/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_spec4_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:15,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:15,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:15,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:15,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:15,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:15,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:15,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:15,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:15,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:15,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:15,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:15,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:15,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:15,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:15,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:15,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:15,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:15,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:15,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:15,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:16,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:16,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:16,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:16,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:56:16,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:56:16,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:56:16,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:56:16,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:56:16,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:56:16,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:16,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:16,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:16,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:16,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:16,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:16,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:16,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:16,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:16,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:16,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:16,026 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:16,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:16,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:16,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:16,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:16,053 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:16,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:16,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:16,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:16,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:16,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:16,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:16,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:16,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:16,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:16,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:16,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:16,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:16,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:16,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:16,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:16,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:16,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:16,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:16,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:16,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:16,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:16,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:16,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:16,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:16,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:16,492 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:16,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-12-22 06:56:16,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72d0eb4f8/ff728d615b0947bab7f8fefed895bcf2/FLAGb90b55bcb [2020-12-22 06:56:17,271 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:17,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-12-22 06:56:17,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72d0eb4f8/ff728d615b0947bab7f8fefed895bcf2/FLAGb90b55bcb [2020-12-22 06:56:17,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72d0eb4f8/ff728d615b0947bab7f8fefed895bcf2 [2020-12-22 06:56:17,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:17,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:17,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:17,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:17,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:17,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:17" (1/1) ... [2020-12-22 06:56:17,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3452f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:17, skipping insertion in model container [2020-12-22 06:56:17,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:17" (1/1) ... [2020-12-22 06:56:17,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:17,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:17,976 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_spec4_product10.cil.c[11394,11407] [2020-12-22 06:56:18,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:18,059 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:18,106 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_spec4_product10.cil.c[11394,11407] [2020-12-22 06:56:18,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:18,160 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:18,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18 WrapperNode [2020-12-22 06:56:18,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:18,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:18,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:18,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:18,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:18,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:18,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:18,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:18,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (1/1) ... [2020-12-22 06:56:18,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:18,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:18,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:18,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:18,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (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 06:56:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:19,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:19,467 INFO L299 CfgBuilder]: Removed 68 assume(true) statements. [2020-12-22 06:56:19,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:19 BoogieIcfgContainer [2020-12-22 06:56:19,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:19,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:19,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:19,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:19,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:17" (1/3) ... [2020-12-22 06:56:19,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508548bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:19, skipping insertion in model container [2020-12-22 06:56:19,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:18" (2/3) ... [2020-12-22 06:56:19,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508548bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:19, skipping insertion