/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:55,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:55,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:55,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:55,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:55,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:55,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:55,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:55,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:55,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:55,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:55,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:55,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:55,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:55,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:55,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:55,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:55,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:55,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:55,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:55,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:55,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:55,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:55,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:55,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:55,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:55,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:55,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:55,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:55,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:55,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:55,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:55,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:55,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:55,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:55,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:55,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:55,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:55,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:55,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:55,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:55,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:51:55,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:55,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:55,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:55,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:55,417 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:55,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:55,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:55,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:55,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:55,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:55,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:55,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:55,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:55,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:55,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:55,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:55,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:55,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:55,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:55,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:55,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:55,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:55,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:55,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:55,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:55,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:55,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:55,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:55,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:55,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:51:55,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:55,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:55,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:55,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:55,961 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:55,963 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 00:51:56,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f270ece86/ea5a1b2d21b048f89ebec228022faff2/FLAG18e3352ca [2020-09-25 00:51:56,525 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:56,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 00:51:56,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f270ece86/ea5a1b2d21b048f89ebec228022faff2/FLAG18e3352ca [2020-09-25 00:51:56,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f270ece86/ea5a1b2d21b048f89ebec228022faff2 [2020-09-25 00:51:56,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:51:56,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:51:56,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:56,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:51:56,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:51:56,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41395291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:56, skipping insertion in model container [2020-09-25 00:51:56,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:56" (1/1) ... [2020-09-25 00:51:56,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:51:56,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:51:57,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:57,231 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:51:57,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:57,266 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:51:57,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57 WrapperNode [2020-09-25 00:51:57,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:57,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:51:57,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:51:57,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:51:57,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... [2020-09-25 00:51:57,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:51:57,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:51:57,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:51:57,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:51:57,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:51:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:51:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 00:51:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:51:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:51:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:51:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 00:51:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:51:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:51:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:51:57,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:51:57,706 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:51:57,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:57 BoogieIcfgContainer [2020-09-25 00:51:57,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:51:57,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:51:57,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:51:57,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:51:57,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:51:56" (1/3) ... [2020-09-25 00:51:57,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826b787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:57, skipping insertion in model container [2020-09-25 00:51:57,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:57" (2/3) ... [2020-09-25 00:51:57,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826b787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:57, skipping insertion in model container [2020-09-25 00:51:57,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:57" (3/3) ... [2020-09-25 00:51:57,740 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-09-25 00:51:57,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:51:57,787 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:51:57,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:51:57,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:51:57,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:51:57,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:51:57,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:51:57,852 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:51:57,852 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:51:57,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:51:57,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:51:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 00:51:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:51:57,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:57,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:57,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:57,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:57,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 00:51:57,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:57,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580823557] [2020-09-25 00:51:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:51:58,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:51:58,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:51:58,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:58,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:58,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:51:58,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:58,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:58,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:51:58,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:58,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:51:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:51:58,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580823557] [2020-09-25 00:51:58,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:58,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:51:58,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069386963] [2020-09-25 00:51:58,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:58,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:58,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:58,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:58,389 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-25 00:51:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:58,548 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 00:51:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:58,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 00:51:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:58,564 INFO L225 Difference]: With dead ends: 50 [2020-09-25 00:51:58,565 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 00:51:58,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 00:51:58,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 00:51:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:51:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 00:51:58,628 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 00:51:58,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:58,629 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 00:51:58,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:58,629 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 00:51:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 00:51:58,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:58,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:58,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:51:58,633 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:58,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:58,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 00:51:58,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:58,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815730997] [2020-09-25 00:51:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:51:58,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 00:51:58,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:51:58,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:51:58,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:51:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:58,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:51:58,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:58,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:58,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:51:58,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:51:58,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:51:58,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:51:58,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815730997] [2020-09-25 00:51:58,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:58,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:51:58,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422862028] [2020-09-25 00:51:58,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:51:58,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:58,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:51:58,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:58,902 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-09-25 00:51:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:58,986 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 00:51:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:58,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-25 00:51:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:58,989 INFO L225 Difference]: With dead ends: 39 [2020-09-25 00:51:58,989 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:51:58,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:51:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 00:51:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:51:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 00:51:59,000 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 00:51:59,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:59,000 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 00:51:59,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:51:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 00:51:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 