/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/product-lines/minepump_spec1_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:54:06,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:54:06,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:54:06,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:54:06,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:54:06,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:54:06,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:54:06,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:54:06,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:54:06,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:54:06,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:54:06,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:54:06,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:54:06,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:54:06,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:54:06,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:54:06,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:54:06,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:54:06,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:54:06,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:54:06,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:54:06,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:54:06,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:54:06,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:54:06,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:54:06,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:54:06,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:54:06,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:54:06,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:54:06,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:54:06,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:54:06,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:54:06,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:54:06,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:54:06,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:54:06,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:54:06,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:54:06,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:54:06,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:54:06,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:54:06,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:54:06,245 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:54:06,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:54:06,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:54:06,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:54:06,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:54:06,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:54:06,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:54:06,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:54:06,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:54:06,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:54:06,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:54:06,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:54:06,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:54:06,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:54:06,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:54:06,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:54:06,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:54:06,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:54:06,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:54:06,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:54:06,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:54:06,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:54:06,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:54:06,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:54:06,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:54:06,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:54:06,764 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:54:06,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-22 06:54:06,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1443db41d/6d633c47d64f4f64bd9156d185840835/FLAGe7ac8601f [2020-12-22 06:54:07,698 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:54:07,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-22 06:54:07,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1443db41d/6d633c47d64f4f64bd9156d185840835/FLAGe7ac8601f [2020-12-22 06:54:07,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1443db41d/6d633c47d64f4f64bd9156d185840835 [2020-12-22 06:54:07,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:54:07,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:54:07,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:07,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:54:07,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:54:07,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:07" (1/1) ... [2020-12-22 06:54:07,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0be25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:07, skipping insertion in model container [2020-12-22 06:54:07,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:07" (1/1) ... [2020-12-22 06:54:07,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:54:08,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:54:08,407 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/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-22 06:54:08,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:08,429 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:54:08,531 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/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-22 06:54:08,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:08,600 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:54:08,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08 WrapperNode [2020-12-22 06:54:08,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:08,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:08,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:54:08,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:54:08,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:08,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:54:08,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:54:08,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:54:08,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:08,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (1/1) ... [2020-12-22 06:54:09,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:54:09,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:54:09,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:54:09,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:54:09,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (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 06:54:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:54:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:54:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:54:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:54:10,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:54:10,865 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2020-12-22 06:54:10,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:10 BoogieIcfgContainer [2020-12-22 06:54:10,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:54:10,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:54:10,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:54:10,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:54:10,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:54:07" (1/3) ... [2020-12-22 06:54:10,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cb3707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:10, skipping insertion in model container [2020-12-22 06:54:10,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:08" (2/3) ... [2020-12-22 06:54:10,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cb3707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:10, skipping insertion in model container [2020-12-22 06:54:10,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:10" (3/3) ... [2020-12-22 06:54:10,876 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2020-12-22 06:54:10,883 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:54:10,888 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:54:10,907 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:54:10,982 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:54:10,982 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:54:10,982 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:54:10,983 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:54:10,987 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:54:10,987 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:54:10,987 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:54:10,988 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:54:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2020-12-22 06:54:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:54:11,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:11,027 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] [2020-12-22 06:54:11,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:11,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:11,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2020-12-22 06:54:11,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:11,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260986394] [2020-12-22 