/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:45:17,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:45:17,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:45:17,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:45:17,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:45:17,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:45:17,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:45:17,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:45:17,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:45:17,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:45:17,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:45:17,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:45:17,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:45:17,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:45:17,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:45:17,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:45:17,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:45:17,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:45:17,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:45:17,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:45:17,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:45:17,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:45:17,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:45:17,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:45:17,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:45:17,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:45:17,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:45:17,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:45:17,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:45:17,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:45:17,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:45:17,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:45:17,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:45:17,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:45:17,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:45:17,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:45:17,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:45:17,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:45:17,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:45:17,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:45:17,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:45:17,540 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:45:17,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:45:17,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:45:17,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:45:17,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:45:17,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:45:17,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:45:17,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:45:17,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:45:17,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:45:17,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:45:17,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:45:17,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:45:17,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:45:17,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:45:17,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:45:17,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:45:17,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:45:17,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:45:17,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:45:17,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:45:17,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:45:17,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:45:17,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:45:17,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:45:17,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:45:17,993 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:45:17,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-22 08:45:18,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d7ebe089/23550bdf1ca348a899fd502108f401ec/FLAG775a368b4 [2020-12-22 08:45:18,684 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:45:18,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-22 08:45:18,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d7ebe089/23550bdf1ca348a899fd502108f401ec/FLAG775a368b4 [2020-12-22 08:45:19,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d7ebe089/23550bdf1ca348a899fd502108f401ec [2020-12-22 08:45:19,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:45:19,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:45:19,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:45:19,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:45:19,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:45:19,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c398bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19, skipping insertion in model container [2020-12-22 08:45:19,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:45:19,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:45:19,468 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7577,7590] [2020-12-22 08:45:19,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:45:19,537 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:45:19,646 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7577,7590] [2020-12-22 08:45:19,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:45:19,747 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:45:19,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19 WrapperNode [2020-12-22 08:45:19,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:45:19,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:45:19,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:45:19,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:45:19,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:45:19,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:45:19,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:45:19,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:45:19,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... [2020-12-22 08:45:19,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:45:19,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:45:19,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:45:19,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:45:19,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 08:45:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:45:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:45:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:45:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:45:20,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:45:20,968 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:45:20,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:45:20 BoogieIcfgContainer [2020-12-22 08:45:20,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:45:20,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:45:20,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:45:20,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:45:20,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:45:19" (1/3) ... [2020-12-22 08:45:20,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f60c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:45:20, skipping insertion in model container [2020-12-22 08:45:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:45:19" (2/3) ... [2020-12-22 08:45:20,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f60c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:45:20, skipping insertion in model container [2020-12-22 08:45:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:45:20" (3/3) ... [2020-12-22 08:45:20,979 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2020-12-22 08:45:20,985 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:45:20,990 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 08:45:21,009 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 08:45:21,036 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:45:21,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:45:21,037 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:45:21,037 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:45:21,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:45:21,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:45:21,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:45:21,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:45:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-12-22 08:45:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:45:21,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:21,065 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:21,065 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:21,072 INFO L82 PathProgramCache]: Analyzing trace with hash -95572409, now seen corresponding path program 1 times [2020-12-22 08:45:21,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:21,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38637200] [2020-12-22 