/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/locks/test_locks_8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:00:32,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:32,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:32,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:32,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:32,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:32,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:32,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:32,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:32,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:32,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:32,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:32,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:32,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:32,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:32,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:32,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:32,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:32,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:32,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:32,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:32,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:32,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:32,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:32,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:32,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:32,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:32,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:32,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:32,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:32,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:32,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:32,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:32,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:32,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:32,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:32,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:32,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:32,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:32,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:32,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:32,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:00:32,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:32,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:32,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:32,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:32,543 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:32,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:32,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:32,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:32,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:32,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:32,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:32,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:32,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:32,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:32,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:32,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:32,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:32,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:32,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:32,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:32,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:32,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:32,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:32,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:32,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:32,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:32,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:32,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:32,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:32,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:00:33,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:33,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:33,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:33,036 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:33,038 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:33,039 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_8.c [2020-09-24 16:00:33,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa9c4ae4/e91f10a0a4aa45868432fe3b2827d649/FLAGe813dfdbc [2020-09-24 16:00:33,660 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:33,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/locks/test_locks_8.c [2020-09-24 16:00:33,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa9c4ae4/e91f10a0a4aa45868432fe3b2827d649/FLAGe813dfdbc [2020-09-24 16:00:33,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa9c4ae4/e91f10a0a4aa45868432fe3b2827d649 [2020-09-24 16:00:33,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:33,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:33,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:33,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:33,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:33,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:33" (1/1) ... [2020-09-24 16:00:34,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:33, skipping insertion in model container [2020-09-24 16:00:34,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:33" (1/1) ... [2020-09-24 16:00:34,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:34,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:34,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:34,269 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:34,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:34,315 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:34,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34 WrapperNode [2020-09-24 16:00:34,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:34,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:34,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:34,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:34,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... [2020-09-24 16:00:34,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:34,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:34,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:34,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:34,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:34,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:34,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:34,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:34,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:34,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:34,851 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:34,851 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:34,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:34 BoogieIcfgContainer [2020-09-24 16:00:34,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:34,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:34,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:34,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:34,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:33" (1/3) ... [2020-09-24 16:00:34,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b285d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:34, skipping insertion in model container [2020-09-24 16:00:34,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:34" (2/3) ... [2020-09-24 16:00:34,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b285d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:34, skipping insertion in model container [2020-09-24 16:00:34,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:34" (3/3) ... [2020-09-24 16:00:34,868 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2020-09-24 16:00:34,881 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:34,891 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:34,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:34,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:34,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:34,949 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:34,949 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:34,949 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:34,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:34,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:34,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:34,977 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-24 16:00:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:00:34,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:34,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:34,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:35,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:35,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1717644884, now