./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.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_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/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 209a5f451d4da606f6f89775a0cb8490169e98a1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:09:15,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:09:15,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:09:15,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:09:15,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:09:15,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:09:15,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:09:15,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:09:15,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:09:15,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:09:15,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:09:15,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:09:15,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:09:15,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:09:15,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:09:15,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:09:15,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:09:15,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:09:15,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:09:15,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:09:15,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:09:15,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:09:15,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:09:15,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:09:15,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:09:15,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:09:15,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:09:15,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:09:15,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:09:15,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:09:15,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:09:15,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:09:15,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:09:15,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:09:15,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:09:15,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:09:15,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:09:15,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:09:15,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:09:15,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:09:15,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:09:15,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:09:15,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:09:15,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:09:15,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:09:15,860 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:09:15,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:09:15,861 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:09:15,861 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:09:15,861 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:09:15,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:09:15,861 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:09:15,862 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:09:15,862 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:09:15,862 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:09:15,862 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:09:15,863 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:09:15,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:09:15,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:09:15,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:09:15,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:09:15,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:09:15,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:09:15,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:09:15,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:09:15,865 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:09:15,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:09:15,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:09:15,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:09:15,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:09:15,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:09:15,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:09:15,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:09:15,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:09:15,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:09:15,867 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:09:15,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:09:15,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:09:15,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:09:15,868 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_e50a0d2c-f913-49ab-ba2c-1fe97a730326/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2019-11-26 02:09:15,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:09:16,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:09:16,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:09:16,012 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:09:16,013 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:09:16,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-26 02:09:16,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/data/f1cbf5037/2b054477e58b4f54a21968489f2f1487/FLAG70863516e [2019-11-26 02:09:16,536 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:09:16,537 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2019-11-26 02:09:16,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/data/f1cbf5037/2b054477e58b4f54a21968489f2f1487/FLAG70863516e [2019-11-26 02:09:16,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/data/f1cbf5037/2b054477e58b4f54a21968489f2f1487 [2019-11-26 02:09:16,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:09:16,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:09:16,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:09:16,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:09:16,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:09:16,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:09:16" (1/1) ... [2019-11-26 02:09:16,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dce00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:16, skipping insertion in model container [2019-11-26 02:09:16,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:09:16" (1/1) ... [2019-11-26 02:09:16,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:09:16,932 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:09:17,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:09:17,298 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:09:17,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:09:17,405 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:09:17,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17 WrapperNode [2019-11-26 02:09:17,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:09:17,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:09:17,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:09:17,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:09:17,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:09:17,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:09:17,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:09:17,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:09:17,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... [2019-11-26 02:09:17,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:09:17,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:09:17,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:09:17,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:09:17,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/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 02:09:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:09:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:09:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:09:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:09:20,032 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:09:20,032 INFO L284 CfgBuilder]: Removed 194 assume(true) statements. [2019-11-26 02:09:20,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:20 BoogieIcfgContainer [2019-11-26 02:09:20,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:09:20,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:09:20,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:09:20,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:09:20,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:09:16" (1/3) ... [2019-11-26 02:09:20,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e63047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:09:20, skipping insertion in model container [2019-11-26 02:09:20,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:09:17" (2/3) ... [2019-11-26 02:09:20,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e63047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:09:20, skipping insertion in model container [2019-11-26 02:09:20,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:20" (3/3) ... [2019-11-26 02:09:20,042 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2019-11-26 02:09:20,050 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:09:20,056 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:09:20,066 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:09:20,090 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:09:20,090 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:09:20,090 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:09:20,090 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:09:20,090 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:09:20,091 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:09:20,091 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:09:20,091 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:09:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:09:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:09:20,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:09:20,116 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:09:20,117 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:09:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:09:20,123 INFO L82 PathProgramCache]: Analyzing trace with hash -407132541, now seen corresponding path program 1 times [2019-11-26 02:09:20,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:09:20,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350447810] [2019-11-26 02:09:20,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:09:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:20,572 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 02:09:20,573 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350447810] [2019-11-26 02:09:20,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:09:20,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:09:20,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258840539] [2019-11-26 02:09:20,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:09:20,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:09:20,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:09:20,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:09:20,593 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-11-26 02:09:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:09:20,683 