08:45:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:21,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38637200] [2020-12-22 08:45:21,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:21,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:45:21,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625245404] [2020-12-22 08:45:21,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:45:21,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:21,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:45:21,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:21,555 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 3 states. [2020-12-22 08:45:21,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:21,734 INFO L93 Difference]: Finished difference Result 295 states and 489 transitions. [2020-12-22 08:45:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:45:21,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 08:45:21,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:21,780 INFO L225 Difference]: With dead ends: 295 [2020-12-22 08:45:21,780 INFO L226 Difference]: Without dead ends: 225 [2020-12-22 08:45:21,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-12-22 08:45:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2020-12-22 08:45:21,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-12-22 08:45:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 321 transitions. [2020-12-22 08:45:21,885 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 321 transitions. Word has length 76 [2020-12-22 08:45:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:21,885 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 321 transitions. [2020-12-22 08:45:21,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:45:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 321 transitions. [2020-12-22 08:45:21,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:45:21,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:21,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:21,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:45:21,891 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:21,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:21,893 INFO L82 PathProgramCache]: Analyzing trace with hash -136563640, now seen corresponding path program 1 times [2020-12-22 08:45:21,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:21,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49302710] [2020-12-22 08:45:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:22,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49302710] [2020-12-22 08:45:22,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:22,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:22,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239486437] [2020-12-22 08:45:22,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:22,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:22,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:22,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:22,082 INFO L87 Difference]: Start difference. First operand 223 states and 321 transitions. Second operand 6 states. [2020-12-22 08:45:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:22,328 INFO L93 Difference]: Finished difference Result 559 states and 839 transitions. [2020-12-22 08:45:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:22,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-12-22 08:45:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:22,332 INFO L225 Difference]: With dead ends: 559 [2020-12-22 08:45:22,332 INFO L226 Difference]: Without dead ends: 374 [2020-12-22 08:45:22,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:22,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-12-22 08:45:22,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 372. [2020-12-22 08:45:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-12-22 08:45:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 553 transitions. [2020-12-22 08:45:22,380 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 553 transitions. Word has length 78 [2020-12-22 08:45:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:22,381 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 553 transitions. [2020-12-22 08:45:22,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 553 transitions. [2020-12-22 08:45:22,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:22,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:22,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:22,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:45:22,392 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:22,393 INFO L82 PathProgramCache]: Analyzing trace with hash 693922755, now seen corresponding path program 1 times [2020-12-22 08:45:22,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:22,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803031461] [2020-12-22 08:45:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:22,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803031461] [2020-12-22 08:45:22,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:22,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:22,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342545138] [2020-12-22 08:45:22,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:22,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:22,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:22,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:22,628 INFO L87 Difference]: Start difference. First operand 372 states and 553 transitions. Second operand 6 states. [2020-12-22 08:45:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:22,828 INFO L93 Difference]: Finished difference Result 918 states and 1401 transitions. [2020-12-22 08:45:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:22,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-22 08:45:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:22,841 INFO L225 Difference]: With dead ends: 918 [2020-12-22 08:45:22,841 INFO L226 Difference]: Without dead ends: 600 [2020-12-22 08:45:22,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:22,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-12-22 08:45:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2020-12-22 08:45:22,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-12-22 08:45:22,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 900 transitions. [2020-12-22 08:45:22,884 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 900 transitions. Word has length 79 [2020-12-22 08:45:22,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:22,885 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 900 transitions. [2020-12-22 08:45:22,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 900 transitions. [2020-12-22 08:45:22,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:45:22,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:22,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:22,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:45:22,888 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash 465447848, now seen corresponding path program 1 times [2020-12-22 08:45:22,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:22,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327267412] [2020-12-22 08:45:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:22,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327267412] [2020-12-22 08:45:22,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:22,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:22,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021186810] [2020-12-22 08:45:22,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:45:22,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:22,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:45:22,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:22,997 INFO L87 Difference]: Start difference. First operand 598 states and 900 transitions. Second operand 6 states. [2020-12-22 08:45:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:23,265 INFO L93 Difference]: Finished difference Result 1616 states and 2472 transitions. [2020-12-22 08:45:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:23,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-12-22 08:45:23,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:23,273 INFO L225 Difference]: With dead ends: 1616 [2020-12-22 08:45:23,273 INFO L226 Difference]: Without dead ends: 1068 [2020-12-22 08:45:23,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:45:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-12-22 08:45:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1066. [2020-12-22 08:45:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-22 08:45:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1615 transitions. [2020-12-22 08:45:23,359 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1615 transitions. Word has length 80 [2020-12-22 08:45:23,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:23,360 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1615 transitions. [2020-12-22 08:45:23,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:45:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1615 transitions. [2020-12-22 