/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_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:03,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:03,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:03,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:03,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:03,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:03,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:03,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:03,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:03,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:03,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:03,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:03,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:03,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:03,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:03,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:03,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:03,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:03,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:03,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:03,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:03,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:03,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:03,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:03,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:03,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:03,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:03,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:03,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:03,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:03,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:03,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:03,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:03,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:03,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:03,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:03,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:03,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:03,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:03,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:03,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:03,176 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:03,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:03,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:03,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:03,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:03,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:03,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:03,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:03,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:03,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:03,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:03,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:03,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:03,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:03,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:03,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:03,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:03,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:03,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:03,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:03,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:03,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:03,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:03,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:03,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:03,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:03,609 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:03,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2020-12-22 06:56:03,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404d72778/c0308f02fd234db1b6b136d6529ec06d/FLAGcda7ef0ef [2020-12-22 06:56:04,511 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:04,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2020-12-22 06:56:04,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404d72778/c0308f02fd234db1b6b136d6529ec06d/FLAGcda7ef0ef [2020-12-22 06:56:04,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404d72778/c0308f02fd234db1b6b136d6529ec06d [2020-12-22 06:56:04,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:04,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:04,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:04,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:04,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:04,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd95d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04, skipping insertion in model container [2020-12-22 06:56:04,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:04,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:05,281 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_spec3_productSimulator.cil.c[19705,19718] [2020-12-22 06:56:05,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:05,323 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:05,474 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_spec3_productSimulator.cil.c[19705,19718] [2020-12-22 06:56:05,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:05,559 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:05,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05 WrapperNode [2020-12-22 06:56:05,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:05,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:05,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:05,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:05,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:05,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:05,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:05,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:05,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (1/1) ... [2020-12-22 06:56:05,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:05,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:05,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:05,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:05,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (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 06:56:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:07,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:07,641 INFO L299 CfgBuilder]: Removed 906 assume(true) statements. [2020-12-22 06:56:07,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:07 BoogieIcfgContainer [2020-12-22 06:56:07,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:07,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:07,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:07,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:07,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:04" (1/3) ... [2020-12-22 06:56:07,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594464d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:07, skipping insertion in model container [2020-12-22 06:56:07,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:05" (2/3) ... [2020-12-22 06:56:07,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594464d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:07, skipping insertion in model container [2020-12-22 06:56:07,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:07" (3/3) ... [2020-12-22 06:56:07,653 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-12-22 06:56:07,660 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:07,665 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:07,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:07,716 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:07,716 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:07,716 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:07,716 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:07,717 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:07,717 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:07,717 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:07,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states. [2020-12-22 06:56:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:56:07,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:07,754 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] [2020-12-22 06:56:07,754 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:07,761 INFO L82 PathProgramCache]: Analyzing trace with hash 603642961, now seen corresponding path program 1 times [2020-12-22 06:56:07,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:07,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461037765] [2020-12-22 06:56:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:08,196 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 06:56:08,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461037765] [2020-12-22 06:56:08,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:08,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:08,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478778850] [2020-12-22 06:56:08,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:08,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:08,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:08,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:08,222 