/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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:52:32,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:52:32,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:52:32,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:52:32,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:52:32,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:52:32,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:52:32,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:52:32,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:52:32,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:52:32,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:52:32,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:52:32,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:52:32,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:52:32,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:52:32,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:52:32,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:52:32,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:52:32,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:52:32,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:52:32,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:52:32,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:52:32,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:52:32,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:52:32,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:52:32,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:52:32,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:52:32,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:52:32,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:52:32,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:52:32,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:52:32,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:52:32,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:52:32,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:52:32,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:52:32,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:52:32,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:52:32,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:52:32,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:52:32,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:52:32,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:52:32,397 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 00:52:32,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:52:32,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:52:32,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:52:32,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:52:32,447 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:52:32,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:52:32,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:52:32,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:52:32,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:52:32,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:52:32,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:52:32,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:52:32,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:52:32,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:52:32,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:52:32,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:52:32,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:52:32,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:52:32,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:52:32,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:52:32,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:52:32,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:52:32,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:52:32,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:52:32,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:52:32,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:52:32,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:52:32,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:52:32,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:52:32,453 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 00:52:32,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:52:32,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:52:32,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:52:32,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:52:32,946 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:52:32,948 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 00:52:33,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f38863ef8/12f868d81ff440b1b7ad52e5e19e482c/FLAG0077ea784 [2020-09-25 00:52:33,565 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:52:33,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-25 00:52:33,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f38863ef8/12f868d81ff440b1b7ad52e5e19e482c/FLAG0077ea784 [2020-09-25 00:52:33,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f38863ef8/12f868d81ff440b1b7ad52e5e19e482c [2020-09-25 00:52:33,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:52:33,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:52:33,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:33,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:52:33,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:52:33,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:33" (1/1) ... [2020-09-25 00:52:33,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:33, skipping insertion in model container [2020-09-25 00:52:33,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:33" (1/1) ... [2020-09-25 00:52:33,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:52:33,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:52:34,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:34,168 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:52:34,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:34,206 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:52:34,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34 WrapperNode [2020-09-25 00:52:34,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:34,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:52:34,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:52:34,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:52:34,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (1/1) ... [2020-09-25 00:52:34,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:52:34,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:52:34,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:52:34,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:52:34,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (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 00:52:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:52:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:52:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 00:52:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:52:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:52:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:52:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 00:52:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:52:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:52:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:52:34,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:52:34,649 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:52:34,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:34 BoogieIcfgContainer [2020-09-25 00:52:34,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:52:34,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:52:34,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:52:34,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:52:34,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:52:33" (1/3) ... [2020-09-25 00:52:34,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:34, skipping insertion in model container [2020-09-25 00:52:34,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:34" (2/3) ... [2020-09-25 00:52:34,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:34, skipping insertion in model container [2020-09-25 00:52:34,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:34" (3/3) ... [2020-09-25 00:52:34,672 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-25 00:52:34,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:52:34,702 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:52:34,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:52:34,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:52:34,785 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:52:34,786 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:52:34,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:52:34,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:52:34,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:52:34,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:52:34,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:52:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-25 00:52:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:52:34,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:34,816 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 00:52:34,816 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:34,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:34,823 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-25 00:52:34,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:34,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864470614] [2020-09-25 00:52:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:52:35,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 00:52:35,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:52:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:52:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:35,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:35,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:35,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:35,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:52:35,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:35,392 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 00:52:35,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864470614] [2020-09-25 00:52:35,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:35,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:52:35,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920196914] [2020-09-25 00:52:35,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:35,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:35,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:35,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:35,423 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-25 00:52:35,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:35,604 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 00:52:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:52:35,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 00:52:35,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:35,621 INFO L225 Difference]: With dead ends: 45 [2020-09-25 00:52:35,621 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 00:52:35,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 00:52:35,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 00:52:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 00:52:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 00:52:35,699 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-25 00:52:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:35,700 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 00:52:35,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 00:52:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 00:52:35,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:35,709 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:35,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:52:35,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:35,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:35,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-25 00:52:35,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:35,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793355988] [2020-09-25 00:52:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 00:52:36,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 00:52:36,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:36,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:52:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:36,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:52:36,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:36,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:36,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:36,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 00:52:36,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:36,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:36,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:36,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:36,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:36,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 00:52:36,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793355988] [2020-09-25 00:52:36,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:36,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:52:36,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250804317] [2020-09-25 00:52:36,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:52:36,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:36,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:52:36,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:36,325 