06:54:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:11,436 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 06:54:11,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260986394] [2020-12-22 06:54:11,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:11,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:11,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044646214] [2020-12-22 06:54:11,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:54:11,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:11,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:54:11,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:11,471 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2020-12-22 06:54:11,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:11,601 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2020-12-22 06:54:11,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:54:11,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-12-22 06:54:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:11,650 INFO L225 Difference]: With dead ends: 927 [2020-12-22 06:54:11,651 INFO L226 Difference]: Without dead ends: 466 [2020-12-22 06:54:11,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-12-22 06:54:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-12-22 06:54:11,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-12-22 06:54:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2020-12-22 06:54:11,795 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2020-12-22 06:54:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:11,795 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2020-12-22 06:54:11,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:54:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2020-12-22 06:54:11,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:54:11,798 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:11,799 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] [2020-12-22 06:54:11,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:54:11,800 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:11,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2020-12-22 06:54:11,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:11,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518375808] [2020-12-22 06:54:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:12,016 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 06:54:12,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518375808] [2020-12-22 06:54:12,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:12,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:12,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603631720] [2020-12-22 06:54:12,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:12,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:12,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:12,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:12,022 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 3 states. [2020-12-22 06:54:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:12,050 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2020-12-22 06:54:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:12,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:54:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:12,053 INFO L225 Difference]: With dead ends: 466 [2020-12-22 06:54:12,054 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 06:54:12,056 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 06:54:12,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 06:54:12,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-12-22 06:54:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-22 06:54:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2020-12-22 06:54:12,066 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2020-12-22 06:54:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:12,067 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2020-12-22 06:54:12,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2020-12-22 06:54:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:54:12,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:12,069 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] [2020-12-22 06:54:12,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:54:12,069 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:12,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2020-12-22 06:54:12,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:12,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177625777] [2020-12-22 06:54:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:12,206 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 06:54:12,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177625777] [2020-12-22 06:54:12,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:12,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:12,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838855016] [2020-12-22 06:54:12,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:12,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:12,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:12,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:12,210 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand 3 states. [2020-12-22 06:54:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:12,262 INFO L93 Difference]: Finished difference Result 490 states and 763 transitions. [2020-12-22 06:54:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:12,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-22 06:54:12,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:12,273 INFO L225 Difference]: With dead ends: 490 [2020-12-22 06:54:12,274 INFO L226 Difference]: Without dead ends: 331 [2020-12-22 06:54:12,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:54:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-12-22 06:54:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2020-12-22 06:54:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-12-22 06:54:12,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 508 transitions. [2020-12-22 06:54:12,313 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 508 transitions. Word has length 30 [2020-12-22 06:54:12,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:12,313 INFO L481 AbstractCegarLoop]: Abstraction has 327 states and 508 transitions. [2020-12-22 06:54:12,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 508 transitions. [2020-12-22 06:54:12,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:12,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:12,319 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] [2020-12-22 06:54:12,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:54:12,319 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:12,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2020-12-22 06:54:12,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:12,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500786924] [2020-12-22 06:54:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:12,427 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 06:54:12,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500786924] [2020-12-22 06:54:12,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:12,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:12,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809094878] [2020-12-22 06:54:12,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:12,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:12,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:12,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:12,431 INFO L87 Difference]: Start difference. First operand 327 states and 508 transitions. Second operand 3 states. [2020-12-22 06:54:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:12,584 INFO L93 Difference]: Finished difference Result 662 states and 1041 transitions. [2020-12-22 06:54:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:12,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 06:54:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:12,589 INFO L225 Difference]: With dead ends: 662 [2020-12-22 06:54:12,589 INFO L226 Difference]: Without dead ends: 348 [2020-12-22 06:54:12,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:54:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-12-22 06:54:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2020-12-22 06:54:12,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-22 06:54:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 526 transitions. [2020-12-22 06:54:12,619 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 526 transitions. Word has length 33 [2020-12-22 06:54:12,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:12,619 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 526 transitions. [2020-12-22 06:54:12,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:12,620 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 526 transitions. [2020-12-22 06:54:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:12,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:12,628 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] [2020-12-22 06:54:12,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:54:12,628 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:12,630 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2020-12-22 06:54:12,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:12,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474990576] [2020-12-22 06:54:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:12,791 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 