./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb835625053b28be1502d008fc964b9382c39b0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:21:45,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:21:45,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:21:45,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:21:45,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:21:45,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:21:45,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:21:45,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:21:45,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:21:45,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:21:45,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:21:45,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:21:45,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:21:45,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:21:45,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:21:45,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:21:45,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:21:45,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:21:45,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:21:45,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:21:45,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:21:45,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:21:45,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:21:45,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:21:45,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:21:45,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:21:45,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:21:45,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:21:45,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:21:45,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:21:45,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:21:45,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:21:45,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:21:45,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:21:45,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:21:45,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:21:45,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:21:45,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:21:45,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:21:45,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:21:45,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:21:45,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:21:45,482 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:21:45,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:21:45,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:21:45,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:21:45,486 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:21:45,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:21:45,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:21:45,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:21:45,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:21:45,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:21:45,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:21:45,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:21:45,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:21:45,489 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:21:45,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:21:45,490 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:21:45,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:21:45,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:21:45,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:21:45,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:21:45,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:21:45,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:45,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:21:45,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:21:45,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:21:45,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:21:45,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:21:45,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:21:45,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb835625053b28be1502d008fc964b9382c39b0e [2019-11-28 00:21:45,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:21:45,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:21:45,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:21:45,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:21:45,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:21:45,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-11-28 00:21:45,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef069cf/5475243924e04e1b8be4c059b7504b7c/FLAGd49464189 [2019-11-28 00:21:46,457 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:21:46,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-11-28 00:21:46,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef069cf/5475243924e04e1b8be4c059b7504b7c/FLAGd49464189 [2019-11-28 00:21:46,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ef069cf/5475243924e04e1b8be4c059b7504b7c [2019-11-28 00:21:46,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:21:46,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:21:46,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:46,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:21:46,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:21:46,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:46" (1/1) ... [2019-11-28 00:21:46,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cce8044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:46, skipping insertion in model container [2019-11-28 00:21:46,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:46" (1/1) ... [2019-11-28 00:21:46,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:21:46,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:21:47,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:47,247 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:21:47,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:47,409 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:21:47,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47 WrapperNode [2019-11-28 00:21:47,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:47,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:47,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:21:47,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:21:47,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:47,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:21:47,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:21:47,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:21:47,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... [2019-11-28 00:21:47,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:21:47,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:21:47,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:21:47,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:21:47,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:21:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:21:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:21:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:21:48,527 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:21:48,528 INFO L297 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-28 00:21:48,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:48 BoogieIcfgContainer [2019-11-28 00:21:48,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:21:48,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:21:48,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:21:48,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:21:48,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:46" (1/3) ... [2019-11-28 00:21:48,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51787fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:48, skipping insertion in model container [2019-11-28 00:21:48,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:47" (2/3) ... [2019-11-28 00:21:48,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51787fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:48, skipping insertion in model container [2019-11-28 00:21:48,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:48" (3/3) ... [2019-11-28 00:21:48,539 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2019-11-28 00:21:48,549 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:21:48,557 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:21:48,570 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:21:48,601 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:21:48,602 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:21:48,602 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:21:48,602 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:21:48,603 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:21:48,603 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:21:48,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:21:48,603 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:21:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-28 00:21:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:21:48,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:48,640 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:48,641 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:48,646 INFO L82 PathProgramCache]: Analyzing trace with hash 946560340, now seen corresponding path program 1 times [2019-11-28 00:21:48,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:48,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831380730] [2019-11-28 00:21:48,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:48,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831380730] [2019-11-28 00:21:48,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:48,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:48,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427927196] [2019-11-28 00:21:48,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:21:48,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:48,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:21:48,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:21:48,977 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-28 00:21:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:49,011 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2019-11-28 00:21:49,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:21:49,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:21:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:49,026 INFO L225 Difference]: With dead ends: 220 [2019-11-28 00:21:49,026 INFO L226 Difference]: Without dead ends: 109 [2019-11-28 00:21:49,030 