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-09-25 00:52:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:36,494 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-25 00:52:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:52:36,495 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 00:52:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:36,496 INFO L225 Difference]: With dead ends: 37 [2020-09-25 00:52:36,496 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 00:52:36,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:52:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 00:52:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 00:52:36,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:52:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 00:52:36,506 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-25 00:52:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:36,506 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 00:52:36,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:52:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 00:52:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:52:36,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:36,508 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 00:52:36,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:52:36,509 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-25 00:52:36,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:36,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210204456] [2020-09-25 00:52:36,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 00:52:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-25 00:52:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:52:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:36,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:36,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:36,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:36,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:36,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:36,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:36,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 00:52:36,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:36,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:52:36,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:37,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:52:37,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:37,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:37,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:37,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:52:37,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:37,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:52:37,235 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:37,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210204456] [2020-09-25 00:52:37,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:37,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:52:37,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533152371] [2020-09-25 00:52:37,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:52:37,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:37,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:52:37,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:52:37,241 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-25 00:52:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:37,556 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-25 00:52:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:52:37,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-25 00:52:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:37,558 INFO L225 Difference]: With dead ends: 42 [2020-09-25 00:52:37,559 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 00:52:37,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:52:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 00:52:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-25 00:52:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 00:52:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-25 00:52:37,567 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-25 00:52:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:37,568 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-25 00:52:37,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:52:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-25 00:52:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 00:52:37,570 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:37,570 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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 00:52:37,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:37,571 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-25 00:52:37,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:37,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740865019] [2020-09-25 00:52:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:52:37,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-25 00:52:37,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:52:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:37,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:37,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:37,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:37,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:37,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:37,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:37,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:38,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:38,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:52:38,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:52:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 00:52:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:38,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:38,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:52:38,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:38,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:38,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:38,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:38,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:38,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:38,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:38,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:38,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:38,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 00:52:38,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740865019] [2020-09-25 00:52:38,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:38,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 00:52:38,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073078164] [2020-09-25 00:52:38,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:52:38,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:38,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:52:38,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:52:38,390 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-25 00:52:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:38,733 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 00:52:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:52:38,733 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-25 00:52:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:38,735 INFO L225 Difference]: With dead ends: 47 [2020-09-25 00:52:38,735 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 00:52:38,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-25 00:52:38,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 00:52:38,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 00:52:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 00:52:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-25 00:52:38,748 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-25 00:52:38,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:38,748 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-25 00:52:38,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:52:38,748 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-25 00:52:38,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 00:52:38,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:38,750 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:38,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:38,751 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:38,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:38,751 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-25 00:52:38,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:38,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520836353] [2020-09-25 00:52:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:38,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 00:52:39,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-09-25 00:52:39,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:39,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:39,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:39,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:39,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:52:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:52:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:39,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 00:52:39,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:39,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:52:39,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:39,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:52:39,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:39,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:39,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:39,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:39,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:39,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:52:39,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:39,918 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 00:52:39,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520836353] [2020-09-25 00:52:39,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:39,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 00:52:39,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314285749] [2020-09-25 00:52:39,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 00:52:39,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:39,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 00:52:39,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:52:39,921 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 16 states. [2020-09-25 00:52:40,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:40,390 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-25 00:52:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 00:52:40,391 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2020-09-25 00:52:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:40,393 INFO L225 Difference]: With dead ends: 52 [2020-09-25 00:52:40,393 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 00:52:40,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=811, Unknown=0, NotChecked=0, Total=930 [2020-09-25 00:52:40,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 00:52:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 00:52:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 00:52:40,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 00:52:40,403 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 51 [2020-09-25 00:52:40,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:40,403 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 00:52:40,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 00:52:40,404 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 00:52:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 00:52:40,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:40,406 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:40,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:40,406 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:40,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:40,407 INFO L82 PathProgramCache]: Analyzing trace with hash 389514871, now seen corresponding path program 5 times [2020-09-25 00:52:40,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:40,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116169765] [2020-09-25 00:52:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 00:52:41,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 895 [2020-09-25 00:52:41,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 00:52:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:41,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:52:41,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 00:52:41,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 00:52:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:41,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 00:52:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:41,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:52:41,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:41,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:41,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:52:41,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:42,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:42,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:42,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:42,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:52:42,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 00:52:42,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116169765] [2020-09-25 