./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.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_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ........................................................................................................................................................................................................................................................................................................................................... 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 02:36:20,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:20,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:20,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:20,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:20,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:20,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:20,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:20,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:20,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:20,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:20,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:20,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:20,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:20,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:20,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:20,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:20,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:21,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:21,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:21,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:21,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:21,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:21,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:21,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:21,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:21,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:21,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:21,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:21,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:21,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:21,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:21,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:21,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:21,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:21,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:21,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:21,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:21,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:21,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:21,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:21,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:36:21,052 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:21,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:21,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:21,053 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:21,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:21,053 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:21,054 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:36:21,054 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:21,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:21,054 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:36:21,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:36:21,055 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:21,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:36:21,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:36:21,055 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:36:21,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:21,056 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:21,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:21,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:21,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:21,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:21,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:21,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:21,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:21,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:21,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:21,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:21,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:21,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:21,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:21,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:21,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:21,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:21,059 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:36:21,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:21,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:21,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:21,060 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_ff485efd-d332-4cb6-818c-0f052450cf51/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2019-11-26 02:36:21,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:21,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:21,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:21,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:21,239 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:21,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-11-26 02:36:21,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/data/544805e3e/c36bbb421a574bdc97e1558f93b7870a/FLAGf87f30215 [2019-11-26 02:36:21,783 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:21,783 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-11-26 02:36:21,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/data/544805e3e/c36bbb421a574bdc97e1558f93b7870a/FLAGf87f30215 [2019-11-26 02:36:22,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/data/544805e3e/c36bbb421a574bdc97e1558f93b7870a [2019-11-26 02:36:22,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:22,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:22,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:22,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:22,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:22,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:22,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0c20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22, skipping insertion in model container [2019-11-26 02:36:22,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:22,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:22,386 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:22,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:22,828 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:22,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:22,934 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:22,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22 WrapperNode [2019-11-26 02:36:22,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:22,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:22,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:22,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:22,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:22,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:23,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:23,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:23,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:23,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... [2019-11-26 02:36:23,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:23,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:23,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:23,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:23,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/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 02:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:26,560 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:26,561 INFO L284 CfgBuilder]: Removed 282 assume(true) statements. [2019-11-26 02:36:26,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:26 BoogieIcfgContainer [2019-11-26 02:36:26,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:26,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:26,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:26,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:26,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:22" (1/3) ... [2019-11-26 02:36:26,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aff264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:26, skipping insertion in model container [2019-11-26 02:36:26,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:22" (2/3) ... [2019-11-26 02:36:26,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aff264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:26, skipping insertion in model container [2019-11-26 02:36:26,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:26" (3/3) ... [2019-11-26 02:36:26,570 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2019-11-26 02:36:26,579 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:26,585 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:36:26,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:36:26,616 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:26,616 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:26,616 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:26,616 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:26,616 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:26,617 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:26,617 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:26,617 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:36:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:36:26,634 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:26,635 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:36:26,635 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:26,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:26,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1327936566, now seen corresponding path program 1 times [2019-11-26 02:36:26,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:26,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321529744] [2019-11-26 02:36:26,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:26,906 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 02:36:26,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321529744] [2019-11-26 02:36:26,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:26,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:36:26,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176102605] [2019-11-26 02:36:26,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:36:26,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:26,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:36:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:36:26,927 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:36:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:26,948 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:36:26,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:36:26,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:36:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:26,958 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:36:26,958 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:36:26,964 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 02:36:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:36:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:36:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:36:26,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:36:26,994 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:36:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:26,994 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:36:26,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:36:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:36:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:36:26,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:26,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:36:26,996 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash 397493427, now seen corresponding path program 1 times [2019-11-26 02:36:26,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:26,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129771818] [2019-11-26 02:36:26,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:36:27,483 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:36:27,483 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:36:27,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:27 BoogieIcfgContainer [2019-11-26 02:36:27,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:27,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:27,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:27,561 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:27,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:26" (3/4) ... [2019-11-26 02:36:27,565 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:36:27,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff485efd-d332-4cb6-818c-0f052450cf51/bin/utaipan/witness.graphml [2019-11-26 02:36:27,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:27,689 INFO L168 Benchmark]: Toolchain (without parser) took 5372.78 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 238.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,690 INFO L168 Benchmark]: CDTParser took 0.20 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 02:36:27,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -233.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,693 INFO L168 Benchmark]: Boogie Preprocessor took 56.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,693 INFO L168 Benchmark]: RCFGBuilder took 3487.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 954.3 MB in the end (delta: 208.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,696 INFO L168 Benchmark]: TraceAbstraction took 997.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 47.7 MB). Free memory was 954.3 MB in the beginning and 1.2 GB in the end (delta: -201.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:27,696 INFO L168 Benchmark]: Witness Printer took 126.58 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:27,698 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 618.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -233.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3487.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 954.3 MB in the end (delta: 208.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 997.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 47.7 MB). Free memory was 954.3 MB in the beginning and 1.2 GB in the end (delta: -201.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 126.58 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L884] int retValue_acc ; [L885] int tmp ; [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___1)) [L498] COND FALSE !(\read(pumpRunning)) [L505] COND TRUE \read(systemActive) [L579] int tmp ; [L582] COND FALSE !(\read(pumpRunning)) [L553] int tmp ; [L556] COND FALSE !(\read(pumpRunning)) [L527] int tmp ; [L530] COND TRUE ! pumpRunning [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L988] int retValue_acc ; [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) [L607] pumpRunning = 1 [L777] int tmp ; [L778] int tmp___0 ; [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __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: 0.9s, 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...