seen corresponding path program 1 times [2020-09-24 16:00:35,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:35,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452366296] [2020-09-24 16:00:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 16:00:35,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:00:35,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 16:00:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:35,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:35,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:35,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:35,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:35,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452366296] [2020-09-24 16:00:35,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:35,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:35,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960068924] [2020-09-24 16:00:35,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:35,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:35,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:35,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,326 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-24 16:00:35,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:35,406 INFO L93 Difference]: Finished difference Result 213 states and 291 transitions. [2020-09-24 16:00:35,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:35,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-09-24 16:00:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:35,428 INFO L225 Difference]: With dead ends: 213 [2020-09-24 16:00:35,428 INFO L226 Difference]: Without dead ends: 144 [2020-09-24 16:00:35,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-24 16:00:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2020-09-24 16:00:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 16:00:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2020-09-24 16:00:35,498 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 61 [2020-09-24 16:00:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,499 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2020-09-24 16:00:35,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2020-09-24 16:00:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 16:00:35,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:35,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:35,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:35,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash 16380224, now seen corresponding path program 1 times [2020-09-24 16:00:35,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:35,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927744800] [2020-09-24 16:00:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 16:00:35,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:35,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 16:00:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:35,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:35,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:35,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:35,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:35,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927744800] [2020-09-24 16:00:35,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:35,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:35,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56948481] [2020-09-24 16:00:35,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:35,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:35,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:35,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,607 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand 3 states. [2020-09-24 16:00:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:35,633 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2020-09-24 16:00:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:35,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-24 16:00:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:35,638 INFO L225 Difference]: With dead ends: 173 [2020-09-24 16:00:35,638 INFO L226 Difference]: Without dead ends: 171 [2020-09-24 16:00:35,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-24 16:00:35,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 142. [2020-09-24 16:00:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 16:00:35,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2020-09-24 16:00:35,658 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 62 [2020-09-24 16:00:35,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,659 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2020-09-24 16:00:35,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,659 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2020-09-24 16:00:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 16:00:35,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:35,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:35,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:35,662 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:35,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1707628474, now seen corresponding path program 1 times [2020-09-24 16:00:35,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:35,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211969480] [2020-09-24 16:00:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 16:00:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 16:00:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:00:35,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:35,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:35,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:35,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211969480] [2020-09-24 16:00:35,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:35,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:35,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467527309] [2020-09-24 16:00:35,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:35,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:35,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:35,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,800 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand 3 states. [2020-09-24 16:00:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:35,842 INFO L93 Difference]: Finished difference Result 346 states and 473 transitions. [2020-09-24 16:00:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:35,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-09-24 16:00:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:35,846 INFO L225 Difference]: With dead ends: 346 [2020-09-24 16:00:35,846 INFO L226 Difference]: Without dead ends: 241 [2020-09-24 16:00:35,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-24 16:00:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-24 16:00:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 16:00:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 320 transitions. [2020-09-24 16:00:35,887 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 320 transitions. Word has length 62 [2020-09-24 16:00:35,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,887 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 320 transitions. [2020-09-24 16:00:35,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,888 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 320 transitions. [2020-09-24 16:00:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 16:00:35,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:35,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:35,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:35,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:35,891 INFO L82 PathProgramCache]: Analyzing trace with hash -298745719, now seen corresponding path program 1 times [2020-09-24 16:00:35,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:35,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952648779] [2020-09-24 16:00:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 16:00:35,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:35,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:35,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-24 16:00:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:35,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:35,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:35,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:35,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:35,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:35,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:35,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:35,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:35,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:35,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:35,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:35,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952648779] [2020-09-24 