INFO L87 Difference]: Start difference. First operand 476 states. Second operand 2 states. [2020-12-22 06:56:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:08,302 INFO L93 Difference]: Finished difference Result 939 states and 1472 transitions. [2020-12-22 06:56:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:08,304 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-12-22 06:56:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:08,332 INFO L225 Difference]: With dead ends: 939 [2020-12-22 06:56:08,332 INFO L226 Difference]: Without dead ends: 472 [2020-12-22 06:56:08,345 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 06:56:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-12-22 06:56:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2020-12-22 06:56:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-12-22 06:56:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 731 transitions. [2020-12-22 06:56:08,452 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 731 transitions. Word has length 25 [2020-12-22 06:56:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:08,452 INFO L481 AbstractCegarLoop]: Abstraction has 472 states and 731 transitions. [2020-12-22 06:56:08,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:08,453 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 731 transitions. [2020-12-22 06:56:08,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:56:08,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:08,455 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] [2020-12-22 06:56:08,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:08,455 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:08,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1179320613, now seen corresponding path program 1 times [2020-12-22 06:56:08,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:08,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567212191] [2020-12-22 06:56:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:08,609 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 06:56:08,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567212191] [2020-12-22 06:56:08,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:08,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:08,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64347213] [2020-12-22 06:56:08,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:08,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:08,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:08,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:08,614 INFO L87 Difference]: Start difference. First operand 472 states and 731 transitions. Second operand 3 states. [2020-12-22 06:56:08,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:08,640 INFO L93 Difference]: Finished difference Result 472 states and 731 transitions. [2020-12-22 06:56:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:08,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 06:56:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:08,643 INFO L225 Difference]: With dead ends: 472 [2020-12-22 06:56:08,643 INFO L226 Difference]: Without dead ends: 174 [2020-12-22 06:56:08,644 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 06:56:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-22 06:56:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-12-22 06:56:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-22 06:56:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2020-12-22 06:56:08,655 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 26 [2020-12-22 06:56:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:08,656 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2020-12-22 06:56:08,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2020-12-22 06:56:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:56:08,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:08,658 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] [2020-12-22 06:56:08,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:08,658 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:08,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:08,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1733739639, now seen corresponding path program 1 times [2020-12-22 06:56:08,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:08,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683405453] [2020-12-22 06:56:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:08,790 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 06:56:08,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683405453] [2020-12-22 06:56:08,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:08,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:56:08,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952152980] [2020-12-22 06:56:08,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:56:08,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:08,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:56:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:08,797 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand 7 states. [2020-12-22 06:56:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,061 INFO L93 Difference]: Finished difference Result 684 states and 1066 transitions. [2020-12-22 06:56:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:56:09,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-12-22 06:56:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,068 INFO L225 Difference]: With dead ends: 684 [2020-12-22 06:56:09,068 INFO L226 Difference]: Without dead ends: 523 [2020-12-22 06:56:09,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-22 06:56:09,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-12-22 06:56:09,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 197. [2020-12-22 06:56:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-12-22 06:56:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 302 transitions. [2020-12-22 06:56:09,125 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 302 transitions. Word has length 32 [2020-12-22 06:56:09,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,126 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 302 transitions. [2020-12-22 06:56:09,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:56:09,127 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 302 transitions. [2020-12-22 06:56:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 06:56:09,135 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,135 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] [2020-12-22 06:56:09,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:09,135 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,137 INFO L82 PathProgramCache]: Analyzing trace with hash -614678817, now seen corresponding path program 1 times [2020-12-22 06:56:09,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044666359] [2020-12-22 06:56:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:09,261 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 06:56:09,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044666359] [2020-12-22 06:56:09,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:09,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:09,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655355801] [2020-12-22 06:56:09,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:09,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:09,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:09,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:09,265 INFO L87 Difference]: Start difference. First operand 197 states and 302 transitions. Second operand 3 states. [2020-12-22 06:56:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,357 INFO L93 Difference]: Finished difference Result 394 states and 612 transitions. [2020-12-22 06:56:09,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:09,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-22 06:56:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,360 INFO L225 Difference]: With dead ends: 394 [2020-12-22 06:56:09,361 INFO L226 Difference]: Without dead ends: 210 [2020-12-22 06:56:09,362 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 06:56:09,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-12-22 06:56:09,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2020-12-22 06:56:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-12-22 06:56:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 311 transitions. [2020-12-22 06:56:09,380 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 311 transitions. Word has length 35 [2020-12-22 06:56:09,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,381 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 311 transitions. [2020-12-22 06:56:09,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2020-12-22 06:56:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 06:56:09,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,389 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] [2020-12-22 06:56:09,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:09,390 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,391 INFO L82 PathProgramCache]: Analyzing trace with hash -227430660, now seen corresponding path program 1 times [2020-12-22 06:56:09,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890033606] [2020-12-22 