00:51:59,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:59,003 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:59,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:51:59,003 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:59,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 00:51:59,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:59,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882968691] [2020-09-25 00:51:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 00:51:59,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:51:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 00:51:59,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:51:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:51:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:59,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:59,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:51:59,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:59,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:51:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:51:59,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 00:51:59,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:51:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:51:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:51:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:59,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:51:59,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:51:59,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:51:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:51:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:59,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:59,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:51:59,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:59,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:51:59,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:59,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:51:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:59,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:51:59,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882968691] [2020-09-25 00:51:59,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:51:59,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:51:59,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999082364] [2020-09-25 00:51:59,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:51:59,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:51:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:51:59,871 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-09-25 00:52:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:00,022 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2020-09-25 00:52:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:00,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 00:52:00,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:00,025 INFO L225 Difference]: With dead ends: 55 [2020-09-25 00:52:00,025 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:52:00,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:52:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 00:52:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 00:52:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-09-25 00:52:00,035 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2020-09-25 00:52:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:00,036 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-09-25 00:52:00,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-09-25 00:52:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 00:52:00,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:00,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:00,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:00,039 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:00,039 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 00:52:00,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:00,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330844792] [2020-09-25 00:52:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:52:00,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-09-25 00:52:00,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:00,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:00,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:00,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 00:52:00,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:00,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:00,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:00,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:00,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:00,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:00,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:00,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:00,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:00,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330844792] [2020-09-25 00:52:00,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:00,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:00,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879117242] [2020-09-25 00:52:00,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:00,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:00,891 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 6 states. [2020-09-25 00:52:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:00,976 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-09-25 00:52:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:00,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 00:52:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:00,978 INFO L225 Difference]: With dead ends: 45 [2020-09-25 00:52:00,978 INFO L226 Difference]: Without dead ends: 39 [2020-09-25 00:52:00,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-25 00:52:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-09-25 00:52:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 00:52:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-09-25 00:52:00,988 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 37 [2020-09-25 00:52:00,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:00,989 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-09-25 00:52:00,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-09-25 00:52:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 00:52:00,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:00,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:00,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:00,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:00,992 INFO L82 PathProgramCache]: Analyzing trace with hash -693972664, now seen corresponding path program 1 times [2020-09-25 00:52:00,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:00,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314518732] [2020-09-25 00:52:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 00:52:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:52:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:01,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:01,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:01,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:52:01,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:01,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:52:01,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:52:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:52:01,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:01,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:01,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:52:01,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:01,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:01,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314518732] [2020-09-25 00:52:01,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:01,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:01,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629542342] [2020-09-25 00:52:01,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:01,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:01,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:01,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:01,867 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2020-09-25 00:52:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:02,010 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2020-09-25 00:52:02,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:02,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 00:52:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:02,012 INFO L225 Difference]: With dead ends: 75 [2020-09-25 00:52:02,012 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 00:52:02,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:02,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 00:52:02,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-09-25 00:52:02,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 00:52:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-09-25 00:52:02,023 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 38 [2020-09-25 00:52:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:02,023 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-09-25 00:52:02,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-09-25 00:52:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 00:52:02,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:02,026 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:02,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:02,026 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:02,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:02,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1275966376, now seen corresponding path program 2 times [2020-09-25 00:52:02,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:02,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789297714] [2020-09-25 00:52:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:02,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:02,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:04,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:52:04,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2389 [2020-09-25 00:52:04,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:04,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:04,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 00:52:04,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:04,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:04,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:04,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:04,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:04,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:04,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:04,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:04,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:04,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:04,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:04,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:04,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:04,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:06,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:06,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2370 [2020-09-25 00:52:06,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:06,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:06,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:06,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:06,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:06,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:07,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:07,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 00:52:07,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:07,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:07,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:52:07,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:07,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:07,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:07,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:07,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:07,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:07,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:07,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 00:52:07,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789297714] [2020-09-25 00:52:07,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:07,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:07,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711094779] [2020-09-25 00:52:07,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:07,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:07,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:07,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:07,228 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 8 states. [2020-09-25 00:52:07,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:07,378 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2020-09-25 00:52:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:52:07,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-09-25 00:52:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:07,381 INFO L225 Difference]: With dead ends: 95 [2020-09-25 00:52:07,381 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 00:52:07,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:07,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 00:52:07,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-09-25 00:52:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-25 00:52:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-09-25 00:52:07,394 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 55 [2020-09-25 00:52:07,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:07,394 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-09-25 00:52:07,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2020-09-25 00:52:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 00:52:07,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:07,398 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:07,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:07,398 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:07,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:07,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1106616419, now seen corresponding path program 3 times [2020-09-25 00:52:07,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:07,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132185661] [2020-09-25 00:52:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:07,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:07,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:09,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:12,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:12,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:12,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:12,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:12,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:12,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:12,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:15,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 00:52:15,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3172 [2020-09-25 00:52:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:15,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:16,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:16,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1136 [2020-09-25 00:52:16,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:16,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:16,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:16,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:16,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:16,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:16,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:16,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:16,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:52:16,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:16,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:16,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:16,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:16,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:52:16,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:16,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 73 proven. 