./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product20.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ebccae0581b398040ff9316586f03c48604ddc0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 01:43:08,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:08,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:08,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:08,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:08,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:08,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:08,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:08,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:08,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:08,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:08,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:08,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:08,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:08,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:08,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:08,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:08,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:08,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:08,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:08,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:08,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:08,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:08,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:08,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:08,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:08,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:08,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:08,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:08,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:08,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:08,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:08,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:08,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:08,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:08,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:08,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:08,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:08,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:08,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:08,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:08,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:08,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:08,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:08,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:08,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:08,603 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:08,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:08,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:08,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:08,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:08,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:08,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:08,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:08,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:08,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:08,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:08,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:08,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:08,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:08,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:08,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:08,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:08,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:08,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:08,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:08,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:08,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:08,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:08,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:08,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:08,611 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(reach_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 -> 5ebccae0581b398040ff9316586f03c48604ddc0 [2020-10-20 01:43:08,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:08,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:08,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:08,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:08,828 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:08,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-10-20 01:43:08,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8c9222e/7c2937815db94337b0e59a795bc99e4e/FLAGf629503a0 [2020-10-20 01:43:09,408 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:09,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2020-10-20 01:43:09,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8c9222e/7c2937815db94337b0e59a795bc99e4e/FLAGf629503a0 [2020-10-20 01:43:09,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8c9222e/7c2937815db94337b0e59a795bc99e4e [2020-10-20 01:43:09,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:09,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:09,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:09,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:09,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:09,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:09" (1/1) ... [2020-10-20 01:43:09,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270843d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:09, skipping insertion in model container [2020-10-20 01:43:09,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:09" (1/1) ... [2020-10-20 01:43:09,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:09,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:10,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:10,160 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:10,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:10,282 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:10,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10 WrapperNode [2020-10-20 01:43:10,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:10,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:10,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:10,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:10,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:10,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:10,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:10,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:10,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (1/1) ... [2020-10-20 01:43:10,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:10,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:10,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:10,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:10,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (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 [2020-10-20 01:43:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:10,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:11,444 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:11,445 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-10-20 01:43:11,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:11 BoogieIcfgContainer [2020-10-20 01:43:11,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:11,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:11,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:11,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:11,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:09" (1/3) ... [2020-10-20 01:43:11,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c6d4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:11, skipping insertion in model container [2020-10-20 01:43:11,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:10" (2/3) ... [2020-10-20 01:43:11,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c6d4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:11, skipping insertion in model container [2020-10-20 01:43:11,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:11" (3/3) ... [2020-10-20 01:43:11,457 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-10-20 01:43:11,468 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:11,476 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:11,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:11,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:11,518 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:11,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:11,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:11,520 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:11,520 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:11,520 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:11,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-10-20 01:43:11,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:11,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:11,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:11,549 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:11,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1919608253, now seen corresponding path program 1 times [2020-10-20 01:43:11,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:11,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2250581] [2020-10-20 01:43:11,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:11,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2250581] [2020-10-20 01:43:11,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:11,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:11,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142604691] [2020-10-20 01:43:11,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:11,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:11,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:11,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:11,904 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2020-10-20 01:43:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:11,948 INFO L93 Difference]: Finished difference Result 163 states and 242 transitions. [2020-10-20 01:43:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:11,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:11,962 INFO L225 Difference]: With dead ends: 163 [2020-10-20 01:43:11,962 INFO L226 Difference]: Without dead ends: 79 [2020-10-20 01:43:11,966 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 [2020-10-20 01:43:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-20 01:43:12,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-20 01:43:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-20 01:43:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-10-20 01:43:12,007 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-10-20 01:43:12,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:12,007 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-10-20 01:43:12,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-10-20 01:43:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:12,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:12,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:12,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:12,010 