16:00:35,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:35,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:35,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202105647] [2020-09-24 16:00:35,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:35,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:35,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:35,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,956 INFO L87 Difference]: Start difference. First operand 239 states and 320 transitions. Second operand 3 states. [2020-09-24 16:00:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:35,974 INFO L93 Difference]: Finished difference Result 293 states and 396 transitions. [2020-09-24 16:00:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:35,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-24 16:00:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:35,978 INFO L225 Difference]: With dead ends: 293 [2020-09-24 16:00:35,978 INFO L226 Difference]: Without dead ends: 291 [2020-09-24 16:00:35,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-24 16:00:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 239. [2020-09-24 16:00:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 16:00:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2020-09-24 16:00:35,998 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 63 [2020-09-24 16:00:35,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:35,999 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2020-09-24 16:00:35,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2020-09-24 16:00:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 16:00:36,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:36,001 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1397120136, now seen corresponding path program 1 times [2020-09-24 16:00:36,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295655211] [2020-09-24 16:00:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 16:00:36,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:36,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-24 16:00:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:36,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295655211] [2020-09-24 16:00:36,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746256815] [2020-09-24 16:00:36,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,114 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand 3 states. [2020-09-24 16:00:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,146 INFO L93 Difference]: Finished difference Result 631 states and 864 transitions. [2020-09-24 16:00:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-09-24 16:00:36,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,151 INFO L225 Difference]: With dead ends: 631 [2020-09-24 16:00:36,151 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 16:00:36,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 16:00:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2020-09-24 16:00:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-24 16:00:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2020-09-24 16:00:36,180 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 63 [2020-09-24 16:00:36,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,181 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2020-09-24 16:00:36,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,181 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2020-09-24 16:00:36,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 16:00:36,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:36,184 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,185 INFO L82 PathProgramCache]: Analyzing trace with hash 361296622, now seen corresponding path program 1 times [2020-09-24 16:00:36,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345906113] [2020-09-24 16:00:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 16:00:36,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:36,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 16:00:36,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:36,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345906113] [2020-09-24 16:00:36,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839830267] [2020-09-24 16:00:36,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,240 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand 3 states. [2020-09-24 16:00:36,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,267 INFO L93 Difference]: Finished difference Result 1183 states and 1616 transitions. [2020-09-24 16:00:36,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-24 16:00:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,272 INFO L225 Difference]: With dead ends: 1183 [2020-09-24 16:00:36,272 INFO L226 Difference]: Without dead ends: 793 [2020-09-24 16:00:36,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-09-24 16:00:36,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2020-09-24 16:00:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-24 16:00:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1062 transitions. [2020-09-24 16:00:36,299 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1062 transitions. Word has length 64 [2020-09-24 16:00:36,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,300 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1062 transitions. [2020-09-24 16:00:36,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,300 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1062 transitions. [2020-09-24 16:00:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 16:00:36,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:36,304 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1477714988, now seen corresponding path program 1 times [2020-09-24 16:00:36,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343008284] [2020-09-24 16:00:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 16:00:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343008284] [2020-09-24 16:00:36,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844617155] [2020-09-24 16:00:36,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,356 INFO L87 Difference]: Start difference. First operand 791 states and 1062 transitions. Second operand 3 states. [2020-09-24 16:00:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,380 INFO L93 Difference]: Finished difference Result 971 states and 1312 transitions. [2020-09-24 16:00:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-09-24 16:00:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,386 INFO L225 Difference]: With dead ends: 971 [2020-09-24 16:00:36,386 INFO L226 Difference]: Without dead ends: 969 [2020-09-24 16:00:36,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2020-09-24 16:00:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 791. [2020-09-24 16:00:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-24 16:00:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1054 transitions. [2020-09-24 16:00:36,409 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1054 transitions. Word has length 64 [2020-09-24 16:00:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,410 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1054 transitions. [2020-09-24 16:00:36,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1054 transitions. [2020-09-24 16:00:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 16:00:36,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:36,412 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,413 INFO L82 PathProgramCache]: Analyzing trace with hash 628943709, now seen corresponding path program 1 times [2020-09-24 16:00:36,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752855381] [2020-09-24 16:00:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:00:36,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 16:00:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752855381] [2020-09-24 16:00:36,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035319290] [2020-09-24 16:00:36,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,485 INFO L87 Difference]: Start difference. First operand 791 states and 1054 transitions. Second operand 3 states. [2020-09-24 16:00:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,511 INFO L93 Difference]: Finished difference Result 963 states and 1288 transitions. [2020-09-24 16:00:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-24 16:00:36,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,516 INFO L225 Difference]: With dead ends: 963 [2020-09-24 16:00:36,517 INFO L226 Difference]: Without dead ends: 961 [2020-09-24 16:00:36,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-09-24 