/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:05,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:05,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:05,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:05,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:05,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:05,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:05,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:05,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:05,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:05,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:05,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:05,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:05,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:05,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:05,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:05,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:05,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:05,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:05,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:05,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:05,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:05,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:05,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:05,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:05,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:05,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:05,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:05,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:05,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:05,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:05,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:05,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:05,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:05,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:05,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:05,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:05,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:05,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:05,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:05,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:05,382 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:05,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:05,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:05,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:05,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:05,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:05,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:05,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:05,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:05,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:05,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:05,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:05,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:05,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:05,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:05,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:05,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:05,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:05,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:05,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:05,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:05,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:05,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:05,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:05,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:05,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:05,802 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:05,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c [2020-12-22 06:56:05,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0778660ac/45bec6a8870543c79553de2d8b6ede59/FLAGd3f6a8a77 [2020-12-22 06:56:06,534 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:06,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product03.cil.c [2020-12-22 06:56:06,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0778660ac/45bec6a8870543c79553de2d8b6ede59/FLAGd3f6a8a77 [2020-12-22 06:56:06,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0778660ac/45bec6a8870543c79553de2d8b6ede59 [2020-12-22 06:56:06,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:06,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:06,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:06,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:06,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:06,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:06" (1/1) ... [2020-12-22 06:56:06,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25665b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:06, skipping insertion in model container [2020-12-22 06:56:06,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:06" (1/1) ... [2020-12-22 06:56:06,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:06,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:07,101 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_product03.cil.c[1281,1294] [2020-12-22 06:56:07,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:07,282 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:07,316 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_product03.cil.c[1281,1294] [2020-12-22 06:56:07,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:07,420 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:07,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07 WrapperNode [2020-12-22 06:56:07,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:07,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:07,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:07,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:07,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:07,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:07,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:07,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:07,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (1/1) ... [2020-12-22 06:56:07,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:07,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:07,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:07,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:07,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (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 06:56:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:08,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:08,683 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2020-12-22 06:56:08,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:08 BoogieIcfgContainer [2020-12-22 06:56:08,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:08,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:08,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:08,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:08,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:06" (1/3) ... [2020-12-22 06:56:08,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f536b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:08, skipping insertion in model container [2020-12-22 06:56:08,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:07" (2/3) ... [2020-12-22 