,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:31:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:40,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:40,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:31:40,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 07:31:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:31:40,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:31:40,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 07:31:40,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:31:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:40,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:40,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:31:40,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:40,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:40,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:40,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:40,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:31:40,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:40,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:40,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:31:40,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:40,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:40,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-14 07:31:40,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526453769] [2020-10-14 07:31:40,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:40,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:31:40,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824465739] [2020-10-14 07:31:40,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:31:40,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:40,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:31:40,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:31:40,273 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand 9 states. [2020-10-14 07:31:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:40,598 INFO L93 Difference]: Finished difference Result 115 states and 193 transitions. [2020-10-14 07:31:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:31:40,599 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-14 07:31:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:40,600 INFO L225 Difference]: With dead ends: 115 [2020-10-14 07:31:40,600 INFO L226 Difference]: Without dead ends: 70 [2020-10-14 07:31:40,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:31:40,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-14 07:31:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-14 07:31:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 07:31:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 101 transitions. [2020-10-14 07:31:40,621 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 101 transitions. Word has length 55 [2020-10-14 07:31:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:40,621 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 101 transitions. [2020-10-14 07:31:40,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:31:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 101 transitions. [2020-10-14 07:31:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 07:31:40,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:40,623 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:40,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:31:40,623 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:40,624 INFO L82 PathProgramCache]: Analyzing trace with hash 900204427, now seen corresponding path program 1 times [2020-10-14 07:31:40,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:40,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086836839] [2020-10-14 07:31:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:40,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:45,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 07:31:45,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:45,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:45,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:45,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:45,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:45,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:46,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:46,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:46,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:31:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:50,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 07:31:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:31:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 07:31:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 07:31:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:50,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:31:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:31:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:31:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:31:50,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:31:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:50,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:50,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:31:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:50,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 07:31:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:50,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 07:31:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2728 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 07:31:53,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:53,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:53,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:31:53,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:53,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:31:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:53,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:53,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:31:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:53,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:53,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:31:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:31:53,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:53,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:31:53,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:31:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:53,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:31:53,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-14 07:31:53,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086836839] [2020-10-14 07:31:53,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:31:53,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 07:31:53,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845035442] [2020-10-14 07:31:53,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:31:53,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:31:53,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:31:53,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:31:53,697 INFO L87 Difference]: Start difference. First operand 70 states and 101 transitions. Second operand 6 states. [2020-10-14 07:31:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:31:53,762 INFO L93 Difference]: Finished difference Result 134 states and 219 transitions. [2020-10-14 07:31:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:31:53,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2020-10-14 07:31:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:31:53,764 INFO L225 Difference]: With dead ends: 134 [2020-10-14 07:31:53,764 INFO L226 Difference]: Without dead ends: 70 [2020-10-14 07:31:53,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:31:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-14 07:31:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-14 07:31:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 07:31:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 100 transitions. [2020-10-14 07:31:53,776 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 100 transitions. Word has length 94 [2020-10-14 07:31:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:31:53,777 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 100 transitions. [2020-10-14 07:31:53,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:31:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 100 transitions. [2020-10-14 07:31:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 07:31:53,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:31:53,778 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:31:53,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:31:53,779 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:31:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:31:53,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1822439602, now seen corresponding path program 2 times [2020-10-14 07:31:53,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:31:53,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816820379] [2020-10-14 07:31:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:31:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:53,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:53,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:54,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:55,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:58,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:31:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:31:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:31:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:58,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:31:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:58,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:31:58,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:31:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:31:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:31:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:31:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:31:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:31:58,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:58,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:31:59,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:02,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 07:32:03,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 07:32:03,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 07:32:03,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:03,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 07:32:03,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 07:32:03,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:32:03,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:03,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:03,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:03,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:03,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:03,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:03,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:03,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:32:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:03,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:03,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:03,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 07:32:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:32:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:04,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:04,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-14 07:32:04,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816820379] [2020-10-14 07:32:04,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:32:04,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 07:32:04,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637597171] [2020-10-14 07:32:04,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:32:04,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:32:04,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:32:04,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:32:04,159 INFO L87 Difference]: Start difference. First operand 70 states and 100 transitions. Second operand 10 states. [2020-10-14 07:32:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:32:04,311 INFO L93 Difference]: Finished difference Result 131 states and 214 transitions. [2020-10-14 07:32:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:32:04,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-14 07:32:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:32:04,315 INFO L225 Difference]: With dead ends: 131 [2020-10-14 07:32:04,315 INFO L226 Difference]: Without dead ends: 67 [2020-10-14 07:32:04,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:32:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-14 07:32:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-10-14 07:32:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-14 