java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:58:35,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:58:35,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:58:35,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:58:35,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:58:35,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:58:35,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:58:35,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:58:35,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:58:35,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:58:35,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:58:35,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:58:35,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:58:35,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:58:35,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:58:35,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:58:35,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:58:35,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:58:35,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:58:35,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:58:35,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:58:35,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:58:35,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:58:35,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:58:35,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:58:35,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:58:35,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:58:35,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:58:35,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:58:35,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:58:35,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:58:35,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:58:35,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:58:35,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:58:35,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:58:35,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:58:35,959 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:58:35,988 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:58:35,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:58:35,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:58:35,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:58:35,990 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:58:35,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:58:35,995 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:58:35,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:58:35,997 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:58:35,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:58:36,000 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:58:36,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:58:36,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:58:36,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:58:36,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:58:36,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:58:36,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:58:36,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:58:36,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:58:36,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:58:36,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:58:36,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:58:36,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:58:36,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-14 23:58:36,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:58:36,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:58:36,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:58:36,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:58:36,328 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:58:36,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label29.c [2019-10-14 23:58:36,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9f4153/30397193ec18470986dfdcf1a330b850/FLAG4a84e6011 [2019-10-14 23:58:37,064 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:58:37,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label29.c [2019-10-14 23:58:37,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9f4153/30397193ec18470986dfdcf1a330b850/FLAG4a84e6011 [2019-10-14 23:58:37,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9f4153/30397193ec18470986dfdcf1a330b850 [2019-10-14 23:58:37,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:58:37,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:58:37,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:58:37,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:58:37,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:58:37,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:37" (1/1) ... [2019-10-14 23:58:37,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5a7a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:37, skipping insertion in model container [2019-10-14 23:58:37,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:58:37" (1/1) ... [2019-10-14 23:58:37,271 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:58:37,352 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:58:38,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:58:38,217 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:58:38,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:58:38,495 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:58:38,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38 WrapperNode [2019-10-14 23:58:38,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:58:38,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:58:38,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:58:38,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:58:38,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (1/1) ... [2019-10-14 23:58:38,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:58:38,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:58:38,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:58:38,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:58:38,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (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 [2019-10-14 23:58:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:58:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:58:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-14 23:58:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:58:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-14 23:58:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:58:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:58:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:58:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:58:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:58:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:58:40,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:58:40,850 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:58:40,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:40 BoogieIcfgContainer [2019-10-14 23:58:40,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:58:40,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:58:40,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:58:40,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:58:40,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:58:37" (1/3) ... [2019-10-14 23:58:40,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315790b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:40, skipping insertion in model container [2019-10-14 23:58:40,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:58:38" (2/3) ... [2019-10-14 23:58:40,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315790b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:58:40, skipping insertion in model container [2019-10-14 23:58:40,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:58:40" (3/3) ... [2019-10-14 23:58:40,870 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label29.c [2019-10-14 23:58:40,881 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:58:40,893 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:58:40,905 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:58:40,948 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:58:40,949 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:58:40,950 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:58:40,950 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:58:40,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:58:40,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:58:40,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:58:40,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:58:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2019-10-14 23:58:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-14 23:58:41,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:41,026 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:41,028 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:41,035 INFO L82 PathProgramCache]: Analyzing trace with hash -30261395, now seen corresponding path program 1 times [2019-10-14 23:58:41,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:41,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329301479] [2019-10-14 