06:56:08,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f536b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:08, skipping insertion in model container [2020-12-22 06:56:08,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:08" (3/3) ... [2020-12-22 06:56:08,694 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product03.cil.c [2020-12-22 06:56:08,700 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:08,705 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:08,724 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:08,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:08,751 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:08,751 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:08,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:08,751 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:08,751 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:08,752 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:08,752 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-12-22 06:56:08,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:08,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:08,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:08,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:08,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1256308090, now seen corresponding path program 1 times [2020-12-22 06:56:08,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:08,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643742589] [2020-12-22 06:56:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:09,101 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 06:56:09,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643742589] [2020-12-22 06:56:09,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:09,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:09,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060798985] [2020-12-22 06:56:09,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:09,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:09,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:09,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:09,126 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2020-12-22 06:56:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,153 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2020-12-22 06:56:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:09,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,165 INFO L225 Difference]: With dead ends: 112 [2020-12-22 06:56:09,165 INFO L226 Difference]: Without dead ends: 55 [2020-12-22 06:56:09,168 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 06:56:09,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-22 06:56:09,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-12-22 06:56:09,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-22 06:56:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2020-12-22 06:56:09,211 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 16 [2020-12-22 06:56:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,211 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2020-12-22 06:56:09,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2020-12-22 06:56:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:09,213 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,213 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 06:56:09,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:09,213 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,215 INFO L82 PathProgramCache]: Analyzing trace with hash 209551193, now seen corresponding path program 1 times [2020-12-22 06:56:09,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349607265] [2020-12-22 06:56:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:09,382 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 06:56:09,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349607265] [2020-12-22 06:56:09,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:09,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:09,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356504056] [2020-12-22 06:56:09,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:09,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:09,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:09,391 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand 3 states. [2020-12-22 06:56:09,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,412 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2020-12-22 06:56:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:09,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,416 INFO L225 Difference]: With dead ends: 55 [2020-12-22 06:56:09,416 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 06:56:09,417 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 06:56:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 06:56:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-22 06:56:09,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-22 06:56:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-12-22 06:56:09,424 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 17 [2020-12-22 06:56:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,425 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-12-22 06:56:09,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:09,425 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-12-22 06:56:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:09,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,426 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 06:56:09,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:09,427 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,428 INFO L82 PathProgramCache]: Analyzing trace with hash 474467475, now seen corresponding path program 1 times [2020-12-22 06:56:09,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522392730] [2020-12-22 06:56:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:09,544 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 06:56:09,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522392730] [2020-12-22 06:56:09,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:09,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:09,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600808931] [2020-12-22 06:56:09,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:09,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:09,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:09,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:09,548 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-12-22 06:56:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:09,824 INFO L93 Difference]: Finished difference Result 98 states and 142 transitions. [2020-12-22 06:56:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:09,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-22 06:56:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:09,832 INFO L225 Difference]: With dead ends: 98 [2020-12-22 06:56:09,832 INFO L226 Difference]: Without dead ends: 75 [2020-12-22 06:56:09,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-22 06:56:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2020-12-22 06:56:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-22 06:56:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2020-12-22 06:56:09,868 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 22 [2020-12-22 06:56:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:09,868 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2020-12-22 06:56:09,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2020-12-22 06:56:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:09,873 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:09,873 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 06:56:09,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:09,874 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:09,875 INFO L82 PathProgramCache]: Analyzing trace with hash 2106923728, now seen corresponding path program 1 times [2020-12-22 06:56:09,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:09,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904787622] [2020-12-22 06:56:09,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:10,012 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 06:56:10,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904787622] [2020-12-22 06:56:10,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:10,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:10,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231001357] [2020-12-22 06:56:10,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:10,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:10,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:10,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:10,016 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand 8 states. [2020-12-22 06:56:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:10,447 INFO L93 Difference]: Finished difference Result 281 states and 435 transitions. [2020-12-22 06:56:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:10,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-12-22 06:56:10,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:10,456 INFO L225 Difference]: With dead ends: 281 [2020-12-22 06:56:10,456 INFO L226 Difference]: Without dead ends: 239 [2020-12-22 06:56:10,461 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 06:56:10,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-22 06:56:10,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 118. [2020-12-22 06:56:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-12-22 06:56:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 169 transitions. [2020-12-22 06:56:10,507 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 169 transitions. Word has length 22 [2020-12-22 06:56:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:10,507 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 169 transitions. [2020-12-22 06:56:10,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 169 transitions. [2020-12-22 06:56:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:10,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:10,509 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 06:56:10,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:10,509 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:10,510 INFO L82 PathProgramCache]: Analyzing trace with hash -473529446, now seen corresponding path program 1 times [2020-12-22 06:56:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:10,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715110551] [2020-12-22 06:56:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:10,625 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 06:56:10,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715110551] [2020-12-22 06:56:10,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:10,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:10,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200614493] [2020-12-22 06:56:10,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:10,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:10,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:10,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:10,628 INFO L87 Difference]: Start difference. First operand 118 states and 169 transitions. Second operand 3 states. [2020-12-22 06:56:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:10,647 INFO L93 Difference]: Finished difference Result 224 states and 322 transitions. [2020-12-22 06:56:10,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:10,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-22 06:56:10,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:10,650 INFO L225 Difference]: With dead ends: 224 [2020-12-22 06:56:10,650 INFO L226 Difference]: Without dead ends: 112 [2020-12-22 06:56:10,651 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 06:56:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-12-22 06:56:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-12-22 06:56:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-22 06:56:10,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 150 transitions. [2020-12-22 06:56:10,683 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 150 transitions. Word has length 23 [2020-12-22 06:56:10,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:10,684 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 150 transitions. [2020-12-22 06:56:10,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:10,684 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 150 transitions. [2020-12-22 06:56:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 06:56:10,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:10,689 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 06:56:10,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:10,689 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:10,690 INFO L82 PathProgramCache]: Analyzing trace with hash 718124842, now seen corresponding path program 1 times [2020-12-22 06:56:10,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:10,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791652504] [2020-12-22 06:56:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:10,785 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 06:56:10,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791652504] [2020-12-22 06:56:10,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032149373] [2020-12-22 06:56:10,786 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 06:56:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:10,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:10,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:11,046 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 06:56:11,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:11,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:11,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856705571] [2020-12-22 06:56:11,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:11,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:11,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:11,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:11,052 INFO L87 Difference]: Start difference. First operand 112 states and 150 transitions. Second operand 4 states. [2020-12-22 06:56:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:11,145 INFO L93 Difference]: Finished difference Result 146 states and 197 transitions. [2020-12-22 06:56:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:11,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 06:56:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:11,146 INFO L225 Difference]: With dead ends: 146 [2020-12-22 06:56:11,146 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:11,148 