in model container [2020-12-22 06:56:19,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:19" (3/3) ... [2020-12-22 06:56:19,478 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2020-12-22 06:56:19,485 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:19,490 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:19,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:19,539 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:19,539 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:19,539 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:19,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:19,540 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:19,540 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:19,540 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:19,540 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:19,556 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-12-22 06:56:19,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:19,563 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:19,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:19,564 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:19,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1537784819, now seen corresponding path program 1 times [2020-12-22 06:56:19,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:19,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519393877] [2020-12-22 06:56:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:19,955 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 06:56:19,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519393877] [2020-12-22 06:56:19,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:19,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:19,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814329369] [2020-12-22 06:56:19,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:19,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:19,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:19,990 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2020-12-22 06:56:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:20,026 INFO L93 Difference]: Finished difference Result 108 states and 161 transitions. [2020-12-22 06:56:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:20,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:20,044 INFO L225 Difference]: With dead ends: 108 [2020-12-22 06:56:20,044 INFO L226 Difference]: Without dead ends: 53 [2020-12-22 06:56:20,051 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 06:56:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-22 06:56:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-22 06:56:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 06:56:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2020-12-22 06:56:20,095 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 16 [2020-12-22 06:56:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:20,095 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2020-12-22 06:56:20,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:20,096 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2020-12-22 06:56:20,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:20,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:20,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:20,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:20,098 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:20,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1979941713, now seen corresponding path program 1 times [2020-12-22 06:56:20,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:20,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749118848] [2020-12-22 06:56:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:20,182 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 06:56:20,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749118848] [2020-12-22 06:56:20,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:20,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:20,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552634909] [2020-12-22 06:56:20,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:20,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:20,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:20,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:20,187 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand 3 states. [2020-12-22 06:56:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:20,197 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2020-12-22 06:56:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:20,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:20,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:20,199 INFO L225 Difference]: With dead ends: 53 [2020-12-22 06:56:20,199 INFO L226 Difference]: Without dead ends: 27 [2020-12-22 06:56:20,200 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 06:56:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-22 06:56:20,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-22 06:56:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-22 06:56:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-12-22 06:56:20,205 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 17 [2020-12-22 06:56:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:20,205 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-12-22 06:56:20,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-12-22 06:56:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:20,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:20,207 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] [2020-12-22 06:56:20,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:20,207 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1992386864, now seen corresponding path program 1 times [2020-12-22 06:56:20,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:20,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106498061] [2020-12-22 06:56:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:20,446 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 06:56:20,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106498061] [2020-12-22 06:56:20,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:20,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:20,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674495907] [2020-12-22 06:56:20,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:20,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:20,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:20,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:20,450 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2020-12-22 06:56:20,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:20,822 INFO L93 Difference]: Finished difference Result 142 states and 221 transitions. [2020-12-22 06:56:20,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:20,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-12-22 06:56:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:20,827 INFO L225 Difference]: With dead ends: 142 [2020-12-22 06:56:20,827 INFO L226 Difference]: Without dead ends: 121 [2020-12-22 06:56:20,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-22 06:56:20,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-12-22 06:56:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2020-12-22 06:56:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:56:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2020-12-22 06:56:20,844 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 85 transitions. Word has length 22 [2020-12-22 06:56:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:20,845 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 85 transitions. [2020-12-22 06:56:20,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-12-22 06:56:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:20,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:20,846 