16:00:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 791. [2020-09-24 16:00:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-24 16:00:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2020-09-24 16:00:36,543 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 65 [2020-09-24 16:00:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,544 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2020-09-24 16:00:36,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2020-09-24 16:00:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 16:00:36,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:36,546 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1684460868, now seen corresponding path program 1 times [2020-09-24 16:00:36,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342701029] [2020-09-24 16:00:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:00:36,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:36,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 16:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342701029] [2020-09-24 16:00:36,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731533786] [2020-09-24 16:00:36,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,614 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand 3 states. [2020-09-24 16:00:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,650 INFO L93 Difference]: Finished difference Result 2251 states and 3000 transitions. [2020-09-24 16:00:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-24 16:00:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,658 INFO L225 Difference]: With dead ends: 2251 [2020-09-24 16:00:36,658 INFO L226 Difference]: Without dead ends: 1497 [2020-09-24 16:00:36,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-09-24 16:00:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1495. [2020-09-24 16:00:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-24 16:00:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1958 transitions. [2020-09-24 16:00:36,697 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1958 transitions. Word has length 65 [2020-09-24 16:00:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,698 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1958 transitions. [2020-09-24 16:00:36,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1958 transitions. [2020-09-24 16:00:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-24 16:00:36,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:36,700 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1510854248, now seen corresponding path program 1 times [2020-09-24 16:00:36,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475228007] [2020-09-24 16:00:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 16:00:36,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:36,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 16:00:36,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475228007] [2020-09-24 16:00:36,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956924012] [2020-09-24 16:00:36,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,776 INFO L87 Difference]: Start difference. First operand 1495 states and 1958 transitions. Second operand 3 states. [2020-09-24 16:00:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,811 INFO L93 Difference]: Finished difference Result 1803 states and 2360 transitions. [2020-09-24 16:00:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-24 16:00:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,820 INFO L225 Difference]: With dead ends: 1803 [2020-09-24 16:00:36,821 INFO L226 Difference]: Without dead ends: 1801 [2020-09-24 16:00:36,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-09-24 16:00:36,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1495. [2020-09-24 16:00:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-09-24 16:00:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1942 transitions. [2020-09-24 16:00:36,870 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1942 transitions. Word has length 66 [2020-09-24 16:00:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:36,871 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1942 transitions. [2020-09-24 16:00:36,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:36,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1942 transitions. [2020-09-24 16:00:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-24 16:00:36,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:36,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:36,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:36,873 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:36,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:36,874 INFO L82 PathProgramCache]: Analyzing trace with hash -678433246, now seen corresponding path program 1 times [2020-09-24 16:00:36,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:36,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114762162] [2020-09-24 16:00:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-24 16:00:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:36,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:36,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:36,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:36,917 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:36,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:36,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:36,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:36,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:36,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114762162] [2020-09-24 16:00:36,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:36,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:36,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142032105] [2020-09-24 16:00:36,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:36,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:36,928 INFO L87 Difference]: Start difference. First operand 1495 states and 1942 transitions. Second operand 3 states. [2020-09-24 16:00:36,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:36,984 INFO L93 Difference]: Finished difference Result 4315 states and 5624 transitions. [2020-09-24 16:00:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:36,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-09-24 16:00:36,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:36,996 INFO L225 Difference]: With dead ends: 4315 [2020-09-24 16:00:36,996 INFO L226 Difference]: Without dead ends: 2857 [2020-09-24 16:00:37,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2020-09-24 16:00:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2855. [2020-09-24 16:00:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-24 16:00:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3654 transitions. [2020-09-24 16:00:37,071 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3654 transitions. Word has length 66 [2020-09-24 16:00:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:37,071 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3654 transitions. [2020-09-24 16:00:37,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3654 transitions. [2020-09-24 16:00:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 16:00:37,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:37,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:37,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:37,075 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:37,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1214689743, now seen corresponding path program 1 times [2020-09-24 16:00:37,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:37,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553809417] [2020-09-24 16:00:37,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 16:00:37,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:37,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 16:00:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,123 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,124 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:37,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:37,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553809417] [2020-09-24 16:00:37,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:37,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:37,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629171986] [2020-09-24 16:00:37,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:37,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:37,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:37,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,132 INFO L87 Difference]: Start difference. First operand 2855 states and 3654 transitions. Second operand 3 states. [2020-09-24 16:00:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:37,174 INFO L93 Difference]: Finished difference Result 3403 states and 4328 transitions. [2020-09-24 