23:58:41,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:41,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:41,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:58:41,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329301479] [2019-10-14 23:58:41,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:58:41,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:58:41,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229096428] [2019-10-14 23:58:41,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:58:41,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:41,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:58:41,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:58:41,846 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 3 states. [2019-10-14 23:58:43,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:43,185 INFO L93 Difference]: Finished difference Result 835 states and 1476 transitions. [2019-10-14 23:58:43,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:58:43,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-14 23:58:43,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:43,228 INFO L225 Difference]: With dead ends: 835 [2019-10-14 23:58:43,228 INFO L226 Difference]: Without dead ends: 462 [2019-10-14 23:58:43,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:58:43,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2019-10-14 23:58:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 460. [2019-10-14 23:58:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-14 23:58:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 739 transitions. [2019-10-14 23:58:43,366 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 739 transitions. Word has length 184 [2019-10-14 23:58:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:43,368 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 739 transitions. [2019-10-14 23:58:43,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:58:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 739 transitions. [2019-10-14 23:58:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-14 23:58:43,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:43,374 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:43,374 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:43,375 INFO L82 PathProgramCache]: Analyzing trace with hash 451298250, now seen corresponding path program 1 times [2019-10-14 23:58:43,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:43,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502787298] [2019-10-14 23:58:43,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:43,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:43,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:58:43,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502787298] [2019-10-14 23:58:43,669 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:58:43,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:58:43,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792741124] [2019-10-14 23:58:43,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:58:43,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:43,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:58:43,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:58:43,674 INFO L87 Difference]: Start difference. First operand 460 states and 739 transitions. Second operand 6 states. [2019-10-14 23:58:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:45,400 INFO L93 Difference]: Finished difference Result 1391 states and 2302 transitions. [2019-10-14 23:58:45,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:58:45,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2019-10-14 23:58:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:45,409 INFO L225 Difference]: With dead ends: 1391 [2019-10-14 23:58:45,410 INFO L226 Difference]: Without dead ends: 937 [2019-10-14 23:58:45,412 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:58:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2019-10-14 23:58:45,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 899. [2019-10-14 23:58:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-14 23:58:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1431 transitions. [2019-10-14 23:58:45,468 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1431 transitions. Word has length 193 [2019-10-14 23:58:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:45,468 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1431 transitions. [2019-10-14 23:58:45,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:58:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1431 transitions. [2019-10-14 23:58:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-14 23:58:45,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:45,474 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:45,474 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:45,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash -82776871, now seen corresponding path program 1 times [2019-10-14 23:58:45,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:45,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705880064] [2019-10-14 23:58:45,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:45,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:45,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:58:45,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705880064] [2019-10-14 23:58:45,710 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:58:45,710 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:58:45,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205315952] [2019-10-14 23:58:45,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:58:45,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:45,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:58:45,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:58:45,713 INFO L87 Difference]: Start difference. First operand 899 states and 1431 transitions. Second operand 3 states. [2019-10-14 23:58:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:46,899 INFO L93 Difference]: Finished difference Result 2649 states and 4306 transitions. [2019-10-14 23:58:46,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:58:46,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-14 23:58:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:46,912 INFO L225 Difference]: With dead ends: 2649 [2019-10-14 23:58:46,913 INFO L226 Difference]: Without dead ends: 1756 [2019-10-14 23:58:46,917 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:58:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2019-10-14 23:58:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1736. [2019-10-14 23:58:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1736 states. [2019-10-14 23:58:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2761 transitions. [2019-10-14 23:58:46,977 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2761 transitions. Word has length 196 [2019-10-14 23:58:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:46,977 INFO L462 AbstractCegarLoop]: Abstraction has 1736 states and 2761 transitions. [2019-10-14 23:58:46,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:58:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2761 transitions. [2019-10-14 23:58:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-14 23:58:46,984 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:46,984 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:46,985 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1936411885, now seen corresponding path program 1 times [2019-10-14 23:58:46,985 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:46,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931503527] [2019-10-14 23:58:46,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:46,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:46,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-14 23:58:47,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931503527] [2019-10-14 23:58:47,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792926799] [2019-10-14 23:58:47,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:47,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-14 23:58:47,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:58:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:58:47,601 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:58:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-14 23:58:47,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:58:47,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2019-10-14 23:58:47,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113150072] [2019-10-14 23:58:47,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:58:47,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:47,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:58:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:58:47,789 INFO L87 Difference]: Start difference. First operand 1736 states and 2761 transitions. Second operand 5 states. [2019-10-14 23:58:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:49,195 INFO L93 Difference]: Finished difference Result 5247 states and 8970 transitions. [2019-10-14 23:58:49,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:58:49,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-14 23:58:49,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:49,229 INFO L225 Difference]: With dead