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 06:56:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:11,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:11,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:11,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-12-22 06:56:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:11,149 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:11,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:11,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:11,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:11,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:12,071 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,071 INFO L189 CegarLoopUtils]: For program point L779(lines 779 783) no Hoare annotation was computed. [2020-12-22 06:56:12,077 INFO L189 CegarLoopUtils]: For program point L746(lines 746 759) no Hoare annotation was computed. [2020-12-22 06:56:12,077 INFO L189 CegarLoopUtils]: For program point L779-1(lines 542 548) no Hoare annotation was computed. [2020-12-22 06:56:12,078 INFO L185 CegarLoopUtils]: At program point L746-1(lines 1 858) the Hoare annotation is: (let ((.cse4 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse1 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4 0)))) (or (and (= ~waterLevel~0 1) .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2 .cse3) (and .cse4 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse5) (and .cse4 .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0) .cse5))) [2020-12-22 06:56:12,078 INFO L189 CegarLoopUtils]: For program point L746-2(lines 746 759) no Hoare annotation was computed. [2020-12-22 06:56:12,078 INFO L185 CegarLoopUtils]: At program point L746-3(lines 1 858) the Hoare annotation is: false [2020-12-22 06:56:12,079 INFO L189 CegarLoopUtils]: For program point L746-4(lines 746 759) no Hoare annotation was computed. [2020-12-22 06:56:12,079 INFO L185 CegarLoopUtils]: At program point L746-5(lines 1 858) the Hoare annotation is: false [2020-12-22 06:56:12,079 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:12,079 INFO L189 CegarLoopUtils]: For program point L664(lines 664 668) no Hoare annotation was computed. [2020-12-22 06:56:12,079 INFO L189 CegarLoopUtils]: For program point L664-3(lines 664 668) no Hoare annotation was computed. [2020-12-22 06:56:12,079 INFO L189 CegarLoopUtils]: For program point L664-6(lines 664 668) no Hoare annotation was computed. [2020-12-22 06:56:12,080 INFO L189 CegarLoopUtils]: For program point L846(lines 846 853) no Hoare annotation was computed. [2020-12-22 06:56:12,080 INFO L192 CegarLoopUtils]: At program point L846-1(lines 846 853) the Hoare annotation is: true [2020-12-22 06:56:12,080 INFO L185 CegarLoopUtils]: At program point L549(lines 549 555) 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) .cse0 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0) (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:12,081 INFO L185 CegarLoopUtils]: At program point L549-1(lines 549 555) the Hoare annotation is: false [2020-12-22 06:56:12,081 INFO L185 CegarLoopUtils]: At program point L549-2(lines 549 555) the Hoare annotation is: false [2020-12-22 06:56:12,081 INFO L185 CegarLoopUtils]: At program point L450(lines 445 453) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:12,081 INFO L189 CegarLoopUtils]: For program point L500(lines 500 513) no Hoare annotation was computed. [2020-12-22 06:56:12,081 INFO L185 CegarLoopUtils]: At program point L518(lines 469 519) the Hoare annotation is: false [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L733(lines 728 736) 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~5 ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L733-1(lines 728 736) the Hoare annotation is: false [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L733-2(lines 728 736) the Hoare annotation is: false [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L601(lines 596 604) the Hoare annotation is: false [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L601-1(lines 596 604) the Hoare annotation is: false [2020-12-22 06:56:12,082 INFO L185 CegarLoopUtils]: At program point L601-2(lines 596 604) the Hoare annotation is: false [2020-12-22 06:56:12,083 INFO L189 CegarLoopUtils]: For program point L750(lines 750 756) no Hoare annotation was computed. [2020-12-22 06:56:12,083 INFO L189 CegarLoopUtils]: For program point L750-2(lines 750 756) no Hoare annotation was computed. [2020-12-22 06:56:12,083 INFO L189 CegarLoopUtils]: For program point L750-4(lines 750 756) no Hoare annotation was computed. [2020-12-22 06:56:12,083 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:12,083 INFO L189 CegarLoopUtils]: For program point L471(lines 470 517) no Hoare annotation was computed. [2020-12-22 06:56:12,084 INFO L189 CegarLoopUtils]: For program point L472(lines 472 476) no Hoare annotation was computed. [2020-12-22 06:56:12,084 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,084 INFO L189 CegarLoopUtils]: For program point L506(lines 506 512) no Hoare annotation was computed. [2020-12-22 06:56:12,084 INFO L185 CegarLoopUtils]: At program point L506-1(lines 542 548) 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) .cse0 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0) (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:12,084 INFO L189 CegarLoopUtils]: For program point L688(lines 688 692) no Hoare annotation was computed. [2020-12-22 06:56:12,084 INFO L189 CegarLoopUtils]: For program point L490(lines 490 496) no Hoare annotation was computed. [2020-12-22 06:56:12,085 INFO L185 CegarLoopUtils]: At program point L490-1(lines 490 496) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 .cse0 .cse1 .cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4 0))) (and .cse2 (not (= 0 ~systemActive~0)) .cse3 .cse0 .cse1 .cse4))) [2020-12-22 06:56:12,085 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:12,085 INFO L185 CegarLoopUtils]: At program point L442(lines 1 858) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:12,085 INFO L192 CegarLoopUtils]: At program point L855(lines 836 858) the Hoare annotation is: true [2020-12-22 06:56:12,085 INFO L189 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,085 INFO L189 CegarLoopUtils]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,086 INFO L189 CegarLoopUtils]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,086 INFO L185 CegarLoopUtils]: At program point L542(lines 541 560) 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) .cse0 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0) (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:12,086 INFO L189 CegarLoopUtils]: For program point L542-1(lines 542 548) no Hoare annotation was computed. [2020-12-22 06:56:12,086 INFO L185 CegarLoopUtils]: At program point L542-2(lines 541 560) the Hoare annotation is: false [2020-12-22 06:56:12,086 INFO L185 CegarLoopUtils]: At program point L542-3(lines 541 560) the Hoare annotation is: false [2020-12-22 06:56:12,086 INFO L185 CegarLoopUtils]: At program point L823(lines 819 825) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ULTIMATE.start_main_~tmp~5 ~systemActive~0) (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:12,087 INFO L185 CegarLoopUtils]: At program point L775-2(lines 775 789) the Hoare annotation is: false [2020-12-22 06:56:12,087 INFO L189 CegarLoopUtils]: For program point L676(lines 676 680) no