./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.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_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:45:55,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:45:55,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:45:55,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:45:55,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:45:55,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:45:55,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:45:55,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:45:55,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:45:55,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:45:55,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:45:55,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:45:55,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:45:55,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:45:55,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:45:55,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:45:55,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:45:55,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:45:55,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:45:55,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:45:55,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:45:55,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:45:55,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:45:55,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:45:55,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:45:55,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:45:55,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:45:55,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:45:55,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:45:55,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:45:55,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:45:55,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:45:55,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:45:55,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:45:55,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:45:55,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:45:55,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:45:55,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:45:55,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:45:55,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:45:55,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:45:55,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:45:55,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:45:55,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:45:55,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:45:55,745 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:45:55,745 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:45:55,745 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:45:55,745 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:45:55,746 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:45:55,746 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:45:55,746 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:45:55,746 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:45:55,746 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:45:55,747 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:45:55,747 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:45:55,747 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:45:55,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:45:55,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:45:55,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:45:55,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:45:55,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:45:55,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:45:55,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:45:55,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:45:55,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:45:55,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:45:55,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:45:55,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:45:55,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:45:55,751 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:45:55,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:45:55,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:45:55,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:45:55,751 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_a7ac07de-82b3-481f-ad72-bdb6a23b7104/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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-11-26 02:45:55,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:45:55,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:45:55,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:45:55,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:45:55,906 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:45:55,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-26 02:45:55,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/data/c1a295c57/3389ca95b5944c27a32ebc1d65b667ee/FLAGccd2965dc [2019-11-26 02:45:56,402 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:45:56,402 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-26 02:45:56,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/data/c1a295c57/3389ca95b5944c27a32ebc1d65b667ee/FLAGccd2965dc [2019-11-26 02:45:56,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/data/c1a295c57/3389ca95b5944c27a32ebc1d65b667ee [2019-11-26 02:45:56,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:45:56,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:45:56,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:56,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:45:56,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:45:56,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:56" (1/1) ... [2019-11-26 02:45:56,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad806d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:56, skipping insertion in model container [2019-11-26 02:45:56,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:45:56" (1/1) ... [2019-11-26 02:45:56,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:45:56,793 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:45:57,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:57,108 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:45:57,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:45:57,216 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:45:57,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57 WrapperNode [2019-11-26 02:45:57,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:45:57,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:57,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:45:57,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:45:57,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:45:57,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:45:57,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:45:57,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:45:57,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... [2019-11-26 02:45:57,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:45:57,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:45:57,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:45:57,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:45:57,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/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 02:45:57,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:45:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:45:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:45:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:45:59,162 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:45:59,163 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-26 02:45:59,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:59 BoogieIcfgContainer [2019-11-26 02:45:59,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:45:59,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:45:59,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:45:59,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:45:59,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:45:56" (1/3) ... [2019-11-26 02:45:59,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9633fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:45:59, skipping insertion in model container [2019-11-26 02:45:59,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:45:57" (2/3) ... [2019-11-26 02:45:59,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9633fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:45:59, skipping insertion in model container [2019-11-26 02:45:59,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:59" (3/3) ... [2019-11-26 02:45:59,171 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-11-26 02:45:59,179 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:45:59,185 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:45:59,195 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:45:59,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:45:59,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:45:59,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:45:59,215 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:45:59,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:45:59,216 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:45:59,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:45:59,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:45:59,229 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:45:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:45:59,234 