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 06:56:20,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:20,847 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:20,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1296861074, now seen corresponding path program 1 times [2020-12-22 06:56:20,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:20,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111056477] [2020-12-22 06:56:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:20,902 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 06:56:20,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111056477] [2020-12-22 06:56:20,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:20,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:20,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943651654] [2020-12-22 06:56:20,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:20,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:20,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:20,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:20,905 INFO L87 Difference]: Start difference. First operand 60 states and 85 transitions. Second operand 3 states. [2020-12-22 06:56:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:20,923 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2020-12-22 06:56:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:20,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 06:56:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:20,924 INFO L225 Difference]: With dead ends: 95 [2020-12-22 06:56:20,925 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 06:56:20,925 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 06:56:20,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 06:56:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-22 06:56:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 06:56:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2020-12-22 06:56:20,947 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 23 [2020-12-22 06:56:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:20,948 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2020-12-22 06:56:20,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2020-12-22 06:56:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 06:56:20,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:20,951 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:20,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:20,951 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:20,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:20,952 INFO L82 PathProgramCache]: Analyzing trace with hash -829366222, now seen corresponding path program 1 times [2020-12-22 06:56:20,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:20,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846648297] [2020-12-22 06:56:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:21,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846648297] [2020-12-22 06:56:21,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708716539] [2020-12-22 06:56:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:56:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:21,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:21,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:21,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:21,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:21,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139983477] [2020-12-22 06:56:21,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:21,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:21,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:21,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:21,312 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand 4 states. [2020-12-22 06:56:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:21,406 INFO L93 Difference]: Finished difference Result 73 states and 100 transitions. [2020-12-22 06:56:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:21,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 06:56:21,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:21,407 INFO L225 Difference]: With dead ends: 73 [2020-12-22 06:56:21,407 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:21,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 06:56:21,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:21,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-12-22 06:56:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:21,409 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:21,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:21,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:21,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:56:21,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:22,070 INFO L189 CegarLoopUtils]: For program point L762(lines 762 766) no Hoare annotation was computed. [2020-12-22 06:56:22,070 INFO L189 CegarLoopUtils]: For program point L729(lines 729 742) no Hoare annotation was computed. [2020-12-22 06:56:22,070 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,071 INFO L189 CegarLoopUtils]: For program point L762-3(lines 762 766) no Hoare annotation was computed. [2020-12-22 06:56:22,071 INFO L189 CegarLoopUtils]: For program point L762-6(lines 762 766) no Hoare annotation was computed. [2020-12-22 06:56:22,071 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:22,071 INFO L189 CegarLoopUtils]: For program point L53(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:22,071 INFO L185 CegarLoopUtils]: At program point L53-1(lines 1 869) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (<= 2 ~waterLevel~0) .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))))) [2020-12-22 06:56:22,072 INFO L189 CegarLoopUtils]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:22,072 INFO L185 CegarLoopUtils]: At program point L53-3(lines 1 869) the Hoare annotation is: false [2020-12-22 06:56:22,072 INFO L189 CegarLoopUtils]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:22,072 INFO L185 CegarLoopUtils]: At program point L53-5(lines 1 869) the Hoare annotation is: false [2020-12-22 06:56:22,072 INFO L185 CegarLoopUtils]: At program point L747(lines 698 748) the Hoare annotation is: false [2020-12-22 06:56:22,073 INFO L185 CegarLoopUtils]: At program point L831(lines 826 834) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:22,073 INFO L185 CegarLoopUtils]: At program point L831-1(lines 826 834) the Hoare annotation is: false [2020-12-22 06:56:22,073 INFO L185 CegarLoopUtils]: At program point L831-2(lines 826 834) the Hoare annotation is: false [2020-12-22 06:56:22,073 INFO L189 CegarLoopUtils]: For program point L700(lines 699 746) no Hoare annotation was computed. [2020-12-22 06:56:22,073 INFO L185 CegarLoopUtils]: At program point L866(lines 861 869) the Hoare annotation is: (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:22,073 INFO L189 CegarLoopUtils]: For program point L701(lines 701 705) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L189 CegarLoopUtils]: For program point L57(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L189 CegarLoopUtils]: For program point L536(lines 536 543) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L189 CegarLoopUtils]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L192 CegarLoopUtils]: At program point L536-1(lines 536 543) the Hoare annotation is: true [2020-12-22 06:56:22,074 INFO L189 CegarLoopUtils]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:22,074 INFO L185 CegarLoopUtils]: At program point L570(lines 570 576) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:22,075 INFO L185 CegarLoopUtils]: At program point L570-1(lines 570 576) the Hoare annotation is: false [2020-12-22 06:56:22,075 INFO L185 CegarLoopUtils]: At program point L570-2(lines 570 576) the Hoare annotation is: false [2020-12-22 06:56:22,075 INFO L189 CegarLoopUtils]: For program point L719(lines 719 725) no Hoare annotation was computed. [2020-12-22 