INFO L630 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 [2019-11-28 00:21:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-28 00:21:49,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-28 00:21:49,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 00:21:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2019-11-28 00:21:49,078 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2019-11-28 00:21:49,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:49,079 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2019-11-28 00:21:49,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:21:49,080 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2019-11-28 00:21:49,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:21:49,081 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:49,082 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:49,082 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:49,083 INFO L82 PathProgramCache]: Analyzing trace with hash 35529587, now seen corresponding path program 1 times [2019-11-28 00:21:49,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:49,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893323908] [2019-11-28 00:21:49,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:49,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893323908] [2019-11-28 00:21:49,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:49,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:21:49,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380437182] [2019-11-28 00:21:49,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:49,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:49,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:49,250 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2019-11-28 00:21:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:49,281 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2019-11-28 00:21:49,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:49,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:21:49,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:49,285 INFO L225 Difference]: With dead ends: 109 [2019-11-28 00:21:49,285 INFO L226 Difference]: Without dead ends: 47 [2019-11-28 00:21:49,287 INFO L630 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 [2019-11-28 00:21:49,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-28 00:21:49,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-11-28 00:21:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-28 00:21:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-11-28 00:21:49,307 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2019-11-28 00:21:49,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:49,308 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-11-28 00:21:49,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-11-28 00:21:49,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:21:49,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:49,310 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:49,311 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:49,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:49,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2019-11-28 00:21:49,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:49,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893174872] [2019-11-28 00:21:49,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:49,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893174872] [2019-11-28 00:21:49,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:49,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:21:49,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617735993] [2019-11-28 00:21:49,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 00:21:49,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:49,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 00:21:49,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 00:21:49,502 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 6 states. [2019-11-28 00:21:49,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:49,672 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2019-11-28 00:21:49,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:21:49,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-28 00:21:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:49,677 INFO L225 Difference]: With dead ends: 154 [2019-11-28 00:21:49,679 INFO L226 Difference]: Without dead ends: 113 [2019-11-28 00:21:49,680 INFO L630 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 [2019-11-28 00:21:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-28 00:21:49,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2019-11-28 00:21:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-28 00:21:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2019-11-28 00:21:49,703 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2019-11-28 00:21:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:49,704 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2019-11-28 00:21:49,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 00:21:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-11-28 00:21:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 00:21:49,707 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:49,707 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:49,708 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:49,710 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2019-11-28 00:21:49,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:49,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448599320] [2019-11-28 00:21:49,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:49,837 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448599320] [2019-11-28 00:21:49,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:49,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:21:49,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705245443] [2019-11-28 00:21:49,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:21:49,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:49,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:21:49,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:21:49,842 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 5 states. [2019-11-28 00:21:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:49,999 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2019-11-28 00:21:49,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:21:49,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-28 00:21:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:50,003 INFO L225 Difference]: With dead ends: 376 [2019-11-28 00:21:50,003 INFO L226 Difference]: Without dead ends: 314 [2019-11-28 00:21:50,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 00:21:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-11-28 00:21:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2019-11-28 00:21:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-28 00:21:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2019-11-28 00:21:50,045 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2019-11-28 00:21:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:50,046 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2019-11-28 00:21:50,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:21:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2019-11-28 00:21:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:21:50,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:50,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:50,051 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:50,051 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2019-11-28 00:21:50,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:50,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201612702] [2019-11-28 00:21:50,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:50,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:21:50,257 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:21:50,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:21:50 BoogieIcfgContainer [2019-11-28 00:21:50,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:21:50,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:21:50,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:21:50,375 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:21:50,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:48" (3/4) ... [2019-11-28 00:21:50,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:21:50,558 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:21:50,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:21:50,566 INFO L168 Benchmark]: Toolchain (without parser) took 3812.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 957.7 MB in the beginning and 936.8 MB in the end (delta: 20.8 MB). Peak memory consumption was 170.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,570 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:21:50,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,574 INFO L168 Benchmark]: Boogie Preprocessor took 43.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:21:50,574 INFO L168 Benchmark]: RCFGBuilder took 963.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,575 INFO L168 Benchmark]: TraceAbstraction took 1843.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.0 MB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,579 INFO L168 Benchmark]: Witness Printer took 184.45 ms. Allocated memory is still 1.2 GB. Free memory was 950.0 MB in the beginning and 936.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:50,581 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 963.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1843.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.0 MB in the end (delta: 111.8 MB). Peak memory consumption was 111.8 MB. Max. memory is 11.5 GB. * Witness Printer took 184.45 ms. Allocated memory is still 1.2 GB. Free memory was 950.0 MB in the beginning and 936.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int retValue_acc ; [L515] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L389] tmp = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] COND TRUE \read(systemActive) [L239] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] COND FALSE !(\read(pumpRunning)) [L213] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L216] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L151] tmp___0 = getWaterLevel() [L153] COND TRUE tmp___0 == 2 [L291] int retValue_acc ; [L294] retValue_acc = pumpRunning [L295] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] tmp___1 = isPumpRunning() [L157] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 619 SDslu, 585 SDs, 0 SdLazy, 69 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 4 MinimizatonAttempts, 235 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...