07:32:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2020-10-14 07:32:04,325 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 81 [2020-10-14 07:32:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:32:04,325 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2020-10-14 07:32:04,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:32:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2020-10-14 07:32:04,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 07:32:04,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:32:04,327 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:32:04,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 07:32:04,328 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:32:04,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:32:04,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 3 times [2020-10-14 07:32:04,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:32:04,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356008937] [2020-10-14 07:32:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:32:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 07:32:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 07:32:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 07:32:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:32:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:04,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:32:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 07:32:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 07:32:04,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:32:04,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 07:32:04,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:32:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 07:32:04,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:04,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:32:04,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:32:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:32:04,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:04,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:04,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:04,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:32:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:32:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:32:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:04,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:04,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:32:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:04,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:04,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:04,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:04,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-14 07:32:04,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356008937] [2020-10-14 07:32:04,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:32:04,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:32:04,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975227218] [2020-10-14 07:32:04,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:32:04,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:32:04,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:32:04,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:32:04,982 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand 17 states. [2020-10-14 07:32:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:32:05,171 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2020-10-14 07:32:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 07:32:05,171 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2020-10-14 07:32:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:32:05,173 INFO L225 Difference]: With dead ends: 94 [2020-10-14 07:32:05,176 INFO L226 Difference]: Without dead ends: 90 [2020-10-14 07:32:05,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:32:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-14 07:32:05,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 72. [2020-10-14 07:32:05,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 07:32:05,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2020-10-14 07:32:05,197 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 68 [2020-10-14 07:32:05,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:32:05,197 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2020-10-14 07:32:05,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:32:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2020-10-14 07:32:05,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 07:32:05,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:32:05,202 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:32:05,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 07:32:05,203 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:32:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:32:05,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1711191765, now seen corresponding path program 1 times [2020-10-14 07:32:05,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:32:05,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026860713] [2020-10-14 07:32:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:32:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:05,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:10,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-14 07:32:10,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 07:32:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 07:32:10,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:10,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:32:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:32:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:32:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:10,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:10,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:32:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:10,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:10,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4322 [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:32:14,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:32:14,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 07:32:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:14,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:32:14,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:32:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:32:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:32:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 07:32:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:14,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:14,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:14,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:32:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:32:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:14,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:32:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 07:32:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:14,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:14,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:14,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:32:14,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:14,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:32:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:32:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:14,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:14,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:14,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:14,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:14,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:14,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:14,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:14,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:14,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:14,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:14,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:14,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:14,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 07:32:14,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026860713] [2020-10-14 07:32:14,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:32:14,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:32:14,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719671269] [2020-10-14 07:32:14,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:32:14,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:32:14,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:32:14,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:32:14,875 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 9 states. [2020-10-14 07:32:15,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:32:15,061 INFO L93 Difference]: Finished difference Result 154 states and 265 transitions. [2020-10-14 07:32:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:32:15,061 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-10-14 07:32:15,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:32:15,063 INFO L225 Difference]: With dead ends: 154 [2020-10-14 07:32:15,063 INFO L226 Difference]: Without dead ends: 91 [2020-10-14 07:32:15,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:32:15,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-14 07:32:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-14 07:32:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-14 07:32:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 146 transitions. [2020-10-14 07:32:15,076 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 146 transitions. Word has length 69 [2020-10-14 07:32:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:32:15,077 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 146 transitions. [2020-10-14 07:32:15,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:32:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 146 transitions. [2020-10-14 07:32:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 07:32:15,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:32:15,079 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:32:15,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 07:32:15,079 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:32:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:32:15,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1595904748, now seen corresponding path program 4 times [2020-10-14 07:32:15,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:32:15,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809651239] [2020-10-14 07:32:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:32:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:15,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:20,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 07:32:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:20,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:32:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:20,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:20,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:32:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:20,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:20,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:25,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 07:32:25,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:32:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:25,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 07:32:30,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 07:32:30,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:32:30,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:32:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 07:32:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:30,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:32:30,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 07:32:30,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:32:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:32:30,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:32:30,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:30,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:32:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:32:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:30,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:30,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:32:30,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:32:30,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 07:32:30,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:32:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:32:30,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:32:30,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:30,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:32:30,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:30,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:30,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:30,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:32:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:32:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:30,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:32:30,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:30,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:32:30,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:30,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:30,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:30,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:30,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:30,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:30,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:30,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:30,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:30,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:30,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:30,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:30,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 30 proven. 