08:45:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:23,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:23,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:23,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:45:23,362 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:23,363 INFO L82 PathProgramCache]: Analyzing trace with hash -397736337, now seen corresponding path program 1 times [2020-12-22 08:45:23,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:23,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272327613] [2020-12-22 08:45:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:23,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272327613] [2020-12-22 08:45:23,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:23,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:45:23,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163041392] [2020-12-22 08:45:23,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:45:23,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:23,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:45:23,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:45:23,450 INFO L87 Difference]: Start difference. First operand 1066 states and 1615 transitions. Second operand 5 states. [2020-12-22 08:45:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:23,687 INFO L93 Difference]: Finished difference Result 2086 states and 3182 transitions. [2020-12-22 08:45:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:23,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-12-22 08:45:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:23,694 INFO L225 Difference]: With dead ends: 2086 [2020-12-22 08:45:23,694 INFO L226 Difference]: Without dead ends: 1066 [2020-12-22 08:45:23,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-22 08:45:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-12-22 08:45:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-22 08:45:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1598 transitions. [2020-12-22 08:45:23,796 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1598 transitions. Word has length 81 [2020-12-22 08:45:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:23,797 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1598 transitions. [2020-12-22 08:45:23,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:45:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1598 transitions. [2020-12-22 08:45:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:45:23,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:23,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:23,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:45:23,804 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:23,805 INFO L82 PathProgramCache]: Analyzing trace with hash 59673876, now seen corresponding path program 1 times [2020-12-22 08:45:23,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:23,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151338656] [2020-12-22 08:45:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:23,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151338656] [2020-12-22 08:45:23,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:23,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:45:23,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830466029] [2020-12-22 08:45:23,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:45:23,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:23,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:45:23,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:45:23,929 INFO L87 Difference]: Start difference. First operand 1066 states and 1598 transitions. Second operand 5 states. [2020-12-22 08:45:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:24,177 INFO L93 Difference]: Finished difference Result 2090 states and 3153 transitions. [2020-12-22 08:45:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:45:24,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-22 08:45:24,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:24,184 INFO L225 Difference]: With dead ends: 2090 [2020-12-22 08:45:24,184 INFO L226 Difference]: Without dead ends: 1066 [2020-12-22 08:45:24,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-22 08:45:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-12-22 08:45:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-22 08:45:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1581 transitions. [2020-12-22 08:45:24,278 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1581 transitions. Word has length 82 [2020-12-22 08:45:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:24,279 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 1581 transitions. [2020-12-22 08:45:24,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:45:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1581 transitions. [2020-12-22 08:45:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:24,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:24,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:24,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:45:24,298 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:24,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:24,299 INFO L82 PathProgramCache]: Analyzing trace with hash 479841819, now seen corresponding path program 1 times [2020-12-22 08:45:24,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:24,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026959567] [2020-12-22 08:45:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:24,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026959567] [2020-12-22 08:45:24,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:24,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:24,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742579604] [2020-12-22 08:45:24,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:45:24,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:24,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:45:24,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:24,464 INFO L87 Difference]: Start difference. First operand 1066 states and 1581 transitions. Second operand 7 states. [2020-12-22 08:45:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:25,045 INFO L93 Difference]: Finished difference Result 5814 states and 8751 transitions. [2020-12-22 08:45:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 08:45:25,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-12-22 08:45:25,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:25,074 INFO L225 Difference]: With dead ends: 5814 [2020-12-22 08:45:25,074 INFO L226 Difference]: Without dead ends: 4924 [2020-12-22 08:45:25,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4924 states. [2020-12-22 08:45:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4924 to 1526. [2020-12-22 08:45:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-12-22 08:45:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2281 transitions. [2020-12-22 08:45:25,336 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2281 transitions. Word has length 83 [2020-12-22 08:45:25,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:25,337 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 2281 transitions. [2020-12-22 08:45:25,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:45:25,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2281 transitions. [2020-12-22 08:45:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:25,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:25,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:25,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:45:25,339 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash -2031969341, now seen corresponding path program 1 times [2020-12-22 08:45:25,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:25,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587953647] [2020-12-22 08:45:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:25,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587953647] [2020-12-22 08:45:25,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:25,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:25,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947643901] [2020-12-22 08:45:25,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:45:25,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:25,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:45:25,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:25,469 INFO L87 Difference]: Start difference. First operand 1526 states and 2281 transitions. Second operand 7 states. [2020-12-22 08:45:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:26,137 INFO L93 Difference]: Finished difference Result 6214 states and 9357 transitions. [2020-12-22 08:45:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 08:45:26,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-12-22 08:45:26,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:26,165 INFO L225 Difference]: With dead ends: 6214 [2020-12-22 08:45:26,165 INFO L226 Difference]: Without dead ends: 5324 [2020-12-22 08:45:26,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2020-12-22 08:45:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 2498. [2020-12-22 08:45:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2020-12-22 