Hoare annotation was computed. [2020-12-22 06:56:12,087 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:12,087 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:12,087 INFO L189 CegarLoopUtils]: For program point L776(line 776) no Hoare annotation was computed. [2020-12-22 06:56:12,087 INFO L189 CegarLoopUtils]: For program point L645(lines 645 651) no Hoare annotation was computed. [2020-12-22 06:56:12,087 INFO L185 CegarLoopUtils]: At program point L645-1(lines 645 651) 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) .cse0 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0) (<= 1 ~waterLevel~0) .cse1))) [2020-12-22 06:56:12,088 INFO L189 CegarLoopUtils]: For program point L480(lines 480 486) no Hoare annotation was computed. [2020-12-22 06:56:12,088 INFO L185 CegarLoopUtils]: At program point L480-1(lines 480 486) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~5 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 .cse0 .cse1 .cse4 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4 0))) (and .cse2 (not (= 0 ~systemActive~0)) .cse3 .cse0 .cse1 .cse4))) [2020-12-22 06:56:12,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:12 BoogieIcfgContainer [2020-12-22 06:56:12,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:12,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:12,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:12,135 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:12,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:08" (3/4) ... [2020-12-22 06:56:12,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:12,161 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:12,162 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:12,162 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:12,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:12,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:12,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:12,164 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:12,193 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:12,194 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == waterLevel && 1 == systemActive) && tmp == systemActive) && tmp == waterLevel) && pumpRunning == 0 [2020-12-22 06:56:12,194 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0))) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0)) [2020-12-22 06:56:12,194 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((((\result == waterLevel && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:12,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((((\result == waterLevel && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:12,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:12,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:12,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:12,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:56:12,197 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 06:56:12,240 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product03.cil.c-witness.graphml [2020-12-22 06:56:12,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:12,242 INFO L168 Benchmark]: Toolchain (without parser) took 5385.12 ms. Allocated memory was 162.5 MB in the beginning and 212.9 MB in the end (delta: 50.3 MB). Free memory was 136.6 MB in the beginning and 84.8 MB in the end (delta: 51.8 MB). Peak memory consumption was 102.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,243 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 162.5 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:12,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.35 ms. Allocated memory is still 162.5 MB. Free memory was 136.4 MB in the beginning and 116.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.99 ms. Allocated memory is still 162.5 MB. Free memory was 116.7 MB in the beginning and 114.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,244 INFO L168 Benchmark]: Boogie Preprocessor took 39.52 ms. Allocated memory is still 162.5 MB. Free memory was 114.1 MB in the beginning and 112.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,245 INFO L168 Benchmark]: RCFGBuilder took 1145.66 ms. Allocated memory is still 162.5 MB. Free memory was 112.3 MB in the beginning and 99.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,246 INFO L168 Benchmark]: TraceAbstraction took 3446.97 ms. Allocated memory was 162.5 MB in the beginning and 212.9 MB in the end (delta: 50.3 MB). Free memory was 99.1 MB in the beginning and 90.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,246 INFO L168 Benchmark]: Witness Printer took 106.26 ms. Allocated memory is still 212.9 MB. Free memory was 90.0 MB in the beginning and 84.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:12,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 162.5 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 560.35 ms. Allocated memory is still 162.5 MB. Free memory was 136.4 MB in the beginning and 116.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 75.99 ms. Allocated memory is still 162.5 MB. Free memory was 116.7 MB in the beginning and 114.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.52 ms. Allocated memory is still 162.5 MB. Free memory was 114.1 MB in the beginning and 112.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1145.66 ms. Allocated memory is still 162.5 MB. Free memory was 112.3 MB in the beginning and 99.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3446.97 ms. Allocated memory was 162.5 MB in the beginning and 212.9 MB in the end (delta: 50.3 MB). Free memory was 99.1 MB in the beginning and 90.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 8.0 GB. * Witness Printer took 106.26 ms. Allocated memory is still 212.9 MB. Free memory was 90.0 MB in the beginning and 84.8 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: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: 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: 645]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 846]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 480]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((((\result == waterLevel && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 490]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((((\result == waterLevel && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0))) || ((((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0)) - InvariantResult [Line: 728]: 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: 0 - InvariantResult [Line: 728]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 728]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 819]: Loop Invariant Derived loop invariant: (((\result == waterLevel && 1 == systemActive) && tmp == systemActive) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 469]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && pumpRunning == 0) && tmp == waterLevel) && 1 <= waterLevel) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 292 SDtfs, 484 SDslu, 508 SDs, 0 SdLazy, 105 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 148 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 26 PreInvPairs, 58 NumberOfFragments, 370 HoareAnnotationTreeSize, 26 FomulaSimplifications, 1373 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 26 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 10486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 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...