06:54:12,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474990576] [2020-12-22 06:54:12,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:12,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:12,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881960404] [2020-12-22 06:54:12,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:12,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:12,794 INFO L87 Difference]: Start difference. First operand 346 states and 526 transitions. Second operand 5 states. [2020-12-22 06:54:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:13,058 INFO L93 Difference]: Finished difference Result 1934 states and 2999 transitions. [2020-12-22 06:54:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:54:13,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-22 06:54:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:13,068 INFO L225 Difference]: With dead ends: 1934 [2020-12-22 06:54:13,069 INFO L226 Difference]: Without dead ends: 1601 [2020-12-22 06:54:13,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-12-22 06:54:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 669. [2020-12-22 06:54:13,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-12-22 06:54:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1018 transitions. [2020-12-22 06:54:13,117 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1018 transitions. Word has length 33 [2020-12-22 06:54:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:13,117 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1018 transitions. [2020-12-22 06:54:13,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1018 transitions. [2020-12-22 06:54:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:54:13,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:13,119 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] [2020-12-22 06:54:13,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:54:13,119 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:13,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:13,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1927811083, now seen corresponding path program 1 times [2020-12-22 06:54:13,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:13,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107376993] [2020-12-22 06:54:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:13,193 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 06:54:13,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107376993] [2020-12-22 06:54:13,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:13,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:13,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589172187] [2020-12-22 06:54:13,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:13,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:13,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:13,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:13,196 INFO L87 Difference]: Start difference. First operand 669 states and 1018 transitions. Second operand 5 states. [2020-12-22 06:54:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:13,584 INFO L93 Difference]: Finished difference Result 2147 states and 3281 transitions. [2020-12-22 06:54:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:54:13,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-22 06:54:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:13,598 INFO L225 Difference]: With dead ends: 2147 [2020-12-22 06:54:13,599 INFO L226 Difference]: Without dead ends: 2145 [2020-12-22 06:54:13,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:13,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-12-22 06:54:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 669. [2020-12-22 06:54:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-12-22 06:54:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1016 transitions. [2020-12-22 06:54:13,670 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1016 transitions. Word has length 34 [2020-12-22 06:54:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:13,671 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1016 transitions. [2020-12-22 06:54:13,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1016 transitions. [2020-12-22 06:54:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:54:13,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:13,674 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] [2020-12-22 06:54:13,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:54:13,675 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:13,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1912385192, now seen corresponding path program 1 times [2020-12-22 06:54:13,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:13,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697543186] [2020-12-22 06:54:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:13,783 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 06:54:13,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697543186] [2020-12-22 06:54:13,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:13,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:13,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452560632] [2020-12-22 06:54:13,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:13,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:13,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:13,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:13,788 INFO L87 Difference]: Start difference. First operand 669 states and 1016 transitions. Second operand 5 states. [2020-12-22 06:54:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:14,021 INFO L93 Difference]: Finished difference Result 1677 states and 2527 transitions. [2020-12-22 06:54:14,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:14,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-22 06:54:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:14,027 INFO L225 Difference]: With dead ends: 1677 [2020-12-22 06:54:14,027 INFO L226 Difference]: Without dead ends: 1021 [2020-12-22 06:54:14,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:54:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-12-22 06:54:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 765. [2020-12-22 06:54:14,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-12-22 06:54:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1112 transitions. [2020-12-22 06:54:14,091 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1112 transitions. Word has length 42 [2020-12-22 06:54:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:14,093 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 1112 transitions. [2020-12-22 06:54:14,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1112 transitions. [2020-12-22 06:54:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:54:14,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:14,096 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] [2020-12-22 06:54:14,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:54:14,096 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:14,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:14,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1681517526, now seen corresponding path program 1 times [2020-12-22 06:54:14,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:14,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167303387] [2020-12-22 06:54:14,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:14,195 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 06:54:14,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167303387] [2020-12-22 06:54:14,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:14,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:14,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416645328] [2020-12-22 06:54:14,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:54:14,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:14,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:54:14,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:54:14,199 INFO L87 Difference]: Start difference. First operand 765 states and 1112 transitions. Second operand 4 states. [2020-12-22 06:54:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:14,395 INFO L93 Difference]: Finished difference Result 1813 states and 2601 transitions. [2020-12-22 06:54:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:54:14,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-12-22 06:54:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:14,401 INFO L225 Difference]: With dead ends: 1813 [2020-12-22 06:54:14,401 INFO L226 Difference]: Without dead ends: 1061 [2020-12-22 06:54:14,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-12-22 06:54:14,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 829. [2020-12-22 06:54:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-12-22 06:54:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1176 transitions. [2020-12-22 06:54:14,456 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1176 transitions. Word has length 42 [2020-12-22 06:54:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:14,456 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1176 transitions. [2020-12-22 06:54:14,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:54:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1176 transitions. [2020-12-22 06:54:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:54:14,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:14,458 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] [2020-12-22 06:54:14,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:54:14,459 