08:45:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3757 transitions. [2020-12-22 08:45:26,520 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3757 transitions. Word has length 83 [2020-12-22 08:45:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:26,521 INFO L481 AbstractCegarLoop]: Abstraction has 2498 states and 3757 transitions. [2020-12-22 08:45:26,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:45:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3757 transitions. [2020-12-22 08:45:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:26,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:26,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:26,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:45:26,531 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:26,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:26,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1257963832, now seen corresponding path program 1 times [2020-12-22 08:45:26,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:26,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464175744] [2020-12-22 08:45:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:26,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464175744] [2020-12-22 08:45:26,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:26,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:45:26,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181954066] [2020-12-22 08:45:26,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:45:26,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:26,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:45:26,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:26,613 INFO L87 Difference]: Start difference. First operand 2498 states and 3757 transitions. Second operand 3 states. [2020-12-22 08:45:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:27,056 INFO L93 Difference]: Finished difference Result 6150 states and 9303 transitions. [2020-12-22 08:45:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:45:27,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 08:45:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:27,078 INFO L225 Difference]: With dead ends: 6150 [2020-12-22 08:45:27,078 INFO L226 Difference]: Without dead ends: 3880 [2020-12-22 08:45:27,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2020-12-22 08:45:27,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3878. [2020-12-22 08:45:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3878 states. [2020-12-22 08:45:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5793 transitions. [2020-12-22 08:45:27,523 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5793 transitions. Word has length 83 [2020-12-22 08:45:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:27,524 INFO L481 AbstractCegarLoop]: Abstraction has 3878 states and 5793 transitions. [2020-12-22 08:45:27,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:45:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5793 transitions. [2020-12-22 08:45:27,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:27,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:27,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:27,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:45:27,526 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1051065337, now seen corresponding path program 1 times [2020-12-22 08:45:27,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:27,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260559962] [2020-12-22 08:45:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:27,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260559962] [2020-12-22 08:45:27,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:27,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:45:27,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440652434] [2020-12-22 08:45:27,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:45:27,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:27,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:45:27,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:27,592 INFO L87 Difference]: Start difference. First operand 3878 states and 5793 transitions. Second operand 3 states. [2020-12-22 08:45:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:28,544 INFO L93 Difference]: Finished difference Result 10786 states and 16099 transitions. [2020-12-22 08:45:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:45:28,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 08:45:28,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:28,606 INFO L225 Difference]: With dead ends: 10786 [2020-12-22 08:45:28,606 INFO L226 Difference]: Without dead ends: 7136 [2020-12-22 08:45:28,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:45:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2020-12-22 08:45:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 7134. [2020-12-22 08:45:29,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7134 states. [2020-12-22 08:45:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 10505 transitions. [2020-12-22 08:45:29,527 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 10505 transitions. Word has length 83 [2020-12-22 08:45:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:29,527 INFO L481 AbstractCegarLoop]: Abstraction has 7134 states and 10505 transitions. [2020-12-22 08:45:29,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:45:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 10505 transitions. [2020-12-22 08:45:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:29,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:29,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:29,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:45:29,530 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:29,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1066791687, now seen corresponding path program 1 times [2020-12-22 08:45:29,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:29,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213612702] [2020-12-22 08:45:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:29,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213612702] [2020-12-22 08:45:29,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:29,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:29,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805587457] [2020-12-22 08:45:29,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:45:29,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:29,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:45:29,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:29,668 INFO L87 Difference]: Start difference. First operand 7134 states and 10505 transitions. Second operand 7 states. [2020-12-22 08:45:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:31,275 INFO L93 Difference]: Finished difference Result 19232 states and 28383 transitions. [2020-12-22 08:45:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 08:45:31,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-12-22 08:45:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:31,312 INFO L225 Difference]: With dead ends: 19232 [2020-12-22 08:45:31,312 INFO L226 Difference]: Without dead ends: 16670 [2020-12-22 08:45:31,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16670 states. [2020-12-22 08:45:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16670 to 8874. [2020-12-22 08:45:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8874 states. [2020-12-22 08:45:32,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8874 states to 8874 states and 13069 transitions. [2020-12-22 08:45:32,285 INFO L78 Accepts]: Start accepts. Automaton has 8874 states and 13069 transitions. Word has length 83 [2020-12-22 08:45:32,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:32,286 INFO L481 AbstractCegarLoop]: Abstraction has 8874 states and 13069 transitions. [2020-12-22 08:45:32,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:45:32,286 INFO L276 IsEmpty]: Start isEmpty. Operand 8874 states and 13069 transitions. [2020-12-22 08:45:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:32,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:32,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:32,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:45:32,289 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:32,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1309753425, now seen corresponding path program 1 times [2020-12-22 08:45:32,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:32,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364090590] [2020-12-22 08:45:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:32,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:32,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364090590] [2020-12-22 08:45:32,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:32,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:32,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234045635] [2020-12-22 08:45:32,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:45:32,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:32,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:45:32,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:32,421 