00:52:42,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:42,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 00:52:42,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050598597] [2020-09-25 00:52:42,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 00:52:42,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:42,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 00:52:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:52:42,183 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 18 states. [2020-09-25 00:52:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:42,756 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-25 00:52:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 00:52:42,757 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2020-09-25 00:52:42,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:42,758 INFO L225 Difference]: With dead ends: 57 [2020-09-25 00:52:42,759 INFO L226 Difference]: Without dead ends: 51 [2020-09-25 00:52:42,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:52:42,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-25 00:52:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-25 00:52:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-25 00:52:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-25 00:52:42,768 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 59 [2020-09-25 00:52:42,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:42,769 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-25 00:52:42,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 00:52:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-25 00:52:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 00:52:42,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:42,774 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:42,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:42,774 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:42,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1451925313, now seen corresponding path program 6 times [2020-09-25 00:52:42,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:42,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397495197] [2020-09-25 00:52:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:42,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 00:52:44,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:44,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1545 [2020-09-25 00:52:44,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:52:44,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:44,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 00:52:44,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:44,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:44,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:44,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:44,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:44,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 00:52:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 00:52:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:52:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:52:44,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 00:52:44,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:44,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:44,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:44,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:52:44,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:44,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:44,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:44,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:44,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:44,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:44,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:45,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:45,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:45,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:45,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:52:45,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:45,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:45,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:45,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 00:52:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:45,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:45,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:45,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:45,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:52:45,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:45,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 98 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-25 00:52:45,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397495197] [2020-09-25 00:52:45,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:45,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 00:52:45,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031157990] [2020-09-25 00:52:45,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 00:52:45,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:45,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 00:52:45,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:52:45,389 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 20 states. [2020-09-25 00:52:46,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:46,127 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-09-25 00:52:46,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 00:52:46,127 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2020-09-25 00:52:46,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:46,129 INFO L225 Difference]: With dead ends: 62 [2020-09-25 00:52:46,129 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 00:52:46,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=1477, Unknown=0, NotChecked=0, Total=1640 [2020-09-25 00:52:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 00:52:46,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-25 00:52:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 00:52:46,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-25 00:52:46,147 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 67 [2020-09-25 00:52:46,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:46,148 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-25 00:52:46,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 00:52:46,148 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-25 00:52:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 00:52:46,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:46,152 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:46,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:46,153 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:46,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2078207049, now seen corresponding path program 7 times [2020-09-25 00:52:46,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:46,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211526493] [2020-09-25 00:52:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:52:47,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:47,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-09-25 00:52:47,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:52:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:47,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 00:52:47,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:47,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:47,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:47,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:47,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:47,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:52:48,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 00:52:48,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 00:52:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:52:48,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:48,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 00:52:48,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:52:48,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:52:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:52:48,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:52:48,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:48,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:48,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 00:52:48,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:48,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 00:52:48,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:48,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:48,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:48,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:52:48,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:48,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:48,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:48,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:48,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:48,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:48,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:48,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:48,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:48,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 18 proven. 129 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 00:52:49,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211526493] [2020-09-25 00:52:49,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:49,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 00:52:49,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005014912] [2020-09-25 00:52:49,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 00:52:49,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:49,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 00:52:49,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-09-25 00:52:49,069 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 22 states. [2020-09-25 00:52:49,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:49,973 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 00:52:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 00:52:49,973 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 75 [2020-09-25 00:52:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:49,975 INFO L225 Difference]: With dead ends: 67 [2020-09-25 00:52:49,975 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 00:52:49,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=1885, Unknown=0, NotChecked=0, Total=2070 [2020-09-25 00:52:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 00:52:49,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-25 00:52:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 00:52:49,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-09-25 00:52:49,995 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 75 [2020-09-25 00:52:49,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:49,995 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-09-25 00:52:49,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 00:52:49,995 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-09-25 00:52:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-25 00:52:50,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:50,001 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:50,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:52:50,002 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:50,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:50,002 INFO L82 PathProgramCache]: Analyzing trace with hash 768055297, now seen corresponding path program 8 times [2020-09-25 00:52:50,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:50,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093005686] [2020-09-25 00:52:50,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 00:52:51,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1960 [2020-09-25 00:52:51,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 00:52:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 00:52:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:52,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:52,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:52:52,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 00:52:52,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-25 00:52:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:52:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:52:52,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 00:52:52,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:52:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:52:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:52,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 00:52:52,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:52:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:52:52,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:52:53,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 00:52:53,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:53,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:53,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:52:53,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:53,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 