./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ......................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:38:56,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:56,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:56,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:56,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:56,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:56,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:56,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:56,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:56,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:56,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:56,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:56,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:56,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:56,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:56,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:56,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:56,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:56,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:56,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:56,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:56,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:56,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:56,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:56,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:56,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:56,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:56,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:56,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:56,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:56,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:56,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:56,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:56,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:56,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:56,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:56,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:56,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:56,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:56,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:56,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:56,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:56,385 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:56,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:56,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:56,386 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:56,386 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:56,386 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:56,386 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:56,386 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:56,386 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:56,387 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:56,387 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:56,387 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:56,387 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:56,387 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:56,388 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:56,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:56,388 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:56,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:56,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:56,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:56,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:56,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:56,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:56,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:56,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:56,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:56,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:56,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:56,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:56,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:56,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:56,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:56,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:56,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:56,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:56,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:56,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:56,392 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan 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 -> Taipan 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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2019-11-26 02:38:56,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:56,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:56,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:56,559 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:56,559 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:56,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-11-26 02:38:56,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/data/a173e8639/24c36d1b227d417e9d9fbbd343db3f80/FLAG5a1bfb680 [2019-11-26 02:38:57,033 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:57,033 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-11-26 02:38:57,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/data/a173e8639/24c36d1b227d417e9d9fbbd343db3f80/FLAG5a1bfb680 [2019-11-26 02:38:57,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/data/a173e8639/24c36d1b227d417e9d9fbbd343db3f80 [2019-11-26 02:38:57,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:57,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:57,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:57,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:57,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:57,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57, skipping insertion in model container [2019-11-26 02:38:57,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:57,107 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:57,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:57,535 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:57,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:57,621 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:57,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57 WrapperNode [2019-11-26 02:38:57,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:57,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:57,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:57,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:57,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:57,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:57,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:57,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:57,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... [2019-11-26 02:38:57,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:57,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:57,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:57,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:57,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:38:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:38:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:59,819 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:59,820 INFO L284 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-26 02:38:59,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:59 BoogieIcfgContainer [2019-11-26 02:38:59,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:59,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:59,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:59,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:59,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:57" (1/3) ... [2019-11-26 02:38:59,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38be19b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:59, skipping insertion in model container [2019-11-26 02:38:59,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:57" (2/3) ... [2019-11-26 02:38:59,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38be19b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:59, skipping insertion in model container [2019-11-26 02:38:59,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:59" (3/3) ... [2019-11-26 02:38:59,828 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2019-11-26 02:38:59,837 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:59,844 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:38:59,854 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:38:59,876 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:59,876 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:59,876 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:59,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:59,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:59,877 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:59,877 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:59,877 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:38:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:38:59,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:59,898 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:38:59,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1041934291, now seen corresponding path program 1 times [2019-11-26 02:38:59,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:59,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769803920] [2019-11-26 02:38:59,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:39:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:39:00,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:39:00,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769803920] [2019-11-26 02:39:00,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:39:00,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:39:00,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977422569] [2019-11-26 02:39:00,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:39:00,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:39:00,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:39:00,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:39:00,215 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:39:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:39:00,232 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:39:00,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:39:00,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:39:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:39:00,243 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:39:00,243 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:39:00,246 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:39:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:39:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:39:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:39:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:39:00,277 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:39:00,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:39:00,277 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:39:00,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:39:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:39:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:39:00,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:39:00,278 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:39:00,279 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:39:00,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:39:00,279 INFO L82 PathProgramCache]: Analyzing trace with hash 543092393, now seen corresponding path program 1 times [2019-11-26 02:39:00,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:39:00,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262848666] [2019-11-26 02:39:00,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:39:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:39:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:39:00,659 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:39:00,659 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:39:00,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:39:00 BoogieIcfgContainer [2019-11-26 02:39:00,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:39:00,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:39:00,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:39:00,745 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:39:00,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:59" (3/4) ... [2019-11-26 02:39:00,748 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:39:00,848 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b5e828c5-70d5-4575-8ce7-79ebb7dab517/bin/utaipan/witness.graphml [2019-11-26 02:39:00,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:39:00,850 INFO L168 Benchmark]: Toolchain (without parser) took 3791.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:00,850 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:00,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:00,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.62 ms. Allocated memory is still 1.1 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. [2019-11-26 02:39:00,851 INFO L168 Benchmark]: Boogie Preprocessor took 43.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:00,852 INFO L168 Benchmark]: RCFGBuilder took 2090.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 868.0 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:00,852 INFO L168 Benchmark]: TraceAbstraction took 921.31 ms. Allocated memory is still 1.1 GB. Free memory was 868.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:39:00,852 INFO L168 Benchmark]: Witness Printer took 103.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:39:00,854 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 562.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.62 ms. Allocated memory is still 1.1 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. * Boogie Preprocessor took 43.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2090.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 868.0 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 921.31 ms. Allocated memory is still 1.1 GB. Free memory was 868.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 103.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L921] int retValue_acc ; [L922] int tmp ; [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp___0) [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] methaneLevelCritical = 1 [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___2)) [L591] tmp___1 = __VERIFIER_nondet_int() [L593] COND FALSE !(\read(tmp___1)) [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L530] int retValue_acc ; [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] tmp___0 = 1 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L658] tmp = isHighWaterLevel() [L660] COND TRUE \read(tmp) [L707] pumpRunning = 1 [L410] int tmp ; [L411] int tmp___0 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L415] tmp = isMethaneLevelCritical() [L417] COND TRUE \read(tmp) [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L419] tmp___0 = isPumpRunning() [L421] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L439] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...