16:00:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:37,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-24 16:00:37,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:37,190 INFO L225 Difference]: With dead ends: 3403 [2020-09-24 16:00:37,190 INFO L226 Difference]: Without dead ends: 3401 [2020-09-24 16:00:37,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-09-24 16:00:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2855. [2020-09-24 16:00:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2855 states. [2020-09-24 16:00:37,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3622 transitions. [2020-09-24 16:00:37,282 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3622 transitions. Word has length 67 [2020-09-24 16:00:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:37,283 INFO L479 AbstractCegarLoop]: Abstraction has 2855 states and 3622 transitions. [2020-09-24 16:00:37,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3622 transitions. [2020-09-24 16:00:37,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 16:00:37,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:37,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:37,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:37,286 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:37,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:37,286 INFO L82 PathProgramCache]: Analyzing trace with hash 443652336, now seen corresponding path program 1 times [2020-09-24 16:00:37,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:37,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725220539] [2020-09-24 16:00:37,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,300 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 16:00:37,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 16:00:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:37,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725220539] [2020-09-24 16:00:37,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:37,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:37,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468878852] [2020-09-24 16:00:37,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:37,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:37,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:37,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,327 INFO L87 Difference]: Start difference. First operand 2855 states and 3622 transitions. Second operand 3 states. [2020-09-24 16:00:37,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:37,399 INFO L93 Difference]: Finished difference Result 8299 states and 10536 transitions. [2020-09-24 16:00:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:37,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-09-24 16:00:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:37,422 INFO L225 Difference]: With dead ends: 8299 [2020-09-24 16:00:37,422 INFO L226 Difference]: Without dead ends: 5481 [2020-09-24 16:00:37,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-09-24 16:00:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5479. [2020-09-24 16:00:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-24 16:00:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6822 transitions. [2020-09-24 16:00:37,576 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6822 transitions. Word has length 67 [2020-09-24 16:00:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:37,576 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6822 transitions. [2020-09-24 16:00:37,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6822 transitions. [2020-09-24 16:00:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-24 16:00:37,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:37,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:37,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:00:37,582 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:37,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:37,582 INFO L82 PathProgramCache]: Analyzing trace with hash 192792828, now seen corresponding path program 1 times [2020-09-24 16:00:37,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:37,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807722795] [2020-09-24 16:00:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 16:00:37,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:37,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:37,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:37,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807722795] [2020-09-24 16:00:37,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:37,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:37,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526568058] [2020-09-24 16:00:37,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:37,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:37,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:37,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,646 INFO L87 Difference]: Start difference. First operand 5479 states and 6822 transitions. Second operand 3 states. [2020-09-24 16:00:37,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:37,733 INFO L93 Difference]: Finished difference Result 6443 states and 7912 transitions. [2020-09-24 16:00:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:37,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-24 16:00:37,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:37,759 INFO L225 Difference]: With dead ends: 6443 [2020-09-24 16:00:37,760 INFO L226 Difference]: Without dead ends: 6441 [2020-09-24 16:00:37,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-09-24 16:00:37,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5479. [2020-09-24 16:00:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-24 16:00:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6758 transitions. [2020-09-24 16:00:37,884 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6758 transitions. Word has length 68 [2020-09-24 16:00:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:37,885 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6758 transitions. [2020-09-24 16:00:37,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6758 transitions. [2020-09-24 16:00:37,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-24 16:00:37,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:37,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:37,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:00:37,889 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:37,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:37,890 INFO L82 PathProgramCache]: Analyzing trace with hash 868567382, now seen corresponding path program 1 times [2020-09-24 16:00:37,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:37,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865900325] [2020-09-24 16:00:37,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 16:00:37,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:37,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 16:00:37,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:00:37,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:37,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:37,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:37,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:37,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:37,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:37,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:37,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:37,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:37,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:37,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865900325] [2020-09-24 16:00:37,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:37,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:37,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084418222] [2020-09-24 16:00:37,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:37,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:37,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:37,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:37,927 INFO L87 Difference]: Start difference. First operand 5479 states and 6758 transitions. Second operand 3 states. [2020-09-24 16:00:38,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:38,019 INFO L93 Difference]: Finished difference Result 15977 states and 19687 transitions. [2020-09-24 16:00:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:38,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-09-24 16:00:38,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:38,041 INFO L225 Difference]: With dead ends: 15977 [2020-09-24 16:00:38,041 INFO L226 Difference]: Without dead ends: 5479 [2020-09-24 16:00:38,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-24 16:00:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-24 