./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer --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 89d3e03d13ddf6bdf33773beb0dd234640ee97c8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 09:02:12,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:12,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:12,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:12,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:12,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:12,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:12,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:12,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:12,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:12,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:12,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:12,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:12,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:12,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:12,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:12,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:12,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:12,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:12,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:12,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:12,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:12,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:12,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:12,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:12,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:12,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:12,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:12,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:12,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:12,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:12,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:12,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:12,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:12,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:12,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:12,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:12,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:12,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:12,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:12,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:12,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:12,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:12,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:12,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:12,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:12,460 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:12,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:12,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:12,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:12,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:12,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:12,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:12,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:12,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:12,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:12,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:12,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:12,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:12,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:12,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:12,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:12,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:12,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:12,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:12,465 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer 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 -> 89d3e03d13ddf6bdf33773beb0dd234640ee97c8 [2019-10-22 09:02:12,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:12,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:12,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:12,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:12,511 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:12,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2019-10-22 09:02:12,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/data/7bec8c9d6/4662c5c525ef4f5a9ddc76acbbf68483/FLAGea5e2386e [2019-10-22 09:02:13,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:13,024 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2019-10-22 09:02:13,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/data/7bec8c9d6/4662c5c525ef4f5a9ddc76acbbf68483/FLAGea5e2386e [2019-10-22 09:02:13,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/data/7bec8c9d6/4662c5c525ef4f5a9ddc76acbbf68483 [2019-10-22 09:02:13,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:13,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:13,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:13,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:13,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:13,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e8593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,561 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:13,602 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:14,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:14,025 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:14,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:14,141 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:14,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14 WrapperNode [2019-10-22 09:02:14,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:14,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:14,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:14,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:14,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:14,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:14,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:14,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:14,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... [2019-10-22 09:02:14,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:14,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:14,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:14,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:14,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/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 [2019-10-22 09:02:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:14,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:14,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:14,962 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:14,962 INFO L284 CfgBuilder]: Removed 106 assume(true) statements. [2019-10-22 09:02:14,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:14 BoogieIcfgContainer [2019-10-22 09:02:14,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:14,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:14,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:14,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:14,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:13" (1/3) ... [2019-10-22 09:02:14,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e59c7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:14, skipping insertion in model container [2019-10-22 09:02:14,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:14" (2/3) ... [2019-10-22 09:02:14,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e59c7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:14, skipping insertion in model container [2019-10-22 09:02:14,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:14" (3/3) ... [2019-10-22 09:02:14,976 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2019-10-22 09:02:14,988 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:15,001 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:02:15,013 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:02:15,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:15,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:15,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:15,051 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:15,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:15,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:15,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:15,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:15,070 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2019-10-22 09:02:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:02:15,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,080 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:15,082 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1227208852, now seen corresponding path program 1 times [2019-10-22 09:02:15,098 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142170795] [2019-10-22 09:02:15,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142170795] [2019-10-22 09:02:15,380 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:15,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028947719] [2019-10-22 09:02:15,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:02:15,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:02:15,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:15,397 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2019-10-22 09:02:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,421 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2019-10-22 09:02:15,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:02:15,422 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 09:02:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,434 INFO L225 Difference]: With dead ends: 148 [2019-10-22 09:02:15,436 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 09:02:15,439 INFO L600 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 [2019-10-22 09:02:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 09:02:15,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-10-22 09:02:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 09:02:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2019-10-22 09:02:15,479 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2019-10-22 09:02:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,480 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2019-10-22 09:02:15,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:02:15,480 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2019-10-22 09:02:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:15,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,481 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:15,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2138239605, now seen corresponding path program 1 times [2019-10-22 09:02:15,482 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881393477] [2019-10-22 09:02:15,482 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881393477] [2019-10-22 