INFO L87 Difference]: Start difference. First operand 8874 states and 13069 transitions. Second operand 7 states. [2020-12-22 08:45:34,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:34,084 INFO L93 Difference]: Finished difference Result 21470 states and 31703 transitions. [2020-12-22 08:45:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 08:45:34,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-12-22 08:45:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:34,130 INFO L225 Difference]: With dead ends: 21470 [2020-12-22 08:45:34,131 INFO L226 Difference]: Without dead ends: 18908 [2020-12-22 08:45:34,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18908 states. [2020-12-22 08:45:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18908 to 10653. [2020-12-22 08:45:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10653 states. [2020-12-22 08:45:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10653 states to 10653 states and 15693 transitions. [2020-12-22 08:45:35,102 INFO L78 Accepts]: Start accepts. Automaton has 10653 states and 15693 transitions. Word has length 83 [2020-12-22 08:45:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:35,102 INFO L481 AbstractCegarLoop]: Abstraction has 10653 states and 15693 transitions. [2020-12-22 08:45:35,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:45:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10653 states and 15693 transitions. [2020-12-22 08:45:35,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:45:35,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:35,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:35,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:45:35,105 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:35,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:35,106 INFO L82 PathProgramCache]: Analyzing trace with hash 716839727, now seen corresponding path program 1 times [2020-12-22 08:45:35,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:35,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374828592] [2020-12-22 08:45:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:35,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374828592] [2020-12-22 08:45:35,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:35,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:45:35,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303973115] [2020-12-22 08:45:35,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:45:35,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:35,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:45:35,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:45:35,214 INFO L87 Difference]: Start difference. First operand 10653 states and 15693 transitions. Second operand 7 states. [2020-12-22 08:45:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:37,703 INFO L93 Difference]: Finished difference Result 23046 states and 34027 transitions. [2020-12-22 08:45:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 08:45:37,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-12-22 08:45:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:37,754 INFO L225 Difference]: With dead ends: 23046 [2020-12-22 08:45:37,755 INFO L226 Difference]: Without dead ends: 20484 [2020-12-22 08:45:37,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20484 states. [2020-12-22 08:45:39,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20484 to 12413. [2020-12-22 08:45:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12413 states. [2020-12-22 08:45:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 18289 transitions. [2020-12-22 08:45:39,457 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 18289 transitions. Word has length 83 [2020-12-22 08:45:39,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:39,458 INFO L481 AbstractCegarLoop]: Abstraction has 12413 states and 18289 transitions. [2020-12-22 08:45:39,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:45:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 18289 transitions. [2020-12-22 08:45:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:45:39,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:39,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:39,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:45:39,461 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:39,461 INFO L82 PathProgramCache]: Analyzing trace with hash 340263851, now seen corresponding path program 1 times [2020-12-22 08:45:39,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:39,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106517446] [2020-12-22 08:45:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:39,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106517446] [2020-12-22 08:45:39,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:39,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:45:39,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978831687] [2020-12-22 08:45:39,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:45:39,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:45:39,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:45:39,557 INFO L87 Difference]: Start difference. First operand 12413 states and 18289 transitions. Second operand 5 states. [2020-12-22 08:45:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:42,145 INFO L93 Difference]: Finished difference Result 20975 states and 30898 transitions. [2020-12-22 08:45:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 08:45:42,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-12-22 08:45:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:42,185 INFO L225 Difference]: With dead ends: 20975 [2020-12-22 08:45:42,185 INFO L226 Difference]: Without dead ends: 20973 [2020-12-22 08:45:42,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:45:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20973 states. [2020-12-22 08:45:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20973 to 12509. [2020-12-22 08:45:43,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2020-12-22 08:45:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18329 transitions. [2020-12-22 08:45:43,758 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18329 transitions. Word has length 84 [2020-12-22 08:45:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:43,758 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18329 transitions. [2020-12-22 08:45:43,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:45:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18329 transitions. [2020-12-22 08:45:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:45:43,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:43,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:43,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:45:43,761 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:43,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1580243929, now seen corresponding path program 1 times [2020-12-22 08:45:43,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:43,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017673727] [2020-12-22 08:45:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:43,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017673727] [2020-12-22 08:45:43,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:43,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:45:43,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100148498] [2020-12-22 08:45:43,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:45:43,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:43,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:45:43,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:45:43,980 INFO L87 Difference]: Start difference. First operand 12509 states and 18329 transitions. Second operand 10 states. [2020-12-22 08:45:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:47,594 INFO L93 Difference]: Finished difference Result 37582 states and 54898 transitions. [2020-12-22 08:45:47,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:45:47,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-12-22 08:45:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:47,646 INFO L225 Difference]: With dead ends: 37582 [2020-12-22 08:45:47,647 INFO L226 Difference]: Without dead ends: 25307 [2020-12-22 08:45:47,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:47,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25307 states. [2020-12-22 08:45:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25307 to 12509. [2020-12-22 08:45:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12509 states. [2020-12-22 08:45:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 18320 transitions. [2020-12-22 08:45:49,514 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 18320 transitions. Word has length 84 [2020-12-22 08:45:49,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:49,515 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 18320 transitions. [2020-12-22 08:45:49,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:45:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 18320 transitions. [2020-12-22 