16:00:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-24 16:00:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 6502 transitions. [2020-09-24 16:00:38,166 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 6502 transitions. Word has length 68 [2020-09-24 16:00:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:38,167 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 6502 transitions. [2020-09-24 16:00:38,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 6502 transitions. [2020-09-24 16:00:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 16:00:38,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:38,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:38,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:00:38,172 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:38,172 INFO L82 PathProgramCache]: Analyzing trace with hash 875079941, now seen corresponding path program 1 times [2020-09-24 16:00:38,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:38,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060739183] [2020-09-24 16:00:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:38,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:38,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:38,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:38,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:38,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 16:00:38,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:38,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-24 16:00:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:00:38,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:38,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:38,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:38,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:38,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:38,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:38,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:38,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:38,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060739183] [2020-09-24 16:00:38,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:38,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:38,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215696651] [2020-09-24 16:00:38,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:38,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:38,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:38,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:38,218 INFO L87 Difference]: Start difference. First operand 5479 states and 6502 transitions. Second operand 3 states. [2020-09-24 16:00:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:38,284 INFO L93 Difference]: Finished difference Result 5479 states and 6502 transitions. [2020-09-24 16:00:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:38,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-09-24 16:00:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:38,285 INFO L225 Difference]: With dead ends: 5479 [2020-09-24 16:00:38,286 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:00:38,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:00:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:00:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:00:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:00:38,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-09-24 16:00:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:38,294 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:00:38,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:00:38,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:00:38,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 16:00:38,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:00:38,321 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 16:00:38,322 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:38,322 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:00:38,322 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:00:38,322 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:00:38,322 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:00:38,322 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-24 16:00:38,322 INFO L264 CegarLoopResult]: At program point L126-1(lines 5 135) the Hoare annotation is: false [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L60-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4 135) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-24 16:00:38,323 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L110-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-24 16:00:38,324 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L95-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,325 INFO L268 CegarLoopResult]: For program point L120-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4 135) no Hoare annotation was computed. [2020-09-24 16:00:38,326 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 133) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 135) the Hoare annotation is: true [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point L80-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,327 INFO L268 CegarLoopResult]: For program point L105-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L72-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L64-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-24 16:00:38,328 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L56-2(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 16:00:38,329 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L271 CegarLoopResult]: At program point L131(lines 5 135) the Hoare annotation is: true [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L90-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,330 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L115-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 16:00:38,331 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L100-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 16:00:38,332 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L271 CegarLoopResult]: At program point L125-1(lines 33 130) the Hoare annotation is: true [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L84-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 16:00:38,333 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L76-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-09-24 16:00:38,334 INFO L268 CegarLoopResult]: For program point L68-1(lines 33 130) no Hoare annotation was computed. [2020-09-24 16:00:38,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:38 BoogieIcfgContainer [2020-09-24 16:00:38,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:38,352 INFO L168 Benchmark]: Toolchain (without parser) took 4367.63 ms. Allocated memory was 138.9 MB in the beginning and 299.4 MB in the end (delta: 160.4 MB). Free memory was 100.8 MB in the beginning and 250.3 MB in the end (delta: -149.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,353 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.65 ms. Allocated memory is still 138.9 MB. Free memory was 100.2 MB in the beginning and 89.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,354 INFO L168 Benchmark]: Boogie Preprocessor took 117.92 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 89.8 MB in the beginning and 179.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,355 INFO L168 Benchmark]: RCFGBuilder took 423.05 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 157.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,356 INFO L168 Benchmark]: TraceAbstraction took 3489.31 ms. Allocated memory was 201.9 MB in the beginning and 299.4 MB in the end (delta: 97.5 MB). Free memory was 156.5 MB in the beginning and 250.3 MB in the end (delta: -93.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:38,359 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.65 ms. Allocated memory is still 138.9 MB. Free memory was 100.2 MB in the beginning and 89.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.92 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 89.8 MB in the beginning and 179.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.05 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 157.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3489.31 ms. Allocated memory was 201.9 MB in the beginning and 299.4 MB in the end (delta: 97.5 MB). Free memory was 156.5 MB in the beginning and 250.3 MB in the end (delta: -93.8 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 133]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2345 SDtfs, 845 SDslu, 1664 SDs, 0 SdLazy, 79 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5479occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 16 MinimizatonAttempts, 2257 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 265 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1024 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...