INFO L93 Difference]: Finished difference Result 61 states and 87 transitions. [2019-11-26 02:09:20,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:09:20,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-26 02:09:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:09:20,693 INFO L225 Difference]: With dead ends: 61 [2019-11-26 02:09:20,693 INFO L226 Difference]: Without dead ends: 27 [2019-11-26 02:09:20,696 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:09:20,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-26 02:09:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-11-26 02:09:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:09:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-26 02:09:20,726 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 7 [2019-11-26 02:09:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:09:20,726 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-26 02:09:20,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:09:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-26 02:09:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:09:20,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:09:20,727 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:09:20,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:09:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:09:20,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1796089400, now seen corresponding path program 1 times [2019-11-26 02:09:20,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:09:20,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427100696] [2019-11-26 02:09:20,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:09:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:21,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427100696] [2019-11-26 02:09:21,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421840637] [2019-11-26 02:09:21,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:09:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:09:21,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-26 02:09:21,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:09:21,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:21,393 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:09:21,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:09:21,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:09:21,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:09:21,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:09:21,815 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2019-11-26 02:09:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:09:21,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [784661005] [2019-11-26 02:09:21,834 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:09:21,835 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:09:21,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:09:21,846 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:09:21,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:09:28,561 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-26 02:09:30,263 WARN L192 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-26 02:09:30,394 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-26 02:09:31,001 WARN L192 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 599 [2019-11-26 02:09:32,257 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 759 [2019-11-26 02:09:34,526 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:09:36,724 WARN L192 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 368 DAG size of output: 195 [2019-11-26 02:09:40,707 WARN L192 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 484 DAG size of output: 429 [2019-11-26 02:09:41,652 WARN L192 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 147 [2019-11-26 02:09:42,523 WARN L192 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 145 [2019-11-26 02:09:44,187 WARN L192 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 356 DAG size of output: 266 [2019-11-26 02:09:46,124 WARN L192 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 366 DAG size of output: 206 [2019-11-26 02:09:46,129 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:09:46,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:09:46,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2019-11-26 02:09:46,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542771851] [2019-11-26 02:09:46,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-26 02:09:46,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:09:46,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-26 02:09:46,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:09:46,132 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 13 states. [2019-11-26 02:09:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:09:46,266 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2019-11-26 02:09:46,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:09:46,267 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2019-11-26 02:09:46,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:09:46,268 INFO L225 Difference]: With dead ends: 61 [2019-11-26 02:09:46,268 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 02:09:46,269 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:09:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 02:09:46,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2019-11-26 02:09:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:09:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-26 02:09:46,275 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2019-11-26 02:09:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:09:46,275 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-26 02:09:46,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-26 02:09:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-26 02:09:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:09:46,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:09:46,276 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2019-11-26 02:09:46,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:09:46,480 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:09:46,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:09:46,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1800021091, now seen corresponding path program 2 times [2019-11-26 02:09:46,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:09:46,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695806418] [2019-11-26 02:09:46,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:09:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:09:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:09:46,869 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:09:46,869 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:09:46,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:09:46 BoogieIcfgContainer [2019-11-26 02:09:46,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:09:46,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:09:47,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:09:47,002 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:09:47,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:09:20" (3/4) ... [2019-11-26 02:09:47,004 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:09:47,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e50a0d2c-f913-49ab-ba2c-1fe97a730326/bin/utaipan/witness.graphml [2019-11-26 02:09:47,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:09:47,127 INFO L168 Benchmark]: Toolchain (without parser) took 30253.71 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 593.5 MB). Free memory was 944.7 MB in the beginning and 1.3 GB in the end (delta: -400.8 MB). Peak memory consumption was 192.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:47,127 INFO L168 Benchmark]: CDTParser took 0.24 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 02:09:47,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:47,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.50 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 02:09:47,128 INFO L168 Benchmark]: Boogie Preprocessor took 72.18 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 02:09:47,131 INFO L168 Benchmark]: RCFGBuilder took 2481.93 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: 30.4 MB). Peak memory consumption was 250.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:47,131 INFO L168 Benchmark]: TraceAbstraction took 26959.03 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 450.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -273.2 MB). Peak memory consumption was 177.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:47,132 INFO L168 Benchmark]: Witness Printer took 132.16 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:09:47,134 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 529.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.50 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 72.18 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 2481.93 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: 30.4 MB). Peak memory consumption was 250.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26959.03 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 450.4 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -273.2 MB). Peak memory consumption was 177.1 MB. Max. memory is 11.5 GB. * Witness Printer took 132.16 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 [L870] tmp = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp) [L776] COND TRUE waterLevel < 2 [L777] waterLevel = waterLevel + 1 [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 [L562] COND FALSE !(\read(pumpRunning)) [L569] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; [L594] COND TRUE ! pumpRunning [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; [L838] int retValue_acc ; [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] return (retValue_acc); [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] tmp___0 = 1 [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) [L650] int tmp ; [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); [L654] tmp = isMethaneAlarm() [L656] COND FALSE !(\read(tmp)) [L645] pumpRunning = 1 [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L864] COND TRUE splverifierCounter < 4 [L870] tmp = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp) [L776] COND FALSE !(waterLevel < 2) [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L753] systemActive = 1 [L562] COND TRUE \read(pumpRunning) [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 [L569] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; [L594] COND FALSE !(! pumpRunning) [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L862] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L864] COND TRUE splverifierCounter < 4 [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___1)) [L562] COND TRUE \read(pumpRunning) [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 [L569] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND TRUE \read(pumpRunning) [L675] int retValue_acc ; [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) [L591] int tmp ; [L594] COND FALSE !(! pumpRunning) [L148] int tmp ; [L149] int tmp___0 ; [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 26.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 64 SDslu, 131 SDs, 0 SdLazy, 79 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 2 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2910 SizeOfPredicates, 41 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 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...