06:56:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:09,527 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 06:56:09,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890033606] [2020-12-22 06:56:09,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:09,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:09,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062486153] [2020-12-22 06:56:09,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:09,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:09,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:09,530 INFO L87 Difference]: Start difference. First operand 208 states and 311 transitions. Second operand 5 states. [2020-12-22 06:56:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,738 INFO L93 Difference]: Finished difference Result 1077 states and 1644 transitions. [2020-12-22 06:56:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:56:09,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-12-22 06:56:09,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,744 INFO L225 Difference]: With dead ends: 1077 [2020-12-22 06:56:09,744 INFO L226 Difference]: Without dead ends: 882 [2020-12-22 06:56:09,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-12-22 06:56:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 325. [2020-12-22 06:56:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-12-22 06:56:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 478 transitions. [2020-12-22 06:56:09,802 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 478 transitions. Word has length 35 [2020-12-22 06:56:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,804 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 478 transitions. [2020-12-22 06:56:09,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 478 transitions. [2020-12-22 06:56:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 06:56:09,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,807 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] [2020-12-22 06:56:09,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:09,808 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash 223425023, now seen corresponding path program 1 times [2020-12-22 06:56:09,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186893208] [2020-12-22 06:56:09,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:56:09,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:56:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:56:10,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:56:10,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:56:10,083 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:56:10,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:10,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:10 BoogieIcfgContainer [2020-12-22 06:56:10,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:10,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:10,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:10,209 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:10,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:07" (3/4) ... [2020-12-22 06:56:10,212 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:56:10,328 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_productSimulator.cil.c-witness.graphml [2020-12-22 06:56:10,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:10,334 INFO L168 Benchmark]: Toolchain (without parser) took 5509.23 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 125.4 MB in the beginning and 101.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,334 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:10,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 132.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 177.19 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 120.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,336 INFO L168 Benchmark]: Boogie Preprocessor took 138.71 ms. Allocated memory is still 151.0 MB. Free memory was 120.1 MB in the beginning and 112.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,339 INFO L168 Benchmark]: RCFGBuilder took 1764.47 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 112.7 MB in the beginning and 151.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 84.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,340 INFO L168 Benchmark]: TraceAbstraction took 2561.93 ms. Allocated memory is still 196.1 MB. Free memory was 150.6 MB in the beginning and 119.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,340 INFO L168 Benchmark]: Witness Printer took 121.57 ms. Allocated memory is still 196.1 MB. Free memory was 119.9 MB in the beginning and 101.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:10,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 735.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 132.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 177.19 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 120.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.71 ms. Allocated memory is still 151.0 MB. Free memory was 120.1 MB in the beginning and 112.7 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1764.47 ms. Allocated memory was 151.0 MB in the beginning and 196.1 MB in the end (delta: 45.1 MB). Free memory was 112.7 MB in the beginning and 151.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 84.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2561.93 ms. Allocated memory is still 196.1 MB. Free memory was 150.6 MB in the beginning and 119.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 8.0 GB. * Witness Printer took 121.57 ms. Allocated memory is still 196.1 MB. Free memory was 119.9 MB in the beginning and 101.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1024]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L512] int __SELECTED_FEATURE_base ; [L513] int __SELECTED_FEATURE_highWaterSensor ; [L514] int __SELECTED_FEATURE_lowWaterSensor ; [L515] int __SELECTED_FEATURE_methaneQuery ; [L516] int __SELECTED_FEATURE_methaneAlarm ; [L517] int __SELECTED_FEATURE_stopCommand ; [L518] int __SELECTED_FEATURE_startCommand ; [L519] int __GUIDSL_ROOT_PRODUCTION ; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L1029] int waterLevel = 1; [L1030] int methaneLevelCritical = 0; 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] [L489] int retValue_acc ; [L490] int tmp ; [L970] __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] [L955] __SELECTED_FEATURE_base = 1 [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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] [L956] __SELECTED_FEATURE_highWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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] [L957] __SELECTED_FEATURE_lowWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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] [L958] __SELECTED_FEATURE_methaneQuery = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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] [L959] __SELECTED_FEATURE_methaneAlarm = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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] [L960] __SELECTED_FEATURE_stopCommand = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L961] __SELECTED_FEATURE_startCommand = select_one() [L975] int retValue_acc ; [L978] retValue_acc = __SELECTED_FEATURE_base [L979] 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] COND TRUE 1 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] COND TRUE splverifierCounter < 4 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] tmp = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1047] COND TRUE waterLevel < 2 [L1048] waterLevel = waterLevel + 1 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND FALSE !(\read(tmp___2)) [L572] tmp___1 = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp___1) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] COND TRUE \read(__SELECTED_FEATURE_stopCommand) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L919] COND FALSE !(\read(pumpRunning)) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L926] systemActive = 0 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L615] COND FALSE !(\read(pumpRunning)) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L622] COND FALSE !(\read(systemActive)) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L987] int tmp ; [L988] int tmp___0 ; [L989] int tmp___1 ; [L1068] int retValue_acc ; [L1071] retValue_acc = methaneLevelCritical [L1072] 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1100] int retValue_acc ; [L1103] retValue_acc = waterLevel [L1104] 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L999] tmp___0 = getWaterLevel() [L1001] COND TRUE tmp___0 == 2 [L833] int retValue_acc ; [L836] retValue_acc = pumpRunning [L837] 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1003] tmp___1 = isPumpRunning() [L1005] COND FALSE !(\read(tmp___1)) 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1024] reach_error() 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=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 476 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1932 SDtfs, 2949 SDslu, 3056 SDs, 0 SdLazy, 163 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=476occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 885 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 10044 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...