./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/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 9033da3093a23b8640383fad25d5fd5dfea2cc28 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:22:14,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:14,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:14,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:14,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:14,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:14,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:14,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:14,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:14,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:14,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:14,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:14,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:14,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:14,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:14,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:14,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:14,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:14,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:14,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:14,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:14,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:14,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:14,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:14,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:14,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:14,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:14,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:14,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:14,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:14,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:14,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:14,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:14,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:14,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:14,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:14,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:14,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:14,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:14,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:14,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:14,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:14,954 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:14,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:14,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:14,955 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:14,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:14,955 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:14,955 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:14,956 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:14,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:14,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:14,956 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:14,956 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:14,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:14,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:14,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:14,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:14,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:14,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:14,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:14,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:14,959 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:14,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:14,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:14,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:14,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:14,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:14,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:14,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:14,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:14,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:14,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:14,961 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:14,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:14,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:14,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:14,961 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/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2019-10-22 11:22:14,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:14,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:15,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:15,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:15,002 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:15,003 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-10-22 11:22:15,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/data/8d1643841/f4d9687949444e858972ac7ba1dab5fc/FLAG9677d25ca [2019-10-22 11:22:15,503 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:15,503 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2019-10-22 11:22:15,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/data/8d1643841/f4d9687949444e858972ac7ba1dab5fc/FLAG9677d25ca [2019-10-22 11:22:15,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/data/8d1643841/f4d9687949444e858972ac7ba1dab5fc [2019-10-22 11:22:15,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:15,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:15,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:15,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:15,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:15,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:15" (1/1) ... [2019-10-22 11:22:15,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12af4273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:15, skipping insertion in model container [2019-10-22 11:22:15,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:15" (1/1) ... [2019-10-22 11:22:15,862 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:15,910 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:16,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:16,274 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:16,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:16,363 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:16,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16 WrapperNode [2019-10-22 11:22:16,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:16,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:16,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:16,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:16,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:16,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:16,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:16,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:16,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:16,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:16,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:16,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:16,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/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 [2019-10-22 11:22:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:22:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:17,301 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:17,302 INFO L284 CfgBuilder]: Removed 166 assume(true) statements. [2019-10-22 11:22:17,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17 BoogieIcfgContainer [2019-10-22 11:22:17,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:17,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:17,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:17,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:17,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:15" (1/3) ... [2019-10-22 11:22:17,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b075126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:17, skipping insertion in model container [2019-10-22 11:22:17,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (2/3) ... [2019-10-22 11:22:17,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b075126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:17, skipping insertion in model container [2019-10-22 11:22:17,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17" (3/3) ... [2019-10-22 11:22:17,310 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2019-10-22 11:22:17,318 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:17,325 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:22:17,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:22:17,360 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:17,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:17,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:17,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:17,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:17,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:17,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:17,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-10-22 11:22:17,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:22:17,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,383 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 11:22:17,384 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2019-10-22 11:22:17,398 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677308098] [2019-10-22 11:22:17,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,611 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 11:22:17,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677308098] [2019-10-22 11:22:17,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,612 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:17,612 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941085790] [2019-10-22 11:22:17,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:17,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:17,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:17,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:17,632 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2019-10-22 11:22:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:17,661 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2019-10-22 11:22:17,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:17,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:22:17,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:17,672 INFO L225 Difference]: With dead ends: 244 [2019-10-22 11:22:17,672 INFO L226 Difference]: Without dead ends: 121 [2019-10-22 11:22:17,676 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 11:22:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-22 11:22:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-10-22 11:22:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 11:22:17,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2019-10-22 11:22:17,716 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2019-10-22 11:22:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:17,717 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2019-10-22 