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash 2026643756, now seen corresponding path program 1 times [2020-12-22 06:54:14,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:14,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822094017] [2020-12-22 06:54:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:14,539 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 06:54:14,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822094017] [2020-12-22 06:54:14,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:14,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:14,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352172352] [2020-12-22 06:54:14,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:14,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:14,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:14,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:14,550 INFO L87 Difference]: Start difference. First operand 829 states and 1176 transitions. Second operand 3 states. [2020-12-22 06:54:14,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:14,678 INFO L93 Difference]: Finished difference Result 1877 states and 2649 transitions. [2020-12-22 06:54:14,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:14,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-22 06:54:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:14,685 INFO L225 Difference]: With dead ends: 1877 [2020-12-22 06:54:14,686 INFO L226 Difference]: Without dead ends: 1061 [2020-12-22 06:54:14,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:54:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-12-22 06:54:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1061. [2020-12-22 06:54:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-12-22 06:54:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1466 transitions. [2020-12-22 06:54:14,773 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1466 transitions. Word has length 42 [2020-12-22 06:54:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:14,777 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1466 transitions. [2020-12-22 06:54:14,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1466 transitions. [2020-12-22 06:54:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 06:54:14,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:14,782 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] [2020-12-22 06:54:14,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:54:14,783 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:14,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1499020087, now seen corresponding path program 1 times [2020-12-22 06:54:14,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:14,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775139212] [2020-12-22 06:54:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:14,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:14,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:15,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:54:15,061 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:54:15,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:54:15,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:54:15 BoogieIcfgContainer [2020-12-22 06:54:15,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:54:15,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:54:15,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:54:15,249 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:54:15,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:10" (3/4) ... [2020-12-22 06:54:15,251 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:54:15,365 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec1_productSimulator.cil.c-witness.graphml [2020-12-22 06:54:15,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:54:15,367 INFO L168 Benchmark]: Toolchain (without parser) took 7438.20 ms. Allocated memory was 162.5 MB in the beginning and 234.9 MB in the end (delta: 72.4 MB). Free memory was 136.4 MB in the beginning and 102.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 107.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,368 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 162.5 MB. Free memory was 134.3 MB in the beginning and 134.2 MB in the end (delta: 77.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:54:15,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.29 ms. Allocated memory is still 162.5 MB. Free memory was 136.3 MB in the beginning and 112.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.11 ms. Allocated memory is still 162.5 MB. Free memory was 112.1 MB in the beginning and 134.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,369 INFO L168 Benchmark]: Boogie Preprocessor took 178.61 ms. Allocated memory is still 162.5 MB. Free memory was 134.5 MB in the beginning and 127.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,369 INFO L168 Benchmark]: RCFGBuilder took 1847.51 ms. Allocated memory is still 162.5 MB. Free memory was 127.2 MB in the beginning and 58.2 MB in the end (delta: 69.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,370 INFO L168 Benchmark]: TraceAbstraction took 4378.93 ms. Allocated memory was 162.5 MB in the beginning and 234.9 MB in the end (delta: 72.4 MB). Free memory was 57.7 MB in the beginning and 125.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,370 INFO L168 Benchmark]: Witness Printer took 116.62 ms. Allocated memory is still 234.9 MB. Free memory was 125.1 MB in the beginning and 102.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:15,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 162.5 MB. Free memory was 134.3 MB in the beginning and 134.2 MB in the end (delta: 77.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 669.29 ms. Allocated memory is still 162.5 MB. Free memory was 136.3 MB in the beginning and 112.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 233.11 ms. Allocated memory is still 162.5 MB. Free memory was 112.1 MB in the beginning and 134.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 178.61 ms. Allocated memory is still 162.5 MB. Free memory was 134.5 MB in the beginning and 127.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1847.51 ms. Allocated memory is still 162.5 MB. Free memory was 127.2 MB in the beginning and 58.2 MB in the end (delta: 69.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4378.93 ms. Allocated memory was 162.5 MB in the beginning and 234.9 MB in the end (delta: 72.4 MB). Free memory was 57.7 MB in the beginning and 125.1 MB in the end (delta: -67.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * Witness Printer took 116.62 ms. Allocated memory is still 234.9 MB. Free memory was 125.1 MB in the beginning and 102.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L1028] int cleanupTimeShifts = 4; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1101] int retValue_acc ; [L1102] int tmp ; [L874] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] __SELECTED_FEATURE_base = 1 [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] __SELECTED_FEATURE_highWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] __SELECTED_FEATURE_lowWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] __SELECTED_FEATURE_methaneQuery = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] __SELECTED_FEATURE_methaneAlarm = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] __SELECTED_FEATURE_stopCommand = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] __SELECTED_FEATURE_startCommand = select_one() [L879] int retValue_acc ; [L882] retValue_acc = __SELECTED_FEATURE_base [L883] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1108] tmp = valid_product() [L1110] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] COND TRUE waterLevel < 2 [L935] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L946] COND FALSE !(\read(methaneLevelCritical)) [L949] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L106] tmp___1 = __VERIFIER_nondet_int() [L108] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L150] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L207] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L179] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L413] int retValue_acc ; [L414] int tmp ; [L415] int tmp___0 ; [L996] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L999] COND FALSE !(waterLevel < 2) [L1003] retValue_acc = 0 [L1004] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp = isHighWaterSensorDry() [L421] COND FALSE !(\read(tmp)) [L424] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] retValue_acc = tmp___0 [L427] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp = isHighWaterLevel() [L186] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L335] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L310] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L890] int tmp ; [L891] int tmp___0 ; [L955] int retValue_acc ; [L958] retValue_acc = methaneLevelCritical [L959] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND TRUE \read(tmp) [L368] int retValue_acc ; [L371] retValue_acc = pumpRunning [L372] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L899] tmp___0 = isPumpRunning() [L901] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L1023] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=47, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 470 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3078 SDtfs, 3156 SDslu, 3657 SDs, 0 SdLazy, 507 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1061occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 2902 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 19688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...