00:52:53,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:53,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:53,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:53,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:53,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:52:53,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:53,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:53,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:53,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:53,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:52:53,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:53,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:53,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:53,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:53,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:53,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:53,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 00:52:53,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093005686] [2020-09-25 00:52:53,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:53,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 00:52:53,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663761233] [2020-09-25 00:52:53,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 00:52:53,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 00:52:53,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:52:53,754 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 23 states. [2020-09-25 00:52:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:54,894 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2020-09-25 00:52:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 00:52:54,894 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 83 [2020-09-25 00:52:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:54,897 INFO L225 Difference]: With dead ends: 72 [2020-09-25 00:52:54,897 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 00:52:54,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2272, Unknown=0, NotChecked=0, Total=2450 [2020-09-25 00:52:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 00:52:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 00:52:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 00:52:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 00:52:54,907 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 83 [2020-09-25 00:52:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:54,907 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 00:52:54,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 00:52:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 00:52:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 00:52:54,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:54,909 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:54,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:52:54,909 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:54,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1891881207, now seen corresponding path program 9 times [2020-09-25 00:52:54,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:54,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005839861] [2020-09-25 00:52:54,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:54,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 00:52:57,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2102 [2020-09-25 00:52:57,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 00:52:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:57,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 00:52:57,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:57,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:57,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:57,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:57,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-25 00:52:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:52:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:52:57,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 00:52:57,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 00:52:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:52:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:52:58,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 00:52:58,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:52:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:52:58,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:58,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:52:58,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 00:52:58,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:52:58,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:52:58,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:58,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:52:58,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 00:52:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:52:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:52:58,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 00:52:58,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:52:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:52:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:58,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:52:58,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:52:58,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:52:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:52:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:58,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:58,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:52:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:52:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:52:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:52:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:59,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:59,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:59,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:59,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:52:59,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:59,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:52:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:52:59,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:59,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:59,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:59,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:59,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:59,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:59,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:59,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:59,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:59,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:59,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 12 proven. 231 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 00:52:59,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005839861] [2020-09-25 00:52:59,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:59,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-09-25 00:52:59,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361059927] [2020-09-25 00:52:59,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-25 00:52:59,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:59,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-25 00:52:59,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-09-25 00:52:59,288 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 26 states. [2020-09-25 00:53:00,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:00,801 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2020-09-25 00:53:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 00:53:00,801 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 91 [2020-09-25 00:53:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:00,803 INFO L225 Difference]: With dead ends: 77 [2020-09-25 00:53:00,803 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 00:53:00,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=2851, Unknown=0, NotChecked=0, Total=3080 [2020-09-25 00:53:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 00:53:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-25 00:53:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 00:53:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-09-25 00:53:00,814 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 91 [2020-09-25 00:53:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:00,814 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-09-25 00:53:00,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-25 00:53:00,814 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-09-25 00:53:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 00:53:00,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:00,816 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:53:00,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:53:00,816 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2102223041, now seen corresponding path program 10 times [2020-09-25 00:53:00,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:00,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114119948] [2020-09-25 00:53:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:00,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:03,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 00:53:03,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2880 [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 00:53:03,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:03,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:03,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:03,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:53:03,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:03,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:03,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:04,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:53:04,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 00:53:04,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-25 00:53:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:53:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:04,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:53:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 00:53:04,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 00:53:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:04,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:53:04,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:04,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:04,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:53:04,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:04,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 00:53:04,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 00:53:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:53:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:04,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:53:05,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 00:53:05,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:53:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:53:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:05,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:53:05,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 00:53:05,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:53:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:53:05,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:05,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:53:05,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 00:53:05,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:53:05,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:53:05,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:05,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:53:05,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 00:53:05,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:53:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:53:05,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:53:05,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:53:05,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:53:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:53:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:05,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:53:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:53:05,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:53:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:53:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:05,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:05,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:05,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:05,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:53:05,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:53:05,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:53:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:53:05,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:06,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:06,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:53:06,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:06,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 20 proven. 280 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 00:53:06,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114119948] [2020-09-25 00:53:06,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:06,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-09-25 00:53:06,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623632231] [2020-09-25 00:53:06,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-25 00:53:06,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:06,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-25 00:53:06,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756 [2020-09-25 00:53:06,156 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 28 states. [2020-09-25 00:53:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:07,929 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-09-25 00:53:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-25 00:53:07,930 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 99 [2020-09-25 00:53:07,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:07,932 INFO L225 Difference]: With dead ends: 82 [2020-09-25 00:53:07,932 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 00:53:07,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=251, Invalid=3409, Unknown=0, NotChecked=0, Total=3660 [2020-09-25 00:53:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 00:53:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-25 00:53:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 00:53:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-09-25 00:53:07,940 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 99 [2020-09-25 00:53:07,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:07,941 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-09-25 00:53:07,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-25 00:53:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-09-25 00:53:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 00:53:07,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:07,942 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:53:07,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:53:07,943 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:07,943 INFO L82 PathProgramCache]: Analyzing trace with hash -505168329, now seen corresponding path program 11 times [2020-09-25 00:53:07,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:07,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387364941] [2020-09-25 00:53:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2596 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:53:10,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 00:53:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:10,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:10,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:10,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:10,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:11,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:53:11,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 00:53:11,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-09-25 00:53:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:53:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:11,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:11,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:53:11,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:11,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-25 00:53:11,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-25 00:53:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:11,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:53:11,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:11,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:53:11,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 00:53:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 00:53:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:53:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:53:12,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 00:53:12,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 00:53:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:53:12,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:53:12,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 00:53:12,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:53:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:53:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:53:12,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 00:53:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:53:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:53:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:53:12,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 00:53:12,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:53:12,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:53:12,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:13,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:53:13,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:13,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:53:13,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:53:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:53:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:13,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:13,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:53:13,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:13,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:53:13,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:13,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:53:13,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:53:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:13,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:53:13,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:13,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:53:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:53:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:53:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:13,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:13,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:53:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:13,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:13,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:13,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:13,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:53:13,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 40 proven. 317 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-09-25 00:53:13,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387364941] [2020-09-25 00:53:13,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:13,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-09-25 00:53:13,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248826700] [2020-09-25 00:53:13,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-25 00:53:13,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:13,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-25 00:53:13,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2020-09-25 00:53:13,602 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 30 states. [2020-09-25 00:53:15,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:15,579 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2020-09-25 00:53:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-25 00:53:15,580 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 107 [2020-09-25 00:53:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:15,582 INFO L225 Difference]: With dead ends: 87 [2020-09-25 00:53:15,582 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 00:53:15,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=4017, Unknown=0, NotChecked=0, Total=4290 [2020-09-25 00:53:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 00:53:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-25 00:53:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 00:53:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-09-25 00:53:15,591 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 107 [2020-09-25 00:53:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:15,592 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-09-25 00:53:15,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-25 00:53:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-09-25 00:53:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-25 00:53:15,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:15,593 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:53:15,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:53:15,594 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:15,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:15,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1831339647, now seen corresponding path program 12 times [2020-09-25 00:53:15,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:15,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192874275] [2020-09-25 00:53:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:18,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2685 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:53:18,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 00:53:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:18,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:18,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:18,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:18,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:18,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:18,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:18,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:18,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:18,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:18,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 00:53:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:18,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:19,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:19,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:53:19,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:19,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 00:53:19,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-25 00:53:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:53:19,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:19,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:19,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:19,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:53:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:19,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:19,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:53:20,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 00:53:20,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-25 00:53:20,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:53:20,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:20,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:53:20,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 00:53:20,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-25 00:53:20,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:53:20,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:20,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:20,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-25 00:53:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:53:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:20,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:20,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:53:20,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 00:53:20,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:53:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:53:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:20,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:20,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:53:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 00:53:20,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:53:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:53:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:20,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:20,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:20,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:53:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:53:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:53:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:53:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:21,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:21,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:21,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:53:21,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:21,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:53:21,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:53:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:21,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:53:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:21,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:21,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:21,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:53:21,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:53:21,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:53:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:53:21,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:21,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:21,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:53:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:53:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:53:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:53:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:21,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:53:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 57 proven. 372 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-09-25 00:53:21,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192874275] [2020-09-25 00:53:21,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:21,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-09-25 00:53:21,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971054169] [2020-09-25 00:53:21,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-25 00:53:21,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:21,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-25 00:53:21,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=929, Unknown=0, NotChecked=0, Total=992 [2020-09-25 00:53:21,600 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 32 states.