11:22:17,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2019-10-22 11:22:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:22:17,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,718 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 11:22:17,718 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,719 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2019-10-22 11:22:17,719 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656352157] [2019-10-22 11:22:17,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,805 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 11:22:17,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656352157] [2019-10-22 11:22:17,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:17,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148460746] [2019-10-22 11:22:17,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:17,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:17,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:17,808 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2019-10-22 11:22:17,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:17,820 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2019-10-22 11:22:17,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:17,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:22:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:17,822 INFO L225 Difference]: With dead ends: 121 [2019-10-22 11:22:17,822 INFO L226 Difference]: Without dead ends: 51 [2019-10-22 11:22:17,823 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 11:22:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-22 11:22:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-10-22 11:22:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:22:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-10-22 11:22:17,831 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-10-22 11:22:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:17,831 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-10-22 11:22:17,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-10-22 11:22:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:22:17,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,832 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 11:22:17,832 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2019-10-22 11:22:17,833 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321790656] [2019-10-22 11:22:17,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,998 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 11:22:17,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321790656] [2019-10-22 11:22:17,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,999 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:22:17,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396920553] [2019-10-22 11:22:17,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:22:17,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:18,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:22:18,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:18,000 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2019-10-22 11:22:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:18,151 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2019-10-22 11:22:18,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:18,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 11:22:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:18,155 INFO L225 Difference]: With dead ends: 166 [2019-10-22 11:22:18,155 INFO L226 Difference]: Without dead ends: 121 [2019-10-22 11:22:18,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:22:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-10-22 11:22:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2019-10-22 11:22:18,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 11:22:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2019-10-22 11:22:18,165 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2019-10-22 11:22:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:18,165 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2019-10-22 11:22:18,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:22:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-10-22 11:22:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:22:18,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:18,166 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 11:22:18,167 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2019-10-22 11:22:18,167 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:18,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200952764] [2019-10-22 11:22:18,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:18,247 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 11:22:18,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200952764] [2019-10-22 11:22:18,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:18,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:18,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761229150] [2019-10-22 11:22:18,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:18,248 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:18,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:18,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:18,249 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2019-10-22 11:22:18,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:18,295 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2019-10-22 11:22:18,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:18,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:22:18,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:18,297 INFO L225 Difference]: With dead ends: 161 [2019-10-22 11:22:18,297 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:22:18,298 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 11:22:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:22:18,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-10-22 11:22:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-10-22 11:22:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2019-10-22 11:22:18,311 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2019-10-22 11:22:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:18,312 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2019-10-22 11:22:18,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2019-10-22 11:22:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:22:18,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:18,313 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, 1] [2019-10-22 11:22:18,313 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:18,313 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2019-10-22 11:22:18,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:18,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208685455] [2019-10-22 11:22:18,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:18,392 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 11:22:18,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208685455] [2019-10-22 11:22:18,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:18,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:18,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457660197] [2019-10-22 11:22:18,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:18,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:18,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:18,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:18,394 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2019-10-22 11:22:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:18,525 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2019-10-22 11:22:18,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:22:18,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:22:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:18,528 INFO L225 Difference]: With dead ends: 482 [2019-10-22 11:22:18,528 INFO L226 Difference]: Without dead ends: 395 [2019-10-22 11:22:18,529 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 11:22:18,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-22 11:22:18,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2019-10-22 11:22:18,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 11:22:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2019-10-22 11:22:18,562 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2019-10-22 11:22:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:18,562 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2019-10-22 11:22:18,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2019-10-22 11:22:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:22:18,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:18,563 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, 1, 1] [2019-10-22 11:22:18,564 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:18,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2019-10-22 11:22:18,564 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:18,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442687455] [2019-10-22 11:22:18,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:18,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:19,239 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:19,239 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:19,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:19 BoogieIcfgContainer [2019-10-22 11:22:19,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:19,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:19,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:19,344 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:19,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17" (3/4) ... [2019-10-22 11:22:19,347 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:19,426 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d852223-ed09-486d-888a-40c1e32f2ff0/bin/utaipan/witness.graphml [2019-10-22 11:22:19,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:19,430 INFO L168 Benchmark]: Toolchain (without parser) took 3581.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 938.3 MB in the beginning and 1.0 GB in the end (delta: -91.1 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,431 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:19,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.22 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,435 INFO L168 Benchmark]: Boogie Preprocessor took 54.10 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,435 INFO L168 Benchmark]: RCFGBuilder took 824.28 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,435 INFO L168 Benchmark]: TraceAbstraction took 2039.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,435 INFO L168 Benchmark]: Witness Printer took 84.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:19,437 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 514.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.22 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.10 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 824.28 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2039.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 84.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 655 SDslu, 669 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=5, 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, 5 MinimizatonAttempts, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...