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:12,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1008577500, now seen corresponding path program 1 times [2020-10-20 01:43:12,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:12,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128337709] [2020-10-20 01:43:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:12,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128337709] [2020-10-20 01:43:12,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:12,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:12,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161823339] [2020-10-20 01:43:12,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:12,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:12,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:12,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:12,133 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2020-10-20 01:43:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:12,148 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-10-20 01:43:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:12,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:12,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:12,151 INFO L225 Difference]: With dead ends: 79 [2020-10-20 01:43:12,151 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 01:43:12,152 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 [2020-10-20 01:43:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 01:43:12,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 01:43:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 01:43:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-10-20 01:43:12,159 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-10-20 01:43:12,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:12,160 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-10-20 01:43:12,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-10-20 01:43:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:12,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:12,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:12,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:12,162 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:12,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2020-10-20 01:43:12,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:12,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255188826] [2020-10-20 01:43:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:12,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255188826] [2020-10-20 01:43:12,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:12,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:12,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512790917] [2020-10-20 01:43:12,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:12,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:12,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:12,288 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 5 states. [2020-10-20 01:43:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:12,376 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-10-20 01:43:12,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:12,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 01:43:12,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:12,378 INFO L225 Difference]: With dead ends: 93 [2020-10-20 01:43:12,379 INFO L226 Difference]: Without dead ends: 62 [2020-10-20 01:43:12,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-20 01:43:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-20 01:43:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-20 01:43:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-10-20 01:43:12,391 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2020-10-20 01:43:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:12,391 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-10-20 01:43:12,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-10-20 01:43:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:12,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:12,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:12,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:12,394 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:12,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2020-10-20 01:43:12,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:12,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319139473] [2020-10-20 01:43:12,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:12,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319139473] [2020-10-20 01:43:12,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:12,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:12,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845921063] [2020-10-20 01:43:12,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:12,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:12,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:12,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:12,476 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 5 states. [2020-10-20 01:43:12,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:12,613 INFO L93 Difference]: Finished difference Result 306 states and 467 transitions. [2020-10-20 01:43:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:12,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:43:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:12,616 INFO L225 Difference]: With dead ends: 306 [2020-10-20 01:43:12,617 INFO L226 Difference]: Without dead ends: 254 [2020-10-20 01:43:12,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:12,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-20 01:43:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 104. [2020-10-20 01:43:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 01:43:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2020-10-20 01:43:12,646 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 25 [2020-10-20 01:43:12,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:12,648 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2020-10-20 01:43:12,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2020-10-20 01:43:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:12,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:12,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:12,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:12,650 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:12,651 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2020-10-20 01:43:12,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:12,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919295088] [2020-10-20 01:43:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:12,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:12,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:12,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:12,902 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:12,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:13,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:13 BoogieIcfgContainer [2020-10-20 01:43:13,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:13,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:13,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:13,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:13,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:11" (3/4) ... [2020-10-20 01:43:13,064 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:13,184 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:13,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:13,188 INFO L168 Benchmark]: Toolchain (without parser) took 3507.48 ms. Allocated memory was 34.6 MB in the beginning and 57.7 MB in the end (delta: 23.1 MB). Free memory was 15.8 MB in the beginning and 29.6 MB in the end (delta: -13.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,188 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 33.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.25 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 15.0 MB in the beginning and 26.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.85 ms. Allocated memory is still 44.0 MB. Free memory was 25.8 MB in the beginning and 22.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,190 INFO L168 Benchmark]: Boogie Preprocessor took 39.53 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 19.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,191 INFO L168 Benchmark]: RCFGBuilder took 1037.62 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 19.6 MB in the beginning and 16.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,191 INFO L168 Benchmark]: TraceAbstraction took 1610.26 ms. Allocated memory was 47.2 MB in the beginning and 57.1 MB in the end (delta: 10.0 MB). Free memory was 16.0 MB in the beginning and 15.4 MB in the end (delta: 614.3 kB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,192 INFO L168 Benchmark]: Witness Printer took 125.29 ms. Allocated memory was 57.1 MB in the beginning and 57.7 MB in the end (delta: 524.3 kB). Free memory was 15.4 MB in the beginning and 29.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:13,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 33.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 598.25 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 15.0 MB in the beginning and 26.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 85.85 ms. Allocated memory is still 44.0 MB. Free memory was 25.8 MB in the beginning and 22.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.53 ms. Allocated memory is still 44.0 MB. Free memory was 22.2 MB in the beginning and 19.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1037.62 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 19.6 MB in the beginning and 16.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1610.26 ms. Allocated memory was 47.2 MB in the beginning and 57.1 MB in the end (delta: 10.0 MB). Free memory was 16.0 MB in the beginning and 15.4 MB in the end (delta: 614.3 kB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. * Witness Printer took 125.29 ms. Allocated memory was 57.1 MB in the beginning and 57.7 MB in the end (delta: 524.3 kB). Free memory was 15.4 MB in the beginning and 29.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int splverifierCounter ; [L769] int tmp ; [L770] int tmp___0 ; [L771] int tmp___1 ; [L772] int tmp___2 ; [L775] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L777] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L779] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L785] tmp = __VERIFIER_nondet_int() [L787] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L795] tmp___0 = __VERIFIER_nondet_int() [L797] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp___2 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___2) [L762] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] COND TRUE \read(systemActive) [L628] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L680] int retValue_acc ; [L683] retValue_acc = pumpRunning [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product20.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 480 SDslu, 240 SDs, 0 SdLazy, 48 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 154 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...