./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.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_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/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 63231100df91d767f63e82b83b0d6c2eaec3a983 ......................................................................................................................................................................................................................................................................................................................................... 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 02:53:56,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:53:56,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:53:56,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:53:56,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:53:56,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:53:56,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:53:56,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:53:56,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:53:56,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:53:56,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:53:56,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:53:56,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:53:56,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:53:56,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:53:56,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:53:56,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:53:56,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:53:56,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:53:56,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:53:56,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:53:56,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:53:56,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:53:56,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:53:56,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:53:56,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:53:56,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:53:56,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:53:56,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:53:56,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:53:56,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:53:56,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:53:56,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:53:56,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:53:56,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:53:56,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:53:56,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:53:56,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:53:56,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:53:56,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:53:56,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:53:56,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:53:56,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:53:56,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:53:56,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:53:56,884 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:53:56,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:53:56,884 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:53:56,884 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:53:56,884 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:53:56,884 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:53:56,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:53:56,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:53:56,885 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:53:56,885 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:53:56,885 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:53:56,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:53:56,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:53:56,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:53:56,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:53:56,888 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:53:56,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:53:56,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:53:56,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:53:56,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:53:56,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:53:56,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:53:56,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:53:56,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:53:56,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:53:56,901 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:53:56,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:53:56,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:53:56,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:53:56,902 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_84757802-6987-4989-ad21-46db5c565f95/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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2019-11-26 02:53:57,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:53:57,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:53:57,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:53:57,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:53:57,052 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:53:57,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-11-26 02:53:57,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/data/082fc3129/30ab892a646c4289abf06f001f77dc3c/FLAG14ced7cf7 [2019-11-26 02:53:57,551 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:53:57,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-11-26 02:53:57,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/data/082fc3129/30ab892a646c4289abf06f001f77dc3c/FLAG14ced7cf7 [2019-11-26 02:53:57,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/data/082fc3129/30ab892a646c4289abf06f001f77dc3c [2019-11-26 02:53:57,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:53:57,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:53:57,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:57,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:53:57,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:53:57,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:57" (1/1) ... [2019-11-26 02:53:57,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229ba9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:57, skipping insertion in model container [2019-11-26 02:53:57,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:53:57" (1/1) ... [2019-11-26 02:53:57,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:53:57,959 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:53:58,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:58,344 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:53:58,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:53:58,480 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:53:58,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58 WrapperNode [2019-11-26 02:53:58,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:53:58,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:58,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:53:58,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:53:58,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:53:58,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:53:58,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:53:58,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:53:58,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... [2019-11-26 02:53:58,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:53:58,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:53:58,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:53:58,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:53:58,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/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 02:53:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:53:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:53:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:53:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:54:00,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:54:00,621 INFO L284 CfgBuilder]: Removed 158 assume(true) statements. [2019-11-26 02:54:00,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:00 BoogieIcfgContainer [2019-11-26 02:54:00,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:54:00,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:54:00,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:54:00,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:54:00,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:53:57" (1/3) ... [2019-11-26 02:54:00,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2515828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:00, skipping insertion in model container [2019-11-26 02:54:00,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:53:58" (2/3) ... [2019-11-26 02:54:00,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2515828e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:00, skipping insertion in model container [2019-11-26 02:54:00,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:00" (3/3) ... [2019-11-26 02:54:00,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2019-11-26 02:54:00,645 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:54:00,654 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:54:00,664 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:54:00,684 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:54:00,684 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:54:00,684 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:54:00,684 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:54:00,685 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:54:00,685 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:54:00,685 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:54:00,685 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:54:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:54:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:54:00,704 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:00,704 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:00,705 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:00,709 INFO L82 PathProgramCache]: Analyzing trace with hash -232215590, now seen corresponding path program 1 times [2019-11-26 02:54:00,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:00,715 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128358575] [2019-11-26 02:54:00,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:00,994 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 02:54:00,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128358575] [2019-11-26 02:54:00,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:54:00,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:54:00,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122836444] [2019-11-26 02:54:01,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:54:01,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:54:01,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:54:01,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:54:01,012 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-26 02:54:01,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:54:01,025 INFO L93 Difference]: Finished difference Result 44 states and 63 transitions. [2019-11-26 02:54:01,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:54:01,027 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:54:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:54:01,035 INFO L225 Difference]: With dead ends: 44 [2019-11-26 02:54:01,036 INFO L226 Difference]: Without dead ends: 21 [2019-11-26 02:54:01,039 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 02:54:01,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-26 02:54:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-26 02:54:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-26 02:54:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-26 02:54:01,070 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 7 [2019-11-26 02:54:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:54:01,070 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-26 02:54:01,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:54:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-26 02:54:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:54:01,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:01,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:01,071 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:01,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:01,072 INFO L82 PathProgramCache]: Analyzing trace with hash -717278894, now seen corresponding path program 1 times [2019-11-26 02:54:01,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:01,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133800579] [2019-11-26 02:54:01,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:54:01,350 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:54:01,350 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:54:01,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:54:01 BoogieIcfgContainer [2019-11-26 02:54:01,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:54:01,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:54:01,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:54:01,404 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:54:01,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:00" (3/4) ... [2019-11-26 02:54:01,406 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:54:01,473 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84757802-6987-4989-ad21-46db5c565f95/bin/utaipan/witness.graphml [2019-11-26 02:54:01,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:54:01,475 INFO L168 Benchmark]: Toolchain (without parser) took 3582.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:01,476 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:01,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:01,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:01,477 INFO L168 Benchmark]: Boogie Preprocessor took 77.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:01,477 INFO L168 Benchmark]: RCFGBuilder took 1971.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.1 MB in the end (delta: 223.1 MB). Peak memory consumption was 223.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:01,478 INFO L168 Benchmark]: TraceAbstraction took 779.01 ms. Allocated memory is still 1.2 GB. Free memory was 904.1 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:54:01,478 INFO L168 Benchmark]: Witness Printer took 70.06 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:01,480 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 587.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1971.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.1 MB in the end (delta: 223.1 MB). Peak memory consumption was 223.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 779.01 ms. Allocated memory is still 1.2 GB. Free memory was 904.1 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 70.06 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] int tmp ; [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L327] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE splverifierCounter < 4 [L335] tmp = __VERIFIER_nondet_int() [L337] COND TRUE \read(tmp) [L94] COND TRUE waterLevel < 2 [L95] waterLevel = waterLevel + 1 [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \read(tmp___0) [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) [L402] COND FALSE !(\read(pumpRunning)) [L409] COND TRUE \read(systemActive) [L457] int tmp ; [L460] COND FALSE !(\read(pumpRunning)) [L431] int tmp ; [L434] COND TRUE ! pumpRunning [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; [L156] int retValue_acc ; [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) [L485] pumpRunning = 1 [L44] int tmp ; [L45] int tmp___0 ; [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __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: 0.7s, 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, 0.2s 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...