12 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-25 00:52:16,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132185661] [2020-09-25 00:52:16,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:16,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:16,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123728155] [2020-09-25 00:52:17,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:17,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:17,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:17,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:17,001 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand 8 states. [2020-09-25 00:52:17,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:17,174 INFO L93 Difference]: Finished difference Result 115 states and 156 transitions. [2020-09-25 00:52:17,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:52:17,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2020-09-25 00:52:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:17,177 INFO L225 Difference]: With dead ends: 115 [2020-09-25 00:52:17,177 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 00:52:17,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:52:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 00:52:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-09-25 00:52:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 00:52:17,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-09-25 00:52:17,188 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 73 [2020-09-25 00:52:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:17,189 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-09-25 00:52:17,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-09-25 00:52:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-25 00:52:17,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:17,191 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:17,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:17,191 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:17,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1698410615, now seen corresponding path program 4 times [2020-09-25 00:52:17,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:17,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780976101] [2020-09-25 00:52:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:17,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:17,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:22,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 00:52:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 00:52:22,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:22,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:52:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:22,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:22,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:22,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:22,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:22,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:22,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:22,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:22,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:27,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:52:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:27,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 00:52:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:27,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:52:27,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:27,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:27,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:27,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:27,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:27,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:27,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:27,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:27,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:27,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:27,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:27,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:27,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 78 proven. 27 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 00:52:27,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780976101] [2020-09-25 00:52:27,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:27,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:52:27,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531612983] [2020-09-25 00:52:27,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:27,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:27,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:27,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:27,654 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 8 states. [2020-09-25 00:52:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:27,781 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-09-25 00:52:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:52:27,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-09-25 00:52:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:27,784 INFO L225 Difference]: With dead ends: 71 [2020-09-25 00:52:27,784 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 00:52:27,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 00:52:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2020-09-25 00:52:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 00:52:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-09-25 00:52:27,794 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 90 [2020-09-25 00:52:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:27,794 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-09-25 00:52:27,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-09-25 00:52:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-25 00:52:27,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:27,796 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:27,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:52:27,797 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:27,797 INFO L82 PathProgramCache]: Analyzing trace with hash -692654002, now seen corresponding path program 5 times [2020-09-25 00:52:27,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:27,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190258401] [2020-09-25 00:52:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:27,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:28,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:32,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 00:52:32,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:32,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:32,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:32,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:32,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:32,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:32,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 00:52:37,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 00:52:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 00:52:37,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:52:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:37,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 00:52:37,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:38,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:38,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:38,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-09-25 00:52:38,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:52:38,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:38,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:39,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:52:39,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:39,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:39,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:39,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:39,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:39,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:52:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:43,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:43,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4057 [2020-09-25 00:52:43,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:43,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:43,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:43,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:43,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 00:52:43,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:43,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:52:43,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:43,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:43,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:43,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:43,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:43,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:43,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:43,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:43,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:43,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:43,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:43,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:43,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:43,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 93 proven. 135 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-09-25 00:52:43,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190258401] [2020-09-25 00:52:43,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:43,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:52:43,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452751479] [2020-09-25 00:52:43,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:52:43,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:43,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:52:43,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:43,689 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 12 states. [2020-09-25 00:52:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:44,024 INFO L93 Difference]: Finished difference Result 141 states and 191 transitions. [2020-09-25 00:52:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:52:44,026 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2020-09-25 00:52:44,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:44,029 INFO L225 Difference]: With dead ends: 141 [2020-09-25 00:52:44,029 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 00:52:44,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-09-25 00:52:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 00:52:44,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 82. [2020-09-25 00:52:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 00:52:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2020-09-25 00:52:44,042 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 108 [2020-09-25 00:52:44,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:44,042 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2020-09-25 00:52:44,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:52:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2020-09-25 00:52:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 00:52:44,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:44,044 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:44,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:52:44,045 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:44,045 INFO L82 PathProgramCache]: Analyzing trace with hash 25915455, now seen corresponding path program 6 times [2020-09-25 00:52:44,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:44,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347260693] [2020-09-25 00:52:44,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:49,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:52:49,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 00:52:49,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 00:52:49,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:52:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 00:52:49,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 00:52:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking...