/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 13:59:48,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 13:59:48,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 13:59:48,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 13:59:48,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 13:59:48,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 13:59:48,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 13:59:48,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 13:59:48,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 13:59:48,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 13:59:48,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 13:59:48,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 13:59:48,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 13:59:48,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 13:59:48,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 13:59:48,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 13:59:48,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 13:59:48,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 13:59:48,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 13:59:48,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 13:59:48,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 13:59:48,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 13:59:48,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 13:59:48,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 13:59:48,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 13:59:48,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 13:59:48,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 13:59:48,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 13:59:48,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 13:59:48,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 13:59:48,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 13:59:48,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 13:59:48,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 13:59:48,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 13:59:48,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 13:59:48,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 13:59:48,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 13:59:48,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 13:59:48,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 13:59:48,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 13:59:48,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 13:59:48,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 13:59:48,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 13:59:48,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 13:59:48,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 13:59:48,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 13:59:48,653 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 13:59:48,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 13:59:48,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 13:59:48,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 13:59:48,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 13:59:48,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 13:59:48,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 13:59:48,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 13:59:48,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 13:59:48,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 13:59:48,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 13:59:48,657 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 13:59:48,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 13:59:48,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 13:59:48,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 13:59:48,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 13:59:48,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 13:59:48,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:59:48,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 13:59:48,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 13:59:48,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 13:59:48,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 13:59:48,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 13:59:48,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 13:59:48,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 13:59:48,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 13:59:49,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 13:59:49,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 13:59:49,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 13:59:49,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 13:59:49,151 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 13:59:49,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2020-10-27 13:59:49,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4163d0ea/8a3f2e69a32245d68d2e413051cd9b44/FLAGb9239b391 [2020-10-27 13:59:49,905 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 13:59:49,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_tripl_access_init_const.c [2020-10-27 13:59:49,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4163d0ea/8a3f2e69a32245d68d2e413051cd9b44/FLAGb9239b391 [2020-10-27 13:59:50,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4163d0ea/8a3f2e69a32245d68d2e413051cd9b44 [2020-10-27 13:59:50,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 13:59:50,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 13:59:50,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 13:59:50,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 13:59:50,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 13:59:50,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f66b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50, skipping insertion in model container [2020-10-27 13:59:50,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 13:59:50,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 13:59:50,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:59:50,573 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 13:59:50,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:59:50,615 INFO L208 MainTranslator]: Completed translation [2020-10-27 13:59:50,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50 WrapperNode [2020-10-27 13:59:50,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 13:59:50,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 13:59:50,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 13:59:50,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 13:59:50,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... [2020-10-27 13:59:50,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 13:59:50,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 13:59:50,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 13:59:50,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 13:59:50,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:59:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 13:59:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 13:59:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 13:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 13:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 13:59:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 13:59:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 13:59:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 13:59:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 13:59:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 13:59:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 13:59:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 13:59:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 13:59:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 13:59:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 13:59:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 13:59:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 13:59:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 13:59:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 13:59:51,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 13:59:51,326 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-27 13:59:51,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:59:51 BoogieIcfgContainer [2020-10-27 13:59:51,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 13:59:51,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 13:59:51,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 13:59:51,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 13:59:51,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:59:50" (1/3) ... [2020-10-27 13:59:51,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc0857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:59:51, skipping insertion in model container [2020-10-27 13:59:51,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:59:50" (2/3) ... [2020-10-27 13:59:51,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc0857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:59:51, skipping insertion in model container [2020-10-27 13:59:51,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:59:51" (3/3) ... [2020-10-27 13:59:51,344 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tripl_access_init_const.c [2020-10-27 13:59:51,360 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 13:59:51,367 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 13:59:51,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 13:59:51,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 13:59:51,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 13:59:51,431 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 13:59:51,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 13:59:51,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 13:59:51,432 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 13:59:51,432 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 13:59:51,432 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 13:59:51,462 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-27 13:59:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 13:59:51,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:51,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:51,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:51,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1723569169, now seen corresponding path program 1 times [2020-10-27 13:59:51,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:51,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067034250] [2020-10-27 13:59:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:51,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:51,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 13:59:51,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:51,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-27 13:59:51,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:51,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:59:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:51,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 13:59:51,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 13:59:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:52,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:52,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:52,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 13:59:52,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 13:59:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 13:59:52,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067034250] [2020-10-27 13:59:52,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 13:59:52,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 13:59:52,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232154069] [2020-10-27 13:59:52,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 13:59:52,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:52,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 13:59:52,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 13:59:52,202 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-10-27 13:59:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:52,375 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-10-27 13:59:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 13:59:52,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-27 13:59:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:52,388 INFO L225 Difference]: With dead ends: 47 [2020-10-27 13:59:52,388 INFO L226 Difference]: Without dead ends: 22 [2020-10-27 13:59:52,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 13:59:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-27 13:59:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-27 13:59:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-27 13:59:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-27 13:59:52,438 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2020-10-27 13:59:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:52,439 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-27 13:59:52,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 13:59:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-27 13:59:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 13:59:52,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:52,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:52,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 13:59:52,441 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:52,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1613601485, now seen corresponding path program 1 times [2020-10-27 13:59:52,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:52,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117309371] [2020-10-27 13:59:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:52,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:52,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 13:59:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-27 13:59:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 13:59:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:59:53,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:53,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:53,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:53,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:53,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:59:53,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:59:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 13:59:53,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117309371] [2020-10-27 13:59:53,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:53,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 13:59:53,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143304464] [2020-10-27 13:59:53,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 13:59:53,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:53,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 13:59:53,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-27 13:59:53,457 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-27 13:59:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:53,978 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-27 13:59:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 13:59:53,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-10-27 13:59:53,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:53,981 INFO L225 Difference]: With dead ends: 33 [2020-10-27 13:59:53,981 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 13:59:53,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 13:59:53,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 13:59:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-27 13:59:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-27 13:59:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-27 13:59:53,994 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2020-10-27 13:59:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:53,994 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-27 13:59:53,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 13:59:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-27 13:59:53,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 13:59:53,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:53,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:53,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 13:59:53,996 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:53,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:53,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1182044057, now seen corresponding path program 1 times [2020-10-27 13:59:53,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:53,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073267758] [2020-10-27 13:59:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:54,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 13:59:54,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-10-27 13:59:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:59:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:54,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 13:59:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:54,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:54,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:54,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:54,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:54,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:59:54,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:54,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:54,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 13:59:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:54,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:54,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:54,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:54,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:59:54,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:59:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:59:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 13:59:54,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073267758] [2020-10-27 13:59:54,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:54,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 13:59:54,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7034355] [2020-10-27 13:59:54,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 13:59:54,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:54,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 13:59:54,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 13:59:54,818 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-27 13:59:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:55,369 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-10-27 13:59:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 13:59:55,370 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-27 13:59:55,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:55,372 INFO L225 Difference]: With dead ends: 44 [2020-10-27 13:59:55,372 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 13:59:55,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-27 13:59:55,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 13:59:55,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2020-10-27 13:59:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 13:59:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 13:59:55,388 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2020-10-27 13:59:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:55,388 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 13:59:55,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 13:59:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 13:59:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 13:59:55,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:55,390 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:55,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 13:59:55,390 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:55,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:55,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2022765567, now seen corresponding path program 2 times [2020-10-27 13:59:55,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:55,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989510856] [2020-10-27 13:59:55,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 13:59:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-27 13:59:55,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 13:59:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 13:59:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:56,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:56,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:56,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:56,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:59:56,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-27 13:59:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:56,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:56,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:56,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 13:59:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:56,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:56,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 13:59:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:56,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:56,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:56,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:56,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:59:56,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:56,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:56,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:56,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 13:59:56,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989510856] [2020-10-27 13:59:56,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:56,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 13:59:56,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954908761] [2020-10-27 13:59:56,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 13:59:56,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:56,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 13:59:56,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 13:59:56,130 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 5 states. [2020-10-27 13:59:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:56,259 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2020-10-27 13:59:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 13:59:56,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-27 13:59:56,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:56,265 INFO L225 Difference]: With dead ends: 64 [2020-10-27 13:59:56,265 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 13:59:56,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 13:59:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 13:59:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-27 13:59:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-27 13:59:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-27 13:59:56,287 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 32 [2020-10-27 13:59:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:56,288 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-27 13:59:56,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 13:59:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-27 13:59:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 13:59:56,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:56,294 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:56,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 13:59:56,295 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1117159585, now seen corresponding path program 3 times [2020-10-27 13:59:56,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:56,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401064456] [2020-10-27 13:59:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:56,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:57,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:57,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 13:59:57,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:57,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-27 13:59:57,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:59:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 13:59:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:57,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:57,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:57,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:57,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:57,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:57,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 13:59:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:57,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:57,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:57,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 13:59:57,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:57,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 13:59:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:57,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:57,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:57,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 13:59:57,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 13:59:57,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401064456] [2020-10-27 13:59:57,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:57,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 13:59:57,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205017139] [2020-10-27 13:59:57,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 13:59:57,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:57,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 13:59:57,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 13:59:57,137 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 6 states. [2020-10-27 13:59:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:57,277 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2020-10-27 13:59:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 13:59:57,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-27 13:59:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:57,279 INFO L225 Difference]: With dead ends: 66 [2020-10-27 13:59:57,280 INFO L226 Difference]: Without dead ends: 40 [2020-10-27 13:59:57,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 13:59:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-27 13:59:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-10-27 13:59:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-27 13:59:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-27 13:59:57,289 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2020-10-27 13:59:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:57,289 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-27 13:59:57,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 13:59:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-27 13:59:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-27 13:59:57,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:57,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:57,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 13:59:57,291 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1586795325, now seen corresponding path program 4 times [2020-10-27 13:59:57,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:57,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053019023] [2020-10-27 13:59:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:57,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:57,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:58,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:58,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 13:59:58,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-10-27 13:59:58,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:59:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:58,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:59:58,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:58,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:58,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:59:58,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:58,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 13:59:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:58,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:58,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:58,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 13:59:58,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 13:59:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:58,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:58,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:58,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:58,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:58,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 13:59:58,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:58,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:58,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:58,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 13:59:58,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053019023] [2020-10-27 13:59:58,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:58,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 13:59:58,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821095848] [2020-10-27 13:59:58,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 13:59:58,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:58,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 13:59:58,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 13:59:58,490 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 7 states. [2020-10-27 13:59:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:59:58,666 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-10-27 13:59:58,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 13:59:58,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-27 13:59:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:59:58,668 INFO L225 Difference]: With dead ends: 68 [2020-10-27 13:59:58,669 INFO L226 Difference]: Without dead ends: 42 [2020-10-27 13:59:58,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 13:59:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-27 13:59:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-27 13:59:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 13:59:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 13:59:58,689 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 36 [2020-10-27 13:59:58,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:59:58,690 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 13:59:58,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 13:59:58,691 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 13:59:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-27 13:59:58,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:59:58,692 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 13:59:58,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 13:59:58,693 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:59:58,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:59:58,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1632249755, now seen corresponding path program 5 times [2020-10-27 13:59:58,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:59:58,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926204968] [2020-10-27 13:59:58,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:59:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:58,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:58,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:59,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:59,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 13:59:59,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:59:59,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1082 [2020-10-27 13:59:59,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:59:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 13:59:59,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 13:59:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:59:59,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:59:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:59,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:59,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:59:59,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:59:59,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:59:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:59,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:59,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-27 13:59:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:59,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:59,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:59,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:59,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 13:59:59,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:59,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:59:59,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 13:59:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:59:59,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:59:59,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:59:59,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:59:59,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:59:59,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 13:59:59,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 13:59:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:59:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 13:59:59,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:59:59,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:59:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 13:59:59,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926204968] [2020-10-27 13:59:59,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:59:59,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 13:59:59,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222206953] [2020-10-27 13:59:59,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 13:59:59,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:59:59,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 13:59:59,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 13:59:59,991 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2020-10-27 14:00:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:00,191 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-10-27 14:00:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 14:00:00,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-10-27 14:00:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:00,194 INFO L225 Difference]: With dead ends: 70 [2020-10-27 14:00:00,194 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 14:00:00,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 14:00:00,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 14:00:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2020-10-27 14:00:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-27 14:00:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-27 14:00:00,212 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 38 [2020-10-27 14:00:00,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:00,214 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-27 14:00:00,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 14:00:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-27 14:00:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 14:00:00,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:00,221 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:00,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 14:00:00,221 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:00,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:00,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1930683271, now seen corresponding path program 6 times [2020-10-27 14:00:00,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:00,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158030244] [2020-10-27 14:00:00,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:00,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:01,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-27 14:00:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 14:00:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:01,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:01,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:01,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:01,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:01,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 14:00:01,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:01,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:01,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 14:00:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:01,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:01,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:01,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:01,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:01,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 14:00:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:01,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:02,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:02,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:02,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:02,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:02,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:02,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 14:00:02,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158030244] [2020-10-27 14:00:02,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:02,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 14:00:02,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476665898] [2020-10-27 14:00:02,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 14:00:02,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:02,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 14:00:02,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-27 14:00:02,014 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-10-27 14:00:02,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:02,733 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-27 14:00:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 14:00:02,734 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-27 14:00:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:02,736 INFO L225 Difference]: With dead ends: 56 [2020-10-27 14:00:02,736 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 14:00:02,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-27 14:00:02,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 14:00:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-10-27 14:00:02,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 14:00:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-27 14:00:02,746 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 40 [2020-10-27 14:00:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:02,747 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-27 14:00:02,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 14:00:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-27 14:00:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 14:00:02,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:02,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:02,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 14:00:02,749 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1647543827, now seen corresponding path program 7 times [2020-10-27 14:00:02,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:02,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416314971] [2020-10-27 14:00:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:02,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:04,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 14:00:04,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1583 [2020-10-27 14:00:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 14:00:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:04,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:04,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:04,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:04,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:04,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:04,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:00:04,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:04,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:04,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 14:00:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:04,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:04,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:04,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:04,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:04,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:00:04,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:04,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:04,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:04,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 14:00:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:04,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:04,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:04,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:04,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:04,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:04,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:04,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:04,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:00:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:04,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:04,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:04,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:04,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 14:00:04,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416314971] [2020-10-27 14:00:04,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:04,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 14:00:04,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908469348] [2020-10-27 14:00:04,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 14:00:04,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:04,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 14:00:04,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-27 14:00:04,716 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 13 states. [2020-10-27 14:00:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:05,628 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-27 14:00:05,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 14:00:05,629 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-10-27 14:00:05,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:05,630 INFO L225 Difference]: With dead ends: 64 [2020-10-27 14:00:05,631 INFO L226 Difference]: Without dead ends: 61 [2020-10-27 14:00:05,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-27 14:00:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-27 14:00:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-10-27 14:00:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 14:00:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-27 14:00:05,642 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 48 [2020-10-27 14:00:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:05,642 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-27 14:00:05,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 14:00:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-27 14:00:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 14:00:05,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:05,644 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:05,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 14:00:05,644 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:05,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1127003565, now seen corresponding path program 8 times [2020-10-27 14:00:05,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:05,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019266419] [2020-10-27 14:00:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:05,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:05,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 14:00:07,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-10-27 14:00:07,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 14:00:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 14:00:07,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:07,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:07,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:07,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 14:00:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:07,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:07,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:07,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:07,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 14:00:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:07,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:07,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:07,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:07,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:07,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:00:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:07,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:07,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:00:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:07,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:07,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:07,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:07,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:07,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-27 14:00:07,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019266419] [2020-10-27 14:00:07,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:07,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 14:00:07,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91376931] [2020-10-27 14:00:07,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 14:00:07,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:07,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 14:00:07,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-27 14:00:07,350 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 9 states. [2020-10-27 14:00:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:07,503 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2020-10-27 14:00:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 14:00:07,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-27 14:00:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:07,505 INFO L225 Difference]: With dead ends: 104 [2020-10-27 14:00:07,505 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 14:00:07,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-27 14:00:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 14:00:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-27 14:00:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-27 14:00:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-27 14:00:07,516 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 56 [2020-10-27 14:00:07,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:07,516 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-27 14:00:07,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 14:00:07,516 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-27 14:00:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 14:00:07,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:07,518 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:07,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 14:00:07,518 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:07,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:07,519 INFO L82 PathProgramCache]: Analyzing trace with hash 411406581, now seen corresponding path program 9 times [2020-10-27 14:00:07,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:07,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774088047] [2020-10-27 14:00:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:07,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:09,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:09,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-27 14:00:09,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2427 [2020-10-27 14:00:09,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:00:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 14:00:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:10,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:10,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:10,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:10,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:10,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:00:10,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:10,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:10,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:10,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:10,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:10,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:10,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:10,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:10,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:10,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:10,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:10,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:10,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:10,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:10,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:10,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:10,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:10,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:10,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:10,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:10,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:10,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:10,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:10,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-27 14:00:10,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774088047] [2020-10-27 14:00:10,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:10,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 14:00:10,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539886047] [2020-10-27 14:00:10,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 14:00:10,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:10,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 14:00:10,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:00:10,423 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 14 states. [2020-10-27 14:00:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:11,800 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-10-27 14:00:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 14:00:11,803 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2020-10-27 14:00:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:11,806 INFO L225 Difference]: With dead ends: 75 [2020-10-27 14:00:11,806 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 14:00:11,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2020-10-27 14:00:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 14:00:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2020-10-27 14:00:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 14:00:11,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-27 14:00:11,830 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 58 [2020-10-27 14:00:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:11,833 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-27 14:00:11,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 14:00:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-27 14:00:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 14:00:11,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:11,835 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:11,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 14:00:11,837 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:11,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:11,838 INFO L82 PathProgramCache]: Analyzing trace with hash 917035355, now seen corresponding path program 10 times [2020-10-27 14:00:11,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:11,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001272584] [2020-10-27 14:00:11,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:12,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-27 14:00:14,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2456 [2020-10-27 14:00:14,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 14:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 14:00:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:14,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:14,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:14,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:14,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:14,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:00:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:14,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-27 14:00:14,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001272584] [2020-10-27 14:00:14,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:14,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:00:14,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581544228] [2020-10-27 14:00:14,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:00:14,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:14,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:00:14,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:00:14,754 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 15 states. [2020-10-27 14:00:16,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:16,211 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2020-10-27 14:00:16,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 14:00:16,212 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-10-27 14:00:16,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:16,217 INFO L225 Difference]: With dead ends: 83 [2020-10-27 14:00:16,217 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 14:00:16,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2020-10-27 14:00:16,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 14:00:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-27 14:00:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 14:00:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-27 14:00:16,238 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2020-10-27 14:00:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:16,238 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-27 14:00:16,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:00:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-27 14:00:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-27 14:00:16,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:16,240 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:16,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 14:00:16,240 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:16,241 INFO L82 PathProgramCache]: Analyzing trace with hash -733455423, now seen corresponding path program 11 times [2020-10-27 14:00:16,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:16,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739900160] [2020-10-27 14:00:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:16,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:18,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:18,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 14:00:18,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:18,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2666 [2020-10-27 14:00:18,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 14:00:18,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 14:00:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:19,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:19,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:19,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:00:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:19,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:00:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:19,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:19,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:19,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:19,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:19,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:19,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:19,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:19,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:19,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:19,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 12 proven. 96 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 14:00:19,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739900160] [2020-10-27 14:00:19,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:19,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 14:00:19,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023986823] [2020-10-27 14:00:19,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 14:00:19,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:19,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 14:00:19,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-27 14:00:19,511 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 17 states. [2020-10-27 14:00:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:21,622 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2020-10-27 14:00:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 14:00:21,623 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2020-10-27 14:00:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:21,625 INFO L225 Difference]: With dead ends: 100 [2020-10-27 14:00:21,625 INFO L226 Difference]: Without dead ends: 97 [2020-10-27 14:00:21,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 14:00:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-27 14:00:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2020-10-27 14:00:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-27 14:00:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-10-27 14:00:21,655 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 74 [2020-10-27 14:00:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:21,656 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-10-27 14:00:21,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 14:00:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-10-27 14:00:21,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-27 14:00:21,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:21,660 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:21,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 14:00:21,661 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:21,661 INFO L82 PathProgramCache]: Analyzing trace with hash 915019815, now seen corresponding path program 12 times [2020-10-27 14:00:21,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:21,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017220606] [2020-10-27 14:00:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:21,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:21,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:24,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:24,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 14:00:24,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:24,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2885 [2020-10-27 14:00:24,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:24,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 14:00:24,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:24,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-27 14:00:24,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:25,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:00:25,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:25,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:25,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:00:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:25,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:00:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:25,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:00:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:25,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:25,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:25,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:25,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 14 proven. 122 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-27 14:00:25,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017220606] [2020-10-27 14:00:25,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:25,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 14:00:25,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600758965] [2020-10-27 14:00:25,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 14:00:25,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:25,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 14:00:25,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:00:25,157 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 18 states. [2020-10-27 14:00:27,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:27,419 INFO L93 Difference]: Finished difference Result 108 states and 112 transitions. [2020-10-27 14:00:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 14:00:27,420 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 82 [2020-10-27 14:00:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:27,423 INFO L225 Difference]: With dead ends: 108 [2020-10-27 14:00:27,423 INFO L226 Difference]: Without dead ends: 105 [2020-10-27 14:00:27,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 14:00:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-27 14:00:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 93. [2020-10-27 14:00:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-27 14:00:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-10-27 14:00:27,436 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 82 [2020-10-27 14:00:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:27,437 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-10-27 14:00:27,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 14:00:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-10-27 14:00:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-27 14:00:27,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:27,441 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:27,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 14:00:27,441 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:27,442 INFO L82 PathProgramCache]: Analyzing trace with hash 479465101, now seen corresponding path program 13 times [2020-10-27 14:00:27,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:27,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811671265] [2020-10-27 14:00:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:27,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:30,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:30,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 14:00:30,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2856 [2020-10-27 14:00:30,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 14:00:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 14:00:30,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:31,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:00:31,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:31,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:31,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:00:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:31,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:00:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:31,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:00:31,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:00:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:00:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:31,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:31,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:31,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:31,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:31,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:31,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 16 proven. 152 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-27 14:00:31,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811671265] [2020-10-27 14:00:31,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:31,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 14:00:31,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887746285] [2020-10-27 14:00:31,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 14:00:31,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:31,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 14:00:31,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-27 14:00:31,137 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 19 states. [2020-10-27 14:00:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:33,601 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2020-10-27 14:00:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 14:00:33,602 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 90 [2020-10-27 14:00:33,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:33,604 INFO L225 Difference]: With dead ends: 116 [2020-10-27 14:00:33,605 INFO L226 Difference]: Without dead ends: 113 [2020-10-27 14:00:33,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=206, Invalid=1434, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 14:00:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-27 14:00:33,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2020-10-27 14:00:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-27 14:00:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2020-10-27 14:00:33,618 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 90 [2020-10-27 14:00:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:33,619 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2020-10-27 14:00:33,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 14:00:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2020-10-27 14:00:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 14:00:33,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:33,622 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:33,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 14:00:33,622 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:33,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1081327885, now seen corresponding path program 14 times [2020-10-27 14:00:33,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:33,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839194828] [2020-10-27 14:00:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:33,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:34,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 14:00:35,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2133 [2020-10-27 14:00:35,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:00:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 14:00:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:35,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:35,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 14:00:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:00:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:35,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:35,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:35,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:00:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:35,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:00:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:00:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:35,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:35,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:35,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:35,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:35,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:00:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:36,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:36,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:36,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:36,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 14:00:36,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:36,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:36,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:36,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:36,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:00:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:36,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:36,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:36,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:36,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:36,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:36,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:00:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:36,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:36,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:36,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:36,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:36,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:00:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:36,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:36,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:36,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:36,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-27 14:00:36,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839194828] [2020-10-27 14:00:36,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:36,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 14:00:36,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277496718] [2020-10-27 14:00:36,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 14:00:36,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:36,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 14:00:36,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-27 14:00:36,067 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand 10 states. [2020-10-27 14:00:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:36,220 INFO L93 Difference]: Finished difference Result 186 states and 188 transitions. [2020-10-27 14:00:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 14:00:36,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-27 14:00:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:36,223 INFO L225 Difference]: With dead ends: 186 [2020-10-27 14:00:36,223 INFO L226 Difference]: Without dead ends: 104 [2020-10-27 14:00:36,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-27 14:00:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-27 14:00:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2020-10-27 14:00:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-27 14:00:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2020-10-27 14:00:36,240 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 98 [2020-10-27 14:00:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:36,240 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2020-10-27 14:00:36,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 14:00:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2020-10-27 14:00:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 14:00:36,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:36,242 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:36,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 14:00:36,242 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:36,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1416567573, now seen corresponding path program 15 times [2020-10-27 14:00:36,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:36,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326130921] [2020-10-27 14:00:36,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:36,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:36,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4069 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 14:00:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 14:00:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:40,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 14:00:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 14:00:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:40,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 14:00:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:40,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:40,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 14:00:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:41,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:41,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:41,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:00:41,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:41,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:41,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:41,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:00:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:41,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:41,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:41,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:41,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:41,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:00:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:41,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:41,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:41,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:41,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:41,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:41,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:00:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:41,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:41,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:41,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:00:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:41,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:41,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:00:41,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:00:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:00:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 18 proven. 199 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-10-27 14:00:41,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326130921] [2020-10-27 14:00:41,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:41,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 14:00:41,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289210237] [2020-10-27 14:00:41,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 14:00:41,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:41,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 14:00:41,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:00:41,079 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 21 states. [2020-10-27 14:00:41,798 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-27 14:00:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:44,406 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2020-10-27 14:00:44,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-27 14:00:44,407 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 100 [2020-10-27 14:00:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:44,412 INFO L225 Difference]: With dead ends: 132 [2020-10-27 14:00:44,412 INFO L226 Difference]: Without dead ends: 129 [2020-10-27 14:00:44,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=288, Invalid=2064, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 14:00:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-27 14:00:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 111. [2020-10-27 14:00:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-27 14:00:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2020-10-27 14:00:44,427 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 100 [2020-10-27 14:00:44,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:44,429 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2020-10-27 14:00:44,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 14:00:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2020-10-27 14:00:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 14:00:44,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:44,433 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:44,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 14:00:44,434 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:44,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:44,435 INFO L82 PathProgramCache]: Analyzing trace with hash -436845701, now seen corresponding path program 16 times [2020-10-27 14:00:44,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:44,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800489242] [2020-10-27 14:00:44,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 14:00:47,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3178 [2020-10-27 14:00:47,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 14:00:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 14:00:47,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 14:00:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:00:47,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 14:00:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 14:00:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 14:00:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 14:00:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:00:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:00:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:00:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:00:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:00:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:47,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:47,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:47,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:47,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:47,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:47,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 20 proven. 49 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:00:47,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800489242] [2020-10-27 14:00:47,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:47,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 14:00:47,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825262664] [2020-10-27 14:00:47,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 14:00:47,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:47,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 14:00:47,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-27 14:00:47,897 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand 11 states. [2020-10-27 14:00:48,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:48,113 INFO L93 Difference]: Finished difference Result 204 states and 206 transitions. [2020-10-27 14:00:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 14:00:48,114 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-10-27 14:00:48,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:48,115 INFO L225 Difference]: With dead ends: 204 [2020-10-27 14:00:48,115 INFO L226 Difference]: Without dead ends: 114 [2020-10-27 14:00:48,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-27 14:00:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-27 14:00:48,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2020-10-27 14:00:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-27 14:00:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 114 transitions. [2020-10-27 14:00:48,130 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 114 transitions. Word has length 108 [2020-10-27 14:00:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:48,130 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 114 transitions. [2020-10-27 14:00:48,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 14:00:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 114 transitions. [2020-10-27 14:00:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-27 14:00:48,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:48,134 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:48,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 14:00:48,134 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:48,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1739203299, now seen corresponding path program 17 times [2020-10-27 14:00:48,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:48,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649949368] [2020-10-27 14:00:48,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:48,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4166 [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 14:00:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 14:00:52,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:52,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 14:00:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 14:00:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 14:00:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 14:00:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 14:00:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 14:00:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 14:00:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 14:00:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 14:00:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 14:00:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:52,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:52,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:52,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 20 proven. 64 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:00:52,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649949368] [2020-10-27 14:00:52,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:52,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 14:00:52,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677613406] [2020-10-27 14:00:52,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 14:00:52,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:52,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 14:00:52,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:00:52,603 INFO L87 Difference]: Start difference. First operand 113 states and 114 transitions. Second operand 12 states. [2020-10-27 14:00:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:52,746 INFO L93 Difference]: Finished difference Result 206 states and 208 transitions. [2020-10-27 14:00:52,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 14:00:52,747 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2020-10-27 14:00:52,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:52,749 INFO L225 Difference]: With dead ends: 206 [2020-10-27 14:00:52,749 INFO L226 Difference]: Without dead ends: 116 [2020-10-27 14:00:52,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-27 14:00:52,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-27 14:00:52,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2020-10-27 14:00:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-27 14:00:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2020-10-27 14:00:52,763 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 110 [2020-10-27 14:00:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:52,763 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2020-10-27 14:00:52,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 14:00:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2020-10-27 14:00:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-27 14:00:52,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:52,765 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:52,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 14:00:52,765 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash 825595455, now seen corresponding path program 18 times [2020-10-27 14:00:52,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:52,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8616089] [2020-10-27 14:00:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 14:00:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:00:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 14:00:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:00:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:00:58,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:58,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:00:58,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 14:00:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:00:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:00:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:00:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:00:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:00:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:00:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:00:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:00:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:00:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:00:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:00:58,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:00:58,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:00:58,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:00:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 20 proven. 81 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:00:58,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8616089] [2020-10-27 14:00:58,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:00:58,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 14:00:58,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917319626] [2020-10-27 14:00:58,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 14:00:58,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:00:58,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 14:00:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-27 14:00:58,096 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand 13 states. [2020-10-27 14:00:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:00:58,335 INFO L93 Difference]: Finished difference Result 208 states and 210 transitions. [2020-10-27 14:00:58,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 14:00:58,336 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112 [2020-10-27 14:00:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:00:58,337 INFO L225 Difference]: With dead ends: 208 [2020-10-27 14:00:58,338 INFO L226 Difference]: Without dead ends: 118 [2020-10-27 14:00:58,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-27 14:00:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-27 14:00:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2020-10-27 14:00:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-27 14:00:58,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2020-10-27 14:00:58,351 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 112 [2020-10-27 14:00:58,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:00:58,351 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2020-10-27 14:00:58,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 14:00:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2020-10-27 14:00:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 14:00:58,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:00:58,353 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:00:58,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 14:00:58,353 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:00:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:00:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash 285970145, now seen corresponding path program 19 times [2020-10-27 14:00:58,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:00:58,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808174989] [2020-10-27 14:00:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:00:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:00:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:00:58,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 14:01:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:03,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:03,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:03,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 14:01:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:01:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:01:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:01:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:01:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:01:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:03,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:01:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:01:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:01:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:01:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:03,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:03,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:03,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:03,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 20 proven. 100 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:01:03,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808174989] [2020-10-27 14:01:03,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:03,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 14:01:03,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451063888] [2020-10-27 14:01:03,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 14:01:03,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:03,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 14:01:03,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:01:03,728 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand 14 states. [2020-10-27 14:01:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:03,941 INFO L93 Difference]: Finished difference Result 210 states and 212 transitions. [2020-10-27 14:01:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 14:01:03,942 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2020-10-27 14:01:03,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:03,944 INFO L225 Difference]: With dead ends: 210 [2020-10-27 14:01:03,944 INFO L226 Difference]: Without dead ends: 120 [2020-10-27 14:01:03,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:01:03,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-27 14:01:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2020-10-27 14:01:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-27 14:01:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2020-10-27 14:01:03,961 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 114 [2020-10-27 14:01:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:03,964 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2020-10-27 14:01:03,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 14:01:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2020-10-27 14:01:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 14:01:03,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:03,966 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:03,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 14:01:03,966 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:03,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:03,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1397090051, now seen corresponding path program 20 times [2020-10-27 14:01:03,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:03,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761101239] [2020-10-27 14:01:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:04,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 14:01:09,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-27 14:01:09,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 14:01:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 14:01:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:09,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 14:01:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 14:01:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 14:01:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 14:01:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:01:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:01:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:01:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:01:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:01:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 14:01:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:09,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:09,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:09,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:09,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:09,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:09,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 20 proven. 121 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:01:09,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761101239] [2020-10-27 14:01:09,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:09,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:01:09,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637657229] [2020-10-27 14:01:09,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:01:09,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:09,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:01:09,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:01:09,439 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand 15 states. [2020-10-27 14:01:09,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:09,608 INFO L93 Difference]: Finished difference Result 212 states and 214 transitions. [2020-10-27 14:01:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 14:01:09,611 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2020-10-27 14:01:09,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:09,614 INFO L225 Difference]: With dead ends: 212 [2020-10-27 14:01:09,614 INFO L226 Difference]: Without dead ends: 122 [2020-10-27 14:01:09,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:01:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-27 14:01:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2020-10-27 14:01:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-27 14:01:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2020-10-27 14:01:09,632 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 116 [2020-10-27 14:01:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:09,633 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2020-10-27 14:01:09,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:01:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2020-10-27 14:01:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 14:01:09,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:09,634 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:09,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 14:01:09,635 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -263536987, now seen corresponding path program 21 times [2020-10-27 14:01:09,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:09,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556352886] [2020-10-27 14:01:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:14,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:01:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:14,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 14:01:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:15,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 14:01:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 14:01:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 14:01:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 14:01:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 14:01:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 14:01:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 14:01:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 14:01:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 14:01:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 14:01:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:15,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:01:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 20 proven. 144 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-27 14:01:15,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556352886] [2020-10-27 14:01:15,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:15,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 14:01:15,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959753748] [2020-10-27 14:01:15,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 14:01:15,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:15,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 14:01:15,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-27 14:01:15,141 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand 16 states. [2020-10-27 14:01:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:15,427 INFO L93 Difference]: Finished difference Result 214 states and 216 transitions. [2020-10-27 14:01:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 14:01:15,429 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2020-10-27 14:01:15,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:15,431 INFO L225 Difference]: With dead ends: 214 [2020-10-27 14:01:15,431 INFO L226 Difference]: Without dead ends: 124 [2020-10-27 14:01:15,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-27 14:01:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-27 14:01:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2020-10-27 14:01:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-27 14:01:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2020-10-27 14:01:15,450 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 118 [2020-10-27 14:01:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:15,450 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2020-10-27 14:01:15,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 14:01:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2020-10-27 14:01:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 14:01:15,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:15,452 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:15,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 14:01:15,452 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:15,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1601713607, now seen corresponding path program 22 times [2020-10-27 14:01:15,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:15,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944059406] [2020-10-27 14:01:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:15,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:16,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:20,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:20,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 14:01:20,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 14:01:20,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 14:01:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 14:01:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:01:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:21,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:01:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:01:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:01:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:01:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:01:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:01:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:01:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:01:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:01:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:21,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:21,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:21,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:21,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 20 proven. 279 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-27 14:01:21,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944059406] [2020-10-27 14:01:21,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:21,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 14:01:21,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531545283] [2020-10-27 14:01:21,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 14:01:21,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:21,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 14:01:21,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-27 14:01:21,376 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand 22 states. [2020-10-27 14:01:22,114 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-27 14:01:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:24,894 INFO L93 Difference]: Finished difference Result 136 states and 137 transitions. [2020-10-27 14:01:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 14:01:24,895 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-27 14:01:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:24,897 INFO L225 Difference]: With dead ends: 136 [2020-10-27 14:01:24,897 INFO L226 Difference]: Without dead ends: 133 [2020-10-27 14:01:24,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=297, Invalid=2253, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 14:01:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-27 14:01:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2020-10-27 14:01:24,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-27 14:01:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2020-10-27 14:01:24,912 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 120 [2020-10-27 14:01:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:24,912 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2020-10-27 14:01:24,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 14:01:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2020-10-27 14:01:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 14:01:24,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:24,914 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:24,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 14:01:24,914 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash -488993747, now seen corresponding path program 23 times [2020-10-27 14:01:24,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:24,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524714904] [2020-10-27 14:01:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:24,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:29,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-27 14:01:29,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:30,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:30,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:01:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:01:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:01:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:01:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:01:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:01:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:01:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:01:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:01:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:01:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:01:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:30,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:30,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:30,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:30,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 22 proven. 321 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2020-10-27 14:01:30,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524714904] [2020-10-27 14:01:30,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:30,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 14:01:30,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751394788] [2020-10-27 14:01:30,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 14:01:30,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 14:01:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-27 14:01:30,917 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand 23 states. [2020-10-27 14:01:31,644 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-27 14:01:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:34,602 INFO L93 Difference]: Finished difference Result 144 states and 145 transitions. [2020-10-27 14:01:34,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 14:01:34,603 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 128 [2020-10-27 14:01:34,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:34,605 INFO L225 Difference]: With dead ends: 144 [2020-10-27 14:01:34,605 INFO L226 Difference]: Without dead ends: 141 [2020-10-27 14:01:34,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=305, Invalid=2451, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 14:01:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-27 14:01:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2020-10-27 14:01:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-27 14:01:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2020-10-27 14:01:34,621 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 128 [2020-10-27 14:01:34,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:34,621 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2020-10-27 14:01:34,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 14:01:34,622 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2020-10-27 14:01:34,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-27 14:01:34,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:34,623 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:34,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 14:01:34,624 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:34,624 INFO L82 PathProgramCache]: Analyzing trace with hash -188015469, now seen corresponding path program 24 times [2020-10-27 14:01:34,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:34,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030603070] [2020-10-27 14:01:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:34,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:39,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 14:01:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-27 14:01:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 14:01:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-27 14:01:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:01:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:01:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:01:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:01:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:01:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:01:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:01:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:01:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:01:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:01:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:01:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:40,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 14:01:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 24 proven. 385 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-27 14:01:40,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030603070] [2020-10-27 14:01:40,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:40,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 14:01:40,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651588679] [2020-10-27 14:01:40,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 14:01:40,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 14:01:40,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-27 14:01:40,742 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 25 states. [2020-10-27 14:01:41,766 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-27 14:01:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:45,446 INFO L93 Difference]: Finished difference Result 159 states and 162 transitions. [2020-10-27 14:01:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 14:01:45,448 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2020-10-27 14:01:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:45,449 INFO L225 Difference]: With dead ends: 159 [2020-10-27 14:01:45,450 INFO L226 Difference]: Without dead ends: 156 [2020-10-27 14:01:45,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=398, Invalid=3142, Unknown=0, NotChecked=0, Total=3540 [2020-10-27 14:01:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-27 14:01:45,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 147. [2020-10-27 14:01:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-27 14:01:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2020-10-27 14:01:45,477 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 136 [2020-10-27 14:01:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:45,478 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2020-10-27 14:01:45,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 14:01:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2020-10-27 14:01:45,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-27 14:01:45,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:45,486 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:45,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 14:01:45,486 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:45,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1469061383, now seen corresponding path program 25 times [2020-10-27 14:01:45,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:45,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618597109] [2020-10-27 14:01:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 14:01:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:01:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-27 14:01:50,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 14:01:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:01:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-27 14:01:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:01:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:01:51,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:01:51,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:01:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:01:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:01:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:01:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:01:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:01:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:01:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:01:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:01:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:01:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:01:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:01:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:01:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 14:01:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 14:01:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:01:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:01:51,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:01:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:01:51,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:01:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:01:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:01:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:01:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:01:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 26 proven. 435 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2020-10-27 14:01:51,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618597109] [2020-10-27 14:01:51,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:01:51,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 14:01:51,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422691504] [2020-10-27 14:01:51,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 14:01:51,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:01:51,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 14:01:51,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-10-27 14:01:51,718 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand 26 states. [2020-10-27 14:01:52,802 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-27 14:01:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:01:56,948 INFO L93 Difference]: Finished difference Result 167 states and 170 transitions. [2020-10-27 14:01:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-27 14:01:56,949 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 144 [2020-10-27 14:01:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:01:56,952 INFO L225 Difference]: With dead ends: 167 [2020-10-27 14:01:56,952 INFO L226 Difference]: Without dead ends: 164 [2020-10-27 14:01:56,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=407, Invalid=3375, Unknown=0, NotChecked=0, Total=3782 [2020-10-27 14:01:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-27 14:01:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2020-10-27 14:01:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 14:01:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2020-10-27 14:01:56,970 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 144 [2020-10-27 14:01:56,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:01:56,970 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2020-10-27 14:01:56,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 14:01:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2020-10-27 14:01:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 14:01:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:01:56,972 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:01:56,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 14:01:56,972 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:01:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:01:56,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1964053665, now seen corresponding path program 26 times [2020-10-27 14:01:56,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:01:56,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635491686] [2020-10-27 14:01:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:01:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:01:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:01:58,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 14:02:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:02:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-27 14:02:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:02:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:02:03,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:02:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:03,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:02:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:02:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:02:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:02:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:02:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:02:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:02:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:02:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:02:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:02:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 14:02:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 14:02:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 14:02:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:03,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:03,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:03,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:03,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:03,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:03,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 953 backedges. 28 proven. 489 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2020-10-27 14:02:03,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635491686] [2020-10-27 14:02:03,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:02:03,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 14:02:03,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390870976] [2020-10-27 14:02:03,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 14:02:03,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:02:03,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 14:02:03,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-27 14:02:03,186 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand 27 states. [2020-10-27 14:02:04,330 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-10-27 14:02:08,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:02:08,653 INFO L93 Difference]: Finished difference Result 175 states and 178 transitions. [2020-10-27 14:02:08,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 14:02:08,654 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 152 [2020-10-27 14:02:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:02:08,657 INFO L225 Difference]: With dead ends: 175 [2020-10-27 14:02:08,657 INFO L226 Difference]: Without dead ends: 172 [2020-10-27 14:02:08,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=412, Invalid=3494, Unknown=0, NotChecked=0, Total=3906 [2020-10-27 14:02:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-27 14:02:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 163. [2020-10-27 14:02:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-27 14:02:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 164 transitions. [2020-10-27 14:02:08,673 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 164 transitions. Word has length 152 [2020-10-27 14:02:08,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:02:08,674 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 164 transitions. [2020-10-27 14:02:08,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 14:02:08,674 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 164 transitions. [2020-10-27 14:02:08,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 14:02:08,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:02:08,675 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:02:08,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 14:02:08,676 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:02:08,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:02:08,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1553061435, now seen corresponding path program 27 times [2020-10-27 14:02:08,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:02:08,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096570619] [2020-10-27 14:02:08,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:02:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:08,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:13,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:13,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-10-27 14:02:13,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 14:02:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:02:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:02:14,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:02:14,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:14,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:02:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 14:02:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:02:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 14:02:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:02:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:14,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:02:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 14:02:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:02:14,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:02:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:02:14,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:02:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:02:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:02:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 14:02:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 14:02:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:02:14,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:14,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 14:02:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:02:14,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:02:14,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-27 14:02:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:14,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:14,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:14,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:14,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:02:14,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:14,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:02:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 30 proven. 169 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2020-10-27 14:02:14,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096570619] [2020-10-27 14:02:14,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:02:14,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 14:02:14,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258735140] [2020-10-27 14:02:14,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 14:02:14,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:02:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 14:02:14,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-27 14:02:14,405 INFO L87 Difference]: Start difference. First operand 163 states and 164 transitions. Second operand 17 states. [2020-10-27 14:02:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:02:14,716 INFO L93 Difference]: Finished difference Result 296 states and 298 transitions. [2020-10-27 14:02:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 14:02:14,717 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 160 [2020-10-27 14:02:14,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:02:14,721 INFO L225 Difference]: With dead ends: 296 [2020-10-27 14:02:14,721 INFO L226 Difference]: Without dead ends: 166 [2020-10-27 14:02:14,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-27 14:02:14,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-27 14:02:14,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2020-10-27 14:02:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-27 14:02:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2020-10-27 14:02:14,736 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 160 [2020-10-27 14:02:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:02:14,736 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2020-10-27 14:02:14,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 14:02:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2020-10-27 14:02:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-27 14:02:14,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:02:14,738 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:02:14,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 14:02:14,738 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:02:14,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:02:14,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1484286361, now seen corresponding path program 28 times [2020-10-27 14:02:14,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:02:14,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206426515] [2020-10-27 14:02:14,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:02:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:14,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:17,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:19,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-27 14:02:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:02:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:02:21,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:21,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:02:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:02:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:02:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:02:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:02:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:02:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:02:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:02:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:02:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 14:02:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 14:02:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 14:02:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 14:02:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:02:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 14:02:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:21,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:21,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:21,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 30 proven. 574 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-27 14:02:21,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206426515] [2020-10-27 14:02:21,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:02:21,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-27 14:02:21,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274953689] [2020-10-27 14:02:21,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-27 14:02:21,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:02:21,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-27 14:02:21,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-27 14:02:21,212 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand 29 states. [2020-10-27 14:02:22,772 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-27 14:02:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:02:28,092 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2020-10-27 14:02:28,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-27 14:02:28,093 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 162 [2020-10-27 14:02:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:02:28,096 INFO L225 Difference]: With dead ends: 191 [2020-10-27 14:02:28,096 INFO L226 Difference]: Without dead ends: 188 [2020-10-27 14:02:28,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=524, Invalid=4446, Unknown=0, NotChecked=0, Total=4970 [2020-10-27 14:02:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-27 14:02:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 173. [2020-10-27 14:02:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-27 14:02:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 174 transitions. [2020-10-27 14:02:28,117 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 174 transitions. Word has length 162 [2020-10-27 14:02:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:02:28,117 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 174 transitions. [2020-10-27 14:02:28,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-27 14:02:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 174 transitions. [2020-10-27 14:02:28,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-27 14:02:28,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:02:28,119 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:02:28,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 14:02:28,119 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:02:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:02:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash 5197005, now seen corresponding path program 29 times [2020-10-27 14:02:28,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:02:28,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170662954] [2020-10-27 14:02:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:02:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:28,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:33,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:33,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5169 [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:02:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 197 [2020-10-27 14:02:33,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 14:02:34,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:02:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:02:34,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:02:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:02:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:02:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:34,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:02:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:02:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:02:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:02:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:02:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:02:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 14:02:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 14:02:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 14:02:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 14:02:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:02:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 14:02:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-27 14:02:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:34,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:34,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:02:34,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 32 proven. 636 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-27 14:02:34,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170662954] [2020-10-27 14:02:34,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:02:34,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 14:02:34,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106761727] [2020-10-27 14:02:34,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 14:02:34,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:02:34,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 14:02:34,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2020-10-27 14:02:34,927 INFO L87 Difference]: Start difference. First operand 173 states and 174 transitions. Second operand 30 states. [2020-10-27 14:02:36,502 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-27 14:02:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:02:42,041 INFO L93 Difference]: Finished difference Result 199 states and 204 transitions. [2020-10-27 14:02:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-27 14:02:42,043 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 170 [2020-10-27 14:02:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:02:42,045 INFO L225 Difference]: With dead ends: 199 [2020-10-27 14:02:42,046 INFO L226 Difference]: Without dead ends: 196 [2020-10-27 14:02:42,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=530, Invalid=4582, Unknown=0, NotChecked=0, Total=5112 [2020-10-27 14:02:42,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-27 14:02:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2020-10-27 14:02:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 14:02:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 182 transitions. [2020-10-27 14:02:42,073 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 182 transitions. Word has length 170 [2020-10-27 14:02:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:02:42,073 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 182 transitions. [2020-10-27 14:02:42,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 14:02:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 182 transitions. [2020-10-27 14:02:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-27 14:02:42,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:02:42,077 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:02:42,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-27 14:02:42,078 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:02:42,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:02:42,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1548041523, now seen corresponding path program 30 times [2020-10-27 14:02:42,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:02:42,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999427377] [2020-10-27 14:02:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:02:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:45,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:47,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-27 14:02:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:02:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:02:48,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:02:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:02:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:02:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:02:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:02:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:02:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:02:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:02:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:02:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:02:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 14:02:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 14:02:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 14:02:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 14:02:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:02:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 14:02:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-27 14:02:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-27 14:02:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:48,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:02:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:02:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 34 proven. 702 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2020-10-27 14:02:48,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999427377] [2020-10-27 14:02:48,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:02:48,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 14:02:48,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194566012] [2020-10-27 14:02:48,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 14:02:48,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:02:48,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 14:02:48,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2020-10-27 14:02:48,752 INFO L87 Difference]: Start difference. First operand 181 states and 182 transitions. Second operand 31 states. [2020-10-27 14:02:50,473 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-27 14:02:56,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:02:56,594 INFO L93 Difference]: Finished difference Result 207 states and 212 transitions. [2020-10-27 14:02:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 14:02:56,595 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2020-10-27 14:02:56,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:02:56,597 INFO L225 Difference]: With dead ends: 207 [2020-10-27 14:02:56,597 INFO L226 Difference]: Without dead ends: 204 [2020-10-27 14:02:56,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=538, Invalid=4864, Unknown=0, NotChecked=0, Total=5402 [2020-10-27 14:02:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-27 14:02:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 189. [2020-10-27 14:02:56,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-27 14:02:56,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2020-10-27 14:02:56,621 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 178 [2020-10-27 14:02:56,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:02:56,622 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2020-10-27 14:02:56,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 14:02:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2020-10-27 14:02:56,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 14:02:56,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:02:56,623 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:02:56,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-27 14:02:56,623 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:02:56,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:02:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 781150105, now seen corresponding path program 31 times [2020-10-27 14:02:56,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:02:56,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690199943] [2020-10-27 14:02:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:02:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:02:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:02:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:01,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:01,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 14:03:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:03:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:03:02,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:03:02,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 14:03:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 14:03:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:03:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 14:03:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:03:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:03:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:03:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:03:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:03:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 14:03:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 14:03:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 14:03:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 14:03:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:03:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 14:03:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-27 14:03:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-27 14:03:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-27 14:03:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:02,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:02,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:02,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:02,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1492 backedges. 36 proven. 196 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2020-10-27 14:03:02,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690199943] [2020-10-27 14:03:02,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:03:02,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 14:03:02,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691835335] [2020-10-27 14:03:02,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 14:03:02,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:03:02,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 14:03:02,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:03:02,330 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand 18 states. [2020-10-27 14:03:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:03:02,723 INFO L93 Difference]: Finished difference Result 346 states and 348 transitions. [2020-10-27 14:03:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 14:03:02,724 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 186 [2020-10-27 14:03:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:03:02,726 INFO L225 Difference]: With dead ends: 346 [2020-10-27 14:03:02,726 INFO L226 Difference]: Without dead ends: 192 [2020-10-27 14:03:02,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-27 14:03:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-27 14:03:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2020-10-27 14:03:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-27 14:03:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 192 transitions. [2020-10-27 14:03:02,749 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 192 transitions. Word has length 186 [2020-10-27 14:03:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:03:02,749 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 192 transitions. [2020-10-27 14:03:02,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 14:03:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 192 transitions. [2020-10-27 14:03:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-27 14:03:02,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:03:02,751 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:03:02,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-27 14:03:02,752 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:03:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:03:02,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1304849851, now seen corresponding path program 32 times [2020-10-27 14:03:02,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:03:02,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501815216] [2020-10-27 14:03:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:03:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:02,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-27 14:03:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5118 [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-27 14:03:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:03:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:03:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 14:03:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 14:03:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 14:03:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:03:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:03:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:03:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:03:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:03:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 14:03:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 14:03:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-27 14:03:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 14:03:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-27 14:03:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 14:03:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-27 14:03:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-27 14:03:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-27 14:03:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-27 14:03:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:09,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:09,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:09,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 36 proven. 801 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-10-27 14:03:09,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501815216] [2020-10-27 14:03:09,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:03:09,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-27 14:03:09,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345230667] [2020-10-27 14:03:09,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-27 14:03:09,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:03:09,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-27 14:03:09,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 14:03:09,823 INFO L87 Difference]: Start difference. First operand 191 states and 192 transitions. Second operand 33 states. [2020-10-27 14:03:12,064 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-27 14:03:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:03:19,781 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-10-27 14:03:19,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-27 14:03:19,782 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 188 [2020-10-27 14:03:19,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:03:19,784 INFO L225 Difference]: With dead ends: 223 [2020-10-27 14:03:19,784 INFO L226 Difference]: Without dead ends: 220 [2020-10-27 14:03:19,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1167 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=666, Invalid=5976, Unknown=0, NotChecked=0, Total=6642 [2020-10-27 14:03:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-27 14:03:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 199. [2020-10-27 14:03:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-27 14:03:19,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2020-10-27 14:03:19,805 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 188 [2020-10-27 14:03:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:03:19,806 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2020-10-27 14:03:19,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-27 14:03:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2020-10-27 14:03:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-27 14:03:19,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:03:19,808 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:03:19,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-27 14:03:19,808 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:03:19,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:03:19,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1472491487, now seen corresponding path program 33 times [2020-10-27 14:03:19,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:03:19,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551651186] [2020-10-27 14:03:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:03:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-27 14:03:24,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5148 [2020-10-27 14:03:24,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 14:03:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:03:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 14:03:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:03:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:25,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 14:03:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 14:03:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 14:03:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:03:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:03:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:03:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:03:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:25,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:03:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 14:03:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 14:03:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-27 14:03:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 14:03:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-27 14:03:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 14:03:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-27 14:03:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-27 14:03:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-27 14:03:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-27 14:03:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-27 14:03:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:25,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:03:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 38 proven. 225 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2020-10-27 14:03:25,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551651186] [2020-10-27 14:03:25,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:03:25,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 14:03:25,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45369754] [2020-10-27 14:03:25,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 14:03:25,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:03:25,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 14:03:25,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-27 14:03:25,630 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand 19 states. [2020-10-27 14:03:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:03:26,036 INFO L93 Difference]: Finished difference Result 364 states and 366 transitions. [2020-10-27 14:03:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 14:03:26,038 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 196 [2020-10-27 14:03:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:03:26,040 INFO L225 Difference]: With dead ends: 364 [2020-10-27 14:03:26,040 INFO L226 Difference]: Without dead ends: 202 [2020-10-27 14:03:26,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-27 14:03:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-27 14:03:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2020-10-27 14:03:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-27 14:03:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 202 transitions. [2020-10-27 14:03:26,063 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 202 transitions. Word has length 196 [2020-10-27 14:03:26,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:03:26,063 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 202 transitions. [2020-10-27 14:03:26,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 14:03:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 202 transitions. [2020-10-27 14:03:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-27 14:03:26,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:03:26,065 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:03:26,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-27 14:03:26,065 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:03:26,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:03:26,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1857891389, now seen corresponding path program 34 times [2020-10-27 14:03:26,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:03:26,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971126216] [2020-10-27 14:03:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:03:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:26,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:31,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5134 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-27 14:03:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:03:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:03:33,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:03:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 14:03:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 14:03:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 14:03:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 14:03:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 14:03:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 14:03:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 14:03:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 14:03:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 14:03:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 14:03:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 14:03:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 14:03:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 14:03:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-27 14:03:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-27 14:03:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-27 14:03:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-27 14:03:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-27 14:03:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-27 14:03:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:03:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:03:33,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:03:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:03:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:03:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:03:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 38 proven. 888 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2020-10-27 14:03:33,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971126216] [2020-10-27 14:03:33,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:03:33,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-27 14:03:33,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322267881] [2020-10-27 14:03:33,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-27 14:03:33,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:03:33,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-27 14:03:33,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 14:03:33,339 INFO L87 Difference]: Start difference. First operand 201 states and 202 transitions. Second operand 34 states. [2020-10-27 14:03:35,781 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70