40 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-14 07:32:30,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809651239] [2020-10-14 07:32:30,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:32:30,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 07:32:30,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040723087] [2020-10-14 07:32:30,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:32:30,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:32:30,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:32:30,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:32:30,589 INFO L87 Difference]: Start difference. First operand 91 states and 146 transitions. Second operand 9 states. [2020-10-14 07:32:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:32:30,777 INFO L93 Difference]: Finished difference Result 173 states and 321 transitions. [2020-10-14 07:32:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:32:30,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-14 07:32:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:32:30,779 INFO L225 Difference]: With dead ends: 173 [2020-10-14 07:32:30,780 INFO L226 Difference]: Without dead ends: 91 [2020-10-14 07:32:30,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:32:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-14 07:32:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-14 07:32:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-14 07:32:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 140 transitions. [2020-10-14 07:32:30,794 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 140 transitions. Word has length 82 [2020-10-14 07:32:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:32:30,795 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 140 transitions. [2020-10-14 07:32:30,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:32:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 140 transitions. [2020-10-14 07:32:30,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:32:30,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:32:30,802 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:32:30,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 07:32:30,803 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:32:30,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:32:30,803 INFO L82 PathProgramCache]: Analyzing trace with hash -203815129, now seen corresponding path program 5 times [2020-10-14 07:32:30,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:32:30,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408155830] [2020-10-14 07:32:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:32:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:31,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:33,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:33,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:35,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 07:32:35,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-14 07:32:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 07:32:35,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:35,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:32:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:32:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:32:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:35,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:32:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:35,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:35,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:35,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:32:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:35,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:36,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:37,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:37,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:37,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:37,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:38,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 31 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:32:40,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 07:32:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:40,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:40,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:41,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:42,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:43,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:44,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 30 [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:45,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 07:32:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:32:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 07:32:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:45,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:45,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:45,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:46,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:32:46,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:32:46,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:32:46,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:46,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:46,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:46,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:46,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:32:46,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:46,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:32:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:46,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:46,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:46,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:46,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:46,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:32:46,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:46,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:46,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:46,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:46,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:46,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:46,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:46,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:46,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:46,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:32:46,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:46,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:32:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:46,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:47,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:48,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:49,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:49,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 07:32:51,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:32:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:32:51,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:32:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 07:32:51,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:51,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:51,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:32:51,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:51,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:32:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:32:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:51,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:51,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:51,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:51,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:51,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:51,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:51,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:51,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:51,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:51,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:51,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:32:51,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:32:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:51,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:51,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:32:52,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:32:52,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-14 07:32:52,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:32:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:32:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 07:32:52,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:52,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:32:52,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:32:52,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:32:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:32:52,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:32:52,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:32:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:32:52,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:32:52,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 07:32:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:32:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:52,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:32:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:52,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:52,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:32:52,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:52,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:52,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:52,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 154 proven. 153 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-14 07:32:52,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408155830] [2020-10-14 07:32:52,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:32:52,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 07:32:52,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949507568] [2020-10-14 07:32:52,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 07:32:52,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:32:52,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 07:32:52,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-10-14 07:32:52,600 INFO L87 Difference]: Start difference. First operand 91 states and 140 transitions. Second operand 17 states. [2020-10-14 07:32:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:32:53,394 INFO L93 Difference]: Finished difference Result 200 states and 349 transitions. [2020-10-14 07:32:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 07:32:53,394 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 150 [2020-10-14 07:32:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:32:53,396 INFO L225 Difference]: With dead ends: 200 [2020-10-14 07:32:53,396 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 07:32:53,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=983, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 07:32:53,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 07:32:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 101. [2020-10-14 07:32:53,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-14 07:32:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 139 transitions. [2020-10-14 07:32:53,409 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 139 transitions. Word has length 150 [2020-10-14 07:32:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:32:53,410 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 139 transitions. [2020-10-14 07:32:53,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 07:32:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2020-10-14 07:32:53,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 07:32:53,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:32:53,412 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:32:53,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 07:32:53,413 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:32:53,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:32:53,413 INFO L82 PathProgramCache]: Analyzing trace with hash -46122593, now seen corresponding path program 6 times [2020-10-14 07:32:53,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:32:53,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523883136] [2020-10-14 07:32:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:32:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:53,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:58,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 07:32:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:58,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:32:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:32:58,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:32:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:32:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:32:58,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:32:58,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:32:58,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:32:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:32:58,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:32:59,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:01,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:03,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 07:33:03,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-14 07:33:03,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:33:03,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:03,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 07:33:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:33:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 07:33:03,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:03,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:03,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:04,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:05,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:05,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:05,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:08,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 07:33:08,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 07:33:08,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:33:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:08,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:33:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:33:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:08,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:08,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 07:33:09,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:33:09,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 07:33:09,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:09,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:33:09,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:09,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:33:09,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:09,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:33:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:33:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:33:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 07:33:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:33:09,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:33:09,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:33:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:33:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:33:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:33:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:33:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:33:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:33:09,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:33:09,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:33:09,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:33:09,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:33:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:33:09,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:33:09,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:33:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:33:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 07:33:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 07:33:09,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:33:09,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 07:33:09,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:33:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:33:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 07:33:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 07:33:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:33:09,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:33:09,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:33:09,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:33:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 07:33:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:33:09,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:33:09,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:33:09,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:33:09,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:33:09,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:33:09,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:33:09,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:33:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:33:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:33:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:33:09,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:33:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 54 proven. 70 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-14 07:33:09,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523883136] [2020-10-14 07:33:09,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:33:09,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 07:33:09,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786129676] [2020-10-14 07:33:09,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 07:33:09,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:33:09,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 07:33:09,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-14 07:33:09,704 INFO L87 Difference]: Start difference. First operand 101 states and 139 transitions. Second operand 16 states. [2020-10-14 07:33:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:33:10,258 INFO L93 Difference]: Finished difference Result 193 states and 284 transitions. [2020-10-14 07:33:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:33:10,259 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2020-10-14 07:33:10,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:33:10,260 INFO L225 Difference]: With dead ends: 193 [2020-10-14 07:33:10,260 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 07:33:10,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2020-10-14 07:33:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 07:33:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 07:33:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 07:33:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 07:33:10,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2020-10-14 07:33:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:33:10,265 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 07:33:10,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 07:33:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 07:33:10,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 07:33:10,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 07:33:10,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 07:33:11,195 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 16 [2020-10-14 07:33:11,421 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 21 [2020-10-14 07:33:11,425 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 07:33:11,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:33:11,425 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:33:11,425 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 07:33:11,426 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-10-14 07:33:11,426 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-14 07:33:11,426 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-10-14 07:33:11,427 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (= main_~x~0 4) [2020-10-14 07:33:11,427 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-10-14 07:33:11,427 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-10-14 07:33:11,427 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-10-14 07:33:11,427 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= |fibo2_#in~n| 2))) [2020-10-14 07:33:11,427 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= |fibo2_#t~ret2| 1) .cse0 (<= 1 |fibo2_#t~ret2|)) (and (<= 4 fibo2_~n) .cse0))) (not (<= |fibo2_#in~n| 2))) [2020-10-14 07:33:11,428 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-10-14 07:33:11,428 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-10-14 07:33:11,428 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|)) [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-14 07:33:11,429 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (or (not (<= |fibo1_#in~n| 2)) (and (= |fibo1_#t~ret0| 1) (<= 2 |fibo1_#in~n|))) (= fibo1_~n |fibo1_#in~n|) (or (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2)) (<= 5 fibo1_~n) (<= fibo1_~n 3))) [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-10-14 07:33:11,429 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-10-14 07:33:11,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:33:11 BoogieIcfgContainer [2020-10-14 07:33:11,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:33:11,438 INFO L168 Benchmark]: Toolchain (without parser) took 126758.18 ms. Allocated memory was 147.8 MB in the beginning and 1.1 GB in the end (delta: 923.8 MB). Free memory was 104.3 MB in the beginning and 707.3 MB in the end (delta: -603.0 MB). Peak memory consumption was 320.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,438 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.07 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,440 INFO L168 Benchmark]: Boogie Preprocessor took 125.48 ms. Allocated memory was 147.8 MB in the beginning and 202.9 MB in the end (delta: 55.1 MB). Free memory was 94.4 MB in the beginning and 181.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,441 INFO L168 Benchmark]: RCFGBuilder took 254.53 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 168.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,441 INFO L168 Benchmark]: TraceAbstraction took 126100.53 ms. Allocated memory was 202.9 MB in the beginning and 1.1 GB in the end (delta: 868.7 MB). Free memory was 167.3 MB in the beginning and 707.3 MB in the end (delta: -540.0 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:33:11,444 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.07 ms. Allocated memory is still 147.8 MB. Free memory was 103.9 MB in the beginning and 94.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.48 ms. Allocated memory was 147.8 MB in the beginning and 202.9 MB in the end (delta: 55.1 MB). Free memory was 94.4 MB in the beginning and 181.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.53 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 168.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 126100.53 ms. Allocated memory was 202.9 MB in the beginning and 1.1 GB in the end (delta: 868.7 MB). Free memory was 167.3 MB in the beginning and 707.3 MB in the end (delta: -540.0 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 124.8s, OverallIterations: 16, TraceHistogramMax: 11, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 464 SDtfs, 432 SDslu, 2405 SDs, 0 SdLazy, 2043 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 507 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=15, 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, 16 MinimizatonAttempts, 64 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 317 PreInvPairs, 622 NumberOfFragments, 77 HoareAnnotationTreeSize, 317 FomulaSimplifications, 18461 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1565 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 120.4s InterpolantComputationTime, 964 NumberOfCodeBlocks, 964 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 948 ConstructedInterpolants, 0 QuantifiedInterpolants, 165048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1147/1569 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 correct! Received shutdown request...