08:45:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 08:45:49,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:49,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:49,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:45:49,518 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:49,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:49,519 INFO L82 PathProgramCache]: Analyzing trace with hash 568884420, now seen corresponding path program 1 times [2020-12-22 08:45:49,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:49,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335722450] [2020-12-22 08:45:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:49,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335722450] [2020-12-22 08:45:49,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:49,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:49,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96098918] [2020-12-22 08:45:49,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:49,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:49,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:49,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:49,783 INFO L87 Difference]: Start difference. First operand 12509 states and 18320 transitions. Second operand 9 states. [2020-12-22 08:45:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:52,607 INFO L93 Difference]: Finished difference Result 30900 states and 45273 transitions. [2020-12-22 08:45:52,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 08:45:52,608 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-12-22 08:45:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:52,640 INFO L225 Difference]: With dead ends: 30900 [2020-12-22 08:45:52,640 INFO L226 Difference]: Without dead ends: 18590 [2020-12-22 08:45:52,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:45:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18590 states. [2020-12-22 08:45:54,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18590 to 12428. [2020-12-22 08:45:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12428 states. [2020-12-22 08:45:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 18202 transitions. [2020-12-22 08:45:54,389 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 18202 transitions. Word has length 85 [2020-12-22 08:45:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:54,389 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 18202 transitions. [2020-12-22 08:45:54,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 18202 transitions. [2020-12-22 08:45:54,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 08:45:54,391 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:54,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:54,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:45:54,392 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:54,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:54,392 INFO L82 PathProgramCache]: Analyzing trace with hash 690607320, now seen corresponding path program 1 times [2020-12-22 08:45:54,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:54,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504223885] [2020-12-22 08:45:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:54,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504223885] [2020-12-22 08:45:54,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:54,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:45:54,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108585817] [2020-12-22 08:45:54,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:45:54,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:54,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:45:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:45:54,618 INFO L87 Difference]: Start difference. First operand 12428 states and 18202 transitions. Second operand 10 states. [2020-12-22 08:45:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:57,732 INFO L93 Difference]: Finished difference Result 27079 states and 39619 transitions. [2020-12-22 08:45:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:45:57,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-12-22 08:45:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:57,749 INFO L225 Difference]: With dead ends: 27079 [2020-12-22 08:45:57,749 INFO L226 Difference]: Without dead ends: 14766 [2020-12-22 08:45:57,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14766 states. [2020-12-22 08:45:59,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 12428. [2020-12-22 08:45:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12428 states. [2020-12-22 08:45:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 18200 transitions. [2020-12-22 08:45:59,596 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 18200 transitions. Word has length 85 [2020-12-22 08:45:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:59,596 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 18200 transitions. [2020-12-22 08:45:59,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:45:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 18200 transitions. [2020-12-22 08:45:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:45:59,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:59,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:59,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:45:59,598 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:45:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:59,599 INFO L82 PathProgramCache]: Analyzing trace with hash 858219453, now seen corresponding path program 1 times [2020-12-22 08:45:59,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:59,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783809647] [2020-12-22 08:45:59,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:45:59,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783809647] [2020-12-22 08:45:59,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:59,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:45:59,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635909729] [2020-12-22 08:45:59,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:45:59,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:59,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:45:59,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:45:59,815 INFO L87 Difference]: Start difference. First operand 12428 states and 18200 transitions. Second operand 10 states. [2020-12-22 08:46:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:04,882 INFO L93 Difference]: Finished difference Result 37492 states and 54752 transitions. [2020-12-22 08:46:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:46:04,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-12-22 08:46:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:04,907 INFO L225 Difference]: With dead ends: 37492 [2020-12-22 08:46:04,907 INFO L226 Difference]: Without dead ends: 25189 [2020-12-22 08:46:04,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25189 states. [2020-12-22 08:46:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25189 to 12428. [2020-12-22 08:46:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12428 states. [2020-12-22 08:46:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 18196 transitions. [2020-12-22 08:46:07,157 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 18196 transitions. Word has length 86 [2020-12-22 08:46:07,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:07,158 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 18196 transitions. [2020-12-22 08:46:07,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:46:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 18196 transitions. [2020-12-22 08:46:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:46:07,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:07,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:07,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:46:07,160 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:07,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:07,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1331278477, now seen corresponding path program 1 times [2020-12-22 08:46:07,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:07,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499800385] [2020-12-22 08:46:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:07,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499800385] [2020-12-22 08:46:07,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:07,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:46:07,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112524102] [2020-12-22 08:46:07,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:46:07,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:46:07,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:46:07,376 INFO L87 Difference]: Start difference. First operand 12428 states and 18196 transitions. Second operand 10 states. [2020-12-22 08:46:13,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:13,875 INFO L93 Difference]: Finished difference Result 43135 states and 63160 transitions. [2020-12-22 08:46:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 08:46:13,875 