ends: 5247 [2019-10-14 23:58:49,229 INFO L226 Difference]: Without dead ends: 3517 [2019-10-14 23:58:49,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 400 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:58:49,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2019-10-14 23:58:49,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3459. [2019-10-14 23:58:49,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2019-10-14 23:58:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5409 transitions. [2019-10-14 23:58:49,492 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5409 transitions. Word has length 203 [2019-10-14 23:58:49,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:49,492 INFO L462 AbstractCegarLoop]: Abstraction has 3459 states and 5409 transitions. [2019-10-14 23:58:49,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:58:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5409 transitions. [2019-10-14 23:58:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-14 23:58:49,508 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:49,508 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:49,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:49,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:49,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:49,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1189283813, now seen corresponding path program 1 times [2019-10-14 23:58:49,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:49,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867809607] [2019-10-14 23:58:49,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:49,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:49,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:58:49,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867809607] [2019-10-14 23:58:49,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601753775] [2019-10-14 23:58:49,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:50,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:58:50,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:58:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-14 23:58:50,259 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:58:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-14 23:58:50,469 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:58:50,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2019-10-14 23:58:50,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244429684] [2019-10-14 23:58:50,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:58:50,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:50,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:58:50,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:58:50,473 INFO L87 Difference]: Start difference. First operand 3459 states and 5409 transitions. Second operand 5 states. [2019-10-14 23:58:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:51,078 INFO L93 Difference]: Finished difference Result 10372 states and 16445 transitions. [2019-10-14 23:58:51,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:58:51,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2019-10-14 23:58:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:51,125 INFO L225 Difference]: With dead ends: 10372 [2019-10-14 23:58:51,126 INFO L226 Difference]: Without dead ends: 6919 [2019-10-14 23:58:51,138 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 420 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:58:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6919 states. [2019-10-14 23:58:51,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6919 to 6911. [2019-10-14 23:58:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6911 states. [2019-10-14 23:58:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 10978 transitions. [2019-10-14 23:58:51,393 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 10978 transitions. Word has length 214 [2019-10-14 23:58:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:51,394 INFO L462 AbstractCegarLoop]: Abstraction has 6911 states and 10978 transitions. [2019-10-14 23:58:51,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:58:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 10978 transitions. [2019-10-14 23:58:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-14 23:58:51,416 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:51,416 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:51,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:51,621 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:51,622 INFO L82 PathProgramCache]: Analyzing trace with hash 381120597, now seen corresponding path program 1 times [2019-10-14 23:58:51,622 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:51,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695968307] [2019-10-14 23:58:51,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:51,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:51,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:58:51,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695968307] [2019-10-14 23:58:51,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522094018] [2019-10-14 23:58:51,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:52,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:58:52,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:58:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-14 23:58:52,147 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:58:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-14 23:58:52,352 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:58:52,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-10-14 23:58:52,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999655090] [2019-10-14 23:58:52,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:58:52,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:58:52,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:58:52,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:58:52,363 INFO L87 Difference]: Start difference. First operand 6911 states and 10978 transitions. Second operand 3 states. [2019-10-14 23:58:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:58:53,451 INFO L93 Difference]: Finished difference Result 20351 states and 33174 transitions. [2019-10-14 23:58:53,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:58:53,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-14 23:58:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:58:53,579 INFO L225 Difference]: With dead ends: 20351 [2019-10-14 23:58:53,580 INFO L226 Difference]: Without dead ends: 13446 [2019-10-14 23:58:53,609 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 442 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:58:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2019-10-14 23:58:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 13400. [2019-10-14 23:58:53,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13400 states. [2019-10-14 23:58:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13400 states to 13400 states and 21710 transitions. [2019-10-14 23:58:54,031 INFO L78 Accepts]: Start accepts. Automaton has 13400 states and 21710 transitions. Word has length 222 [2019-10-14 23:58:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:58:54,033 INFO L462 AbstractCegarLoop]: Abstraction has 13400 states and 21710 transitions. [2019-10-14 23:58:54,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:58:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 13400 states and 21710 transitions. [2019-10-14 23:58:54,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-14 23:58:54,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:58:54,081 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:58:54,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:54,294 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:58:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:58:54,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1316587245, now seen corresponding path program 1 times [2019-10-14 23:58:54,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:58:54,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496807710] [2019-10-14 23:58:54,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:54,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:58:54,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:58:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:54,554 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-10-14 23:58:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:58:54,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496807710] [2019-10-14 23:58:54,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663882057] [2019-10-14 23:58:54,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:58:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:58:54,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:58:54,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:58:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:58:54,933 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:58:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:58:55,050 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [32303474] [2019-10-14 23:58:55,058 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 229 [2019-10-14 23:58:55,134 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:58:55,135 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)