06:56:22,075 INFO L185 CegarLoopUtils]: At program point L719-1(lines 719 725) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:22,076 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,076 INFO L189 CegarLoopUtils]: For program point L786(lines 786 790) no Hoare annotation was computed. [2020-12-22 06:56:22,076 INFO L189 CegarLoopUtils]: For program point L737(lines 737 741) no Hoare annotation was computed. [2020-12-22 06:56:22,076 INFO L185 CegarLoopUtils]: At program point L737-2(lines 563 569) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:22,076 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:22,076 INFO L189 CegarLoopUtils]: For program point L441(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,077 INFO L189 CegarLoopUtils]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,077 INFO L189 CegarLoopUtils]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,077 INFO L185 CegarLoopUtils]: At program point L458-2(lines 458 472) the Hoare annotation is: false [2020-12-22 06:56:22,077 INFO L185 CegarLoopUtils]: At program point L640(lines 635 643) the Hoare annotation is: false [2020-12-22 06:56:22,077 INFO L185 CegarLoopUtils]: At program point L640-1(lines 635 643) the Hoare annotation is: false [2020-12-22 06:56:22,077 INFO L185 CegarLoopUtils]: At program point L640-2(lines 635 643) the Hoare annotation is: false [2020-12-22 06:56:22,078 INFO L189 CegarLoopUtils]: For program point L459(line 459) no Hoare annotation was computed. [2020-12-22 06:56:22,078 INFO L185 CegarLoopUtils]: At program point L509(lines 505 511) the Hoare annotation is: (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:22,078 INFO L189 CegarLoopUtils]: For program point L774(lines 774 778) no Hoare annotation was computed. [2020-12-22 06:56:22,078 INFO L189 CegarLoopUtils]: For program point L709(lines 709 715) no Hoare annotation was computed. [2020-12-22 06:56:22,078 INFO L185 CegarLoopUtils]: At program point L709-1(lines 709 715) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:22,078 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:22,079 INFO L185 CegarLoopUtils]: At program point L858(lines 1 869) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0)) [2020-12-22 06:56:22,079 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:56:22,079 INFO L189 CegarLoopUtils]: For program point L462(lines 462 466) no Hoare annotation was computed. [2020-12-22 06:56:22,079 INFO L189 CegarLoopUtils]: For program point L462-1(lines 563 569) no Hoare annotation was computed. [2020-12-22 06:56:22,079 INFO L192 CegarLoopUtils]: At program point L545(lines 526 548) the Hoare annotation is: true [2020-12-22 06:56:22,079 INFO L185 CegarLoopUtils]: At program point L563(lines 562 581) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:22,080 INFO L189 CegarLoopUtils]: For program point L563-1(lines 563 569) no Hoare annotation was computed. [2020-12-22 06:56:22,080 INFO L185 CegarLoopUtils]: At program point L563-2(lines 562 581) the Hoare annotation is: false [2020-12-22 06:56:22,080 INFO L185 CegarLoopUtils]: At program point L563-3(lines 562 581) the Hoare annotation is: false [2020-12-22 06:56:22,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:22 BoogieIcfgContainer [2020-12-22 06:56:22,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:22,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:22,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:22,102 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:22,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:19" (3/4) ... [2020-12-22 06:56:22,106 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:22,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:22,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:22,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:22,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:22,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:22,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:22,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:22,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (waterLevel == 1 && \result == waterLevel) && pumpRunning == 0 [2020-12-22 06:56:22,162 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0 [2020-12-22 06:56:22,163 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-12-22 06:56:22,164 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:22,164 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:22,165 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:22,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:22,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:22,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:22,238 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product10.cil.c-witness.graphml [2020-12-22 06:56:22,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:22,240 INFO L168 Benchmark]: Toolchain (without parser) took 4619.12 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 127.1 MB in the beginning and 104.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 63.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,241 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory was 124.0 MB in the beginning and 124.0 MB in the end (delta: 79.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:22,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.01 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 107.1 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.12 ms. Allocated memory is still 153.1 MB. Free memory was 107.1 MB in the beginning and 104.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,242 INFO L168 Benchmark]: Boogie Preprocessor took 36.42 ms. Allocated memory is still 153.1 MB. Free memory was 104.5 MB in the beginning and 102.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,243 INFO L168 Benchmark]: RCFGBuilder took 1185.23 ms. Allocated memory is still 153.1 MB. Free memory was 102.6 MB in the beginning and 89.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,244 INFO L168 Benchmark]: TraceAbstraction took 2630.31 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 89.2 MB in the beginning and 109.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,245 INFO L168 Benchmark]: Witness Printer took 136.05 ms. Allocated memory is still 192.9 MB. Free memory was 109.4 MB in the beginning and 104.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:22,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory was 124.0 MB in the beginning and 124.0 MB in the end (delta: 79.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 536.01 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 107.1 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 84.12 ms. Allocated memory is still 153.1 MB. Free memory was 107.1 MB in the beginning and 104.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.42 ms. Allocated memory is still 153.1 MB. Free memory was 104.5 MB in the beginning and 102.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1185.23 ms. Allocated memory is still 153.1 MB. Free memory was 102.6 MB in the beginning and 89.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2630.31 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 89.2 MB in the beginning and 109.9 MB in the end (delta: -20.7 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. * Witness Printer took 136.05 ms. Allocated memory is still 192.9 MB. Free memory was 109.4 MB in the beginning and 104.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (waterLevel == 1 && \result == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: waterLevel == 1 && pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 293 SDslu, 280 SDs, 0 SdLazy, 84 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 25 PreInvPairs, 41 NumberOfFragments, 250 HoareAnnotationTreeSize, 25 FomulaSimplifications, 288 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 9184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 23/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...