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-12-22 08:46:13,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:13,916 INFO L225 Difference]: With dead ends: 43135 [2020-12-22 08:46:13,916 INFO L226 Difference]: Without dead ends: 30912 [2020-12-22 08:46:13,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-22 08:46:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30912 states. [2020-12-22 08:46:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30912 to 12428. [2020-12-22 08:46:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12428 states. [2020-12-22 08:46:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 18183 transitions. [2020-12-22 08:46:16,338 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 18183 transitions. Word has length 87 [2020-12-22 08:46:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:16,338 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 18183 transitions. [2020-12-22 08:46:16,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:46:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 18183 transitions. [2020-12-22 08:46:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:46:16,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:16,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:16,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:46:16,340 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:46:16,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:16,341 INFO L82 PathProgramCache]: Analyzing trace with hash -479617813, now seen corresponding path program 1 times [2020-12-22 08:46:16,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:16,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571184910] [2020-12-22 08:46:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:17,997 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-22 08:46:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:46:18,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571184910] [2020-12-22 08:46:18,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:18,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-12-22 08:46:18,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492375611] [2020-12-22 08:46:18,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 08:46:18,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 08:46:18,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:46:18,874 INFO L87 Difference]: Start difference. First operand 12428 states and 18183 transitions. Second operand 34 states. [2020-12-22 08:46:19,428 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-12-22 08:46:20,182 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-12-22 08:46:20,405 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-12-22 08:46:20,666 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:46:20,935 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 08:46:21,203 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:46:21,769 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-22 08:46:22,130 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-12-22 08:46:22,550 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-12-22 08:46:22,997 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-22 08:46:23,535 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-12-22 08:46:24,116 WARN L197 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2020-12-22 08:46:24,832 WARN L197 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2020-12-22 08:46:25,579 WARN L197 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-12-22 08:46:26,473 WARN L197 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 152 [2020-12-22 08:46:26,864 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-22 08:46:27,242 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-22 08:46:29,944 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:46:30,426 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-12-22 08:46:30,667 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-12-22 08:46:30,932 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:46:31,630 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-12-22 08:46:31,890 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-22 08:46:32,614 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-22 08:46:32,852 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-22 08:46:33,132 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:46:47,695 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-22 08:47:09,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:09,750 INFO L93 Difference]: Finished difference Result 129943 states and 190734 transitions. [2020-12-22 08:47:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-12-22 08:47:09,751 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 88 [2020-12-22 08:47:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:09,952 INFO L225 Difference]: With dead ends: 129943 [2020-12-22 08:47:09,952 INFO L226 Difference]: Without dead ends: 127363 [2020-12-22 08:47:09,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1660 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=1016, Invalid=6294, Unknown=0, NotChecked=0, Total=7310 [2020-12-22 08:47:10,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127363 states. [2020-12-22 08:47:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127363 to 12468. [2020-12-22 08:47:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12468 states. [2020-12-22 08:47:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12468 states to 12468 states and 18236 transitions. [2020-12-22 08:47:14,836 INFO L78 Accepts]: Start accepts. Automaton has 12468 states and 18236 transitions. Word has length 88 [2020-12-22 08:47:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:14,836 INFO L481 AbstractCegarLoop]: Abstraction has 12468 states and 18236 transitions. [2020-12-22 08:47:14,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-22 08:47:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12468 states and 18236 transitions. [2020-12-22 08:47:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:47:14,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:14,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:14,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:47:14,839 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:14,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:14,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1342130604, now seen corresponding path program 1 times [2020-12-22 08:47:14,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:14,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564752715] [2020-12-22 08:47:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:17,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564752715] [2020-12-22 08:47:17,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:17,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-12-22 08:47:17,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037882388] [2020-12-22 08:47:17,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-22 08:47:17,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:17,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-22 08:47:17,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 08:47:17,209 INFO L87 Difference]: Start difference. First operand 12468 states and 18236 transitions. Second operand 33 states. [2020-12-22 08:47:17,765 WARN L197 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-12-22 08:47:18,373 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-22 08:47:18,586 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:47:18,802 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:47:19,027 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:47:19,247 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:47:19,805 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-22 08:47:20,145 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 08:47:20,570 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-12-22 08:47:20,999 WARN L197 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-12-22 08:47:21,484 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2020-12-22 08:47:22,002 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-12-22 08:47:22,627 WARN L197 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 120 [2020-12-22 08:47:23,283 WARN L197 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130 [2020-12-22 08:47:24,031 WARN L197 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144 [2020-12-22 08:47:24,436 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 08:47:24,766 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 08:47:25,047 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-12-22 08:47:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:42,444 INFO L93 Difference]: Finished difference Result 33670 states and 49312 transitions. [2020-12-22 08:47:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-12-22 08:47:42,445 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 88 [2020-12-22 08:47:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:42,472 INFO L225 Difference]: With dead ends: 33670 [2020-12-22 08:47:42,472 INFO L226 Difference]: Without dead ends: 29337 [2020-12-22 08:47:42,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=620, Invalid=3286, Unknown=0, NotChecked=0, Total=3906 [2020-12-22 08:47:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29337 states. [2020-12-22 08:47:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29337 to 12482. [2020-12-22 08:47:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12482 states. [2020-12-22 08:47:45,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12482 states to 12482 states and 18252 transitions. [2020-12-22 08:47:45,997 INFO L78 Accepts]: Start accepts. Automaton has 12482 states and 18252 transitions. Word has length 88 [2020-12-22 08:47:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:45,997 INFO L481 AbstractCegarLoop]: Abstraction has 12482 states and 18252 transitions. [2020-12-22 08:47:45,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-22 08:47:45,997 INFO L276 IsEmpty]: Start isEmpty. Operand 12482 states and 18252 transitions. [2020-12-22 08:47:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:47:45,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:45,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:47:45,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:47:45,999 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1496853068, now seen corresponding path program 1 times [2020-12-22 08:47:46,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:46,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572751569] [2020-12-22 08:47:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:47,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572751569] [2020-12-22 08:47:47,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:47,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-12-22 08:47:47,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583471768] [2020-12-22 08:47:47,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-22 08:47:47,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:47,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-22 08:47:47,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:47:47,967 INFO L87 Difference]: Start difference. First operand 12482 states and 18252 transitions. Second operand 32 states. [2020-12-22 08:47:48,431 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-12-22 08:47:49,011 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:47:49,207 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-12-22 08:47:49,413 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-12-22 08:47:49,627 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-22 08:47:49,836 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-12-22 08:47:50,366 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-12-22 08:47:50,631 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2020-12-22 08:47:50,955 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-12-22 08:47:51,289 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-12-22 08:47:51,683 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-12-22 08:47:52,087 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-12-22 08:47:52,575 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-12-22 08:47:53,066 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-12-22 08:47:53,657 WARN L197 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-12-22 08:47:53,952 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-12-22 08:47:54,245 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-12-22 08:47:54,488 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:47:55,242 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-12-22 08:47:55,763 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-12-22 08:47:57,243 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-22 08:47:58,014 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-22 08:48:09,547 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-12-22 08:48:31,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:31,064 INFO L93 Difference]: Finished difference Result 91761 states and 134603 transitions. [2020-12-22 08:48:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-12-22 08:48:31,067 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 88 [2020-12-22 08:48:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:31,155 INFO L225 Difference]: With dead ends: 91761 [2020-12-22 08:48:31,156 INFO L226 Difference]: Without dead ends: 87426 [2020-12-22 08:48:31,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=773, Invalid=4483, Unknown=0, NotChecked=0, Total=5256 [2020-12-22 08:48:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87426 states. [2020-12-22 08:48:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87426 to 12488. [2020-12-22 08:48:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12488 states. [2020-12-22 08:48:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12488 states to 12488 states and 18258 transitions. [2020-12-22 08:48:35,655 INFO L78 Accepts]: Start accepts. Automaton has 12488 states and 18258 transitions. Word has length 88 [2020-12-22 08:48:35,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:35,655 INFO L481 AbstractCegarLoop]: Abstraction has 12488 states and 18258 transitions. [2020-12-22 08:48:35,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-22 08:48:35,655 INFO L276 IsEmpty]: Start isEmpty. Operand 12488 states and 18258 transitions. [2020-12-22 08:48:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:48:35,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:35,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:48:35,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:48:35,657 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:35,658 INFO L82 PathProgramCache]: Analyzing trace with hash 673259307, now seen corresponding path program 1 times [2020-12-22 08:48:35,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:35,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111474149] [2020-12-22 08:48:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:36,960 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 08:48:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:39,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111474149] [2020-12-22 08:48:39,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:39,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-12-22 08:48:39,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135434019] [2020-12-22 08:48:39,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-22 08:48:39,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:39,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-22 08:48:39,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1024, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:48:39,183 INFO L87 Difference]: Start difference. First operand 12488 states and 18258 transitions. Second operand 34 states. [2020-12-22 08:48:40,020 WARN L197 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2020-12-22 08:48:40,544 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-22 08:48:40,764 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-22 08:48:41,037 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-12-22 08:48:41,314 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-12-22 08:48:41,603 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:48:41,951 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-12-22 08:48:42,304 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-22 08:48:43,135 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-12-22 08:48:43,611 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-12-22 08:48:44,209 WARN L197 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-12-22 08:48:44,831 WARN L197 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-12-22 08:48:45,586 WARN L197 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-12-22 08:48:46,391 WARN L197 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2020-12-22 08:48:47,359 WARN L197 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2020-12-22 08:48:48,370 WARN L197 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 137 [2020-12-22 08:48:49,544 WARN L197 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 150 [2020-12-22 08:48:50,079 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-12-22 08:48:50,617 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-12-22 08:48:50,883 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 08:48:51,396 WARN L197 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2020-12-22 08:48:51,999 WARN L197 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-12-22 08:48:52,227 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 08:48:52,932 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-12-22 08:48:53,448 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-12-22 08:48:53,841 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-12-22 08:48:54,468 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-12-22 08:48:54,849 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:48:55,475 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:48:56,292 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-22 08:48:56,686 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-12-22 08:48:57,260 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-12-22 08:48:57,781 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-12-22 08:49:15,386 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54