09:02:15,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:15,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981941344] [2019-10-22 09:02:15,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:15,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:15,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:15,565 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2019-10-22 09:02:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,576 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2019-10-22 09:02:15,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:15,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:02:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,577 INFO L225 Difference]: With dead ends: 73 [2019-10-22 09:02:15,578 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 09:02:15,578 INFO L600 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 [2019-10-22 09:02:15,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 09:02:15,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-22 09:02:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 09:02:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2019-10-22 09:02:15,584 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2019-10-22 09:02:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,585 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2019-10-22 09:02:15,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:15,585 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-10-22 09:02:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:02:15,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,586 INFO L380 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] [2019-10-22 09:02:15,586 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash -227571320, now seen corresponding path program 1 times [2019-10-22 09:02:15,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799138052] [2019-10-22 09:02:15,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799138052] [2019-10-22 09:02:15,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:15,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874000089] [2019-10-22 09:02:15,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:15,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:15,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:15,658 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2019-10-22 09:02:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,675 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2019-10-22 09:02:15,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:15,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 09:02:15,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,677 INFO L225 Difference]: With dead ends: 93 [2019-10-22 09:02:15,677 INFO L226 Difference]: Without dead ends: 64 [2019-10-22 09:02:15,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:15,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-10-22 09:02:15,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2019-10-22 09:02:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-22 09:02:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2019-10-22 09:02:15,691 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2019-10-22 09:02:15,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,696 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2019-10-22 09:02:15,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2019-10-22 09:02:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:02:15,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:15,697 INFO L380 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] [2019-10-22 09:02:15,698 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:15,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1937535180, now seen corresponding path program 1 times [2019-10-22 09:02:15,698 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:15,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180394993] [2019-10-22 09:02:15,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,699 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:15,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:15,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180394993] [2019-10-22 09:02:15,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:15,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:15,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148824836] [2019-10-22 09:02:15,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:15,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:15,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:15,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:15,825 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand 5 states. [2019-10-22 09:02:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:15,973 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2019-10-22 09:02:15,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:15,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 09:02:15,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:15,976 INFO L225 Difference]: With dead ends: 320 [2019-10-22 09:02:15,976 INFO L226 Difference]: Without dead ends: 266 [2019-10-22 09:02:15,977 INFO L600 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 [2019-10-22 09:02:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-22 09:02:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2019-10-22 09:02:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-22 09:02:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2019-10-22 09:02:15,995 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 25 [2019-10-22 09:02:15,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:15,995 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2019-10-22 09:02:15,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:15,995 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2019-10-22 09:02:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:02:16,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:16,002 INFO L380 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] [2019-10-22 09:02:16,002 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:16,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:16,002 INFO L82 PathProgramCache]: Analyzing trace with hash -21773810, now seen corresponding path program 1 times [2019-10-22 09:02:16,002 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:16,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573023337] [2019-10-22 09:02:16,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:16,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:16,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:16,584 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:16,585 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:02:16,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:16 BoogieIcfgContainer [2019-10-22 09:02:16,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:16,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:16,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:16,705 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:16,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:14" (3/4) ... [2019-10-22 09:02:16,710 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:02:16,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84f0aba0-9596-435c-91cc-a710fe1a4874/bin/uautomizer/witness.graphml [2019-10-22 09:02:16,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:16,843 INFO L168 Benchmark]: Toolchain (without parser) took 3299.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). Peak memory consumption was 218.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,844 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:16,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.32 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. [2019-10-22 09:02:16,849 INFO L168 Benchmark]: Boogie Preprocessor took 53.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,852 INFO L168 Benchmark]: RCFGBuilder took 700.91 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,852 INFO L168 Benchmark]: TraceAbstraction took 1739.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.7 MB in the end (delta: 177.2 MB). Peak memory consumption was 177.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,853 INFO L168 Benchmark]: Witness Printer took 135.93 ms. Allocated memory is still 1.2 GB. Free memory was 875.7 MB in the beginning and 1.1 GB in the end (delta: -241.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:16,854 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 597.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.32 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. * Boogie Preprocessor took 53.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 700.91 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1739.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.7 MB in the end (delta: 177.2 MB). Peak memory consumption was 177.2 MB. Max. memory is 11.5 GB. * Witness Printer took 135.93 ms. Allocated memory is still 1.2 GB. Free memory was 875.7 MB in the beginning and 1.1 GB in the end (delta: -241.2 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L454] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int waterLevel = 1; [L653] int methaneLevelCritical = 0; [L732] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] int retValue_acc ; [L809] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] int retValue_acc ; [L904] retValue_acc = 1 [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L219] int splverifierCounter ; [L220] int tmp ; [L221] int tmp___0 ; [L222] int tmp___1 ; [L223] int tmp___2 ; [L226] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L228] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L236] tmp = __VERIFIER_nondet_int() [L238] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE waterLevel < 2 [L671] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L246] tmp___0 = __VERIFIER_nondet_int() [L248] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L256] tmp___2 = __VERIFIER_nondet_int() [L258] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L64] COND TRUE \read(systemActive) [L86] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L89] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L691] int retValue_acc ; [L694] retValue_acc = methaneLevelCritical [L695] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L839] tmp = isMethaneLevelCritical() [L841] COND FALSE !(\read(tmp)) [L723] int retValue_acc ; [L726] retValue_acc = waterLevel [L727] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] tmp___0 = getWaterLevel() [L847] COND TRUE tmp___0 == 2 [L155] int retValue_acc ; [L158] retValue_acc = pumpRunning [L159] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] tmp___1 = isPumpRunning() [L851] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L870] __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, 77 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 272 SDslu, 233 SDs, 0 SdLazy, 39 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3488 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...