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:45:59,235 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:45:59,235 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:45:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:59,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1507111301, now seen corresponding path program 1 times [2019-11-26 02:45:59,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:45:59,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015662659] [2019-11-26 02:45:59,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:45:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:45:59,651 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 02:45:59,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015662659] [2019-11-26 02:45:59,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:45:59,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:45:59,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297934154] [2019-11-26 02:45:59,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:45:59,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:45:59,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:45:59,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:45:59,673 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-11-26 02:45:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:45:59,852 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-11-26 02:45:59,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:45:59,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:45:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:45:59,862 INFO L225 Difference]: With dead ends: 82 [2019-11-26 02:45:59,862 INFO L226 Difference]: Without dead ends: 51 [2019-11-26 02:45:59,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:45:59,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-26 02:45:59,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2019-11-26 02:45:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:45:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-26 02:45:59,900 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-26 02:45:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:45:59,901 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-26 02:45:59,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:45:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-26 02:45:59,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:45:59,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:45:59,902 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:45:59,903 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:45:59,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:45:59,903 INFO L82 PathProgramCache]: Analyzing trace with hash -841563613, now seen corresponding path program 1 times [2019-11-26 02:45:59,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:45:59,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283913662] [2019-11-26 02:45:59,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:00,152 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 02:46:00,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283913662] [2019-11-26 02:46:00,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341343328] [2019-11-26 02:46:00,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/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 02:46:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:00,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-26 02:46:00,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:46:00,675 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2019-11-26 02:46:00,921 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-11-26 02:46:00,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:00,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,109 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 02:46:01,109 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:46:01,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,268 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,306 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,308 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:46:01,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-26 02:46:01,471 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 02:46:01,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1842389125] [2019-11-26 02:46:01,513 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:46:01,513 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:46:01,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:46:01,525 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:46:01,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:46:10,353 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2019-11-26 02:46:12,044 WARN L192 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-26 02:46:12,215 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2019-11-26 02:46:12,757 WARN L192 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 599 [2019-11-26 02:46:13,866 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:46:15,895 WARN L192 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 360 DAG size of output: 194 [2019-11-26 02:46:20,031 WARN L192 SmtUtils]: Spent 3.99 s on a formula simplification. DAG size of input: 484 DAG size of output: 429 [2019-11-26 02:46:20,993 WARN L192 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 150 [2019-11-26 02:46:23,570 WARN L192 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 348 DAG size of output: 248 [2019-11-26 02:46:23,642 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:46:23,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:46:23,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 15 [2019-11-26 02:46:23,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574504999] [2019-11-26 02:46:23,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-26 02:46:23,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:23,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-26 02:46:23,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2019-11-26 02:46:23,644 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 16 states. [2019-11-26 02:46:24,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:24,032 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2019-11-26 02:46:24,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:46:24,033 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 10 [2019-11-26 02:46:24,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:24,034 INFO L225 Difference]: With dead ends: 81 [2019-11-26 02:46:24,034 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 02:46:24,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2019-11-26 02:46:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 02:46:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2019-11-26 02:46:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:46:24,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-11-26 02:46:24,044 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2019-11-26 02:46:24,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:24,044 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-11-26 02:46:24,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-26 02:46:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-11-26 02:46:24,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:46:24,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:24,045 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2019-11-26 02:46:24,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:46:24,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash 920571259, now seen corresponding path program 2 times [2019-11-26 02:46:24,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:24,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033050861] [2019-11-26 02:46:24,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:46:24,535 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:46:24,535 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:46:24,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:46:24 BoogieIcfgContainer [2019-11-26 02:46:24,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:46:24,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:46:24,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:46:24,617 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:46:24,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:45:59" (3/4) ... [2019-11-26 02:46:24,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:46:24,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a7ac07de-82b3-481f-ad72-bdb6a23b7104/bin/utaipan/witness.graphml [2019-11-26 02:46:24,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:46:24,706 INFO L168 Benchmark]: Toolchain (without parser) took 27971.57 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 394.3 MB). Free memory was 944.8 MB in the beginning and 981.3 MB in the end (delta: -36.5 MB). Peak memory consumption was 357.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:24,707 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:46:24,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:24,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.91 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 02:46:24,708 INFO L168 Benchmark]: Boogie Preprocessor took 68.74 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 02:46:24,708 INFO L168 Benchmark]: RCFGBuilder took 1806.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.8 MB in the end (delta: 169.7 MB). Peak memory consumption was 169.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:24,709 INFO L168 Benchmark]: TraceAbstraction took 25450.62 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 249.0 MB). Free memory was 952.8 MB in the beginning and 983.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:24,709 INFO L168 Benchmark]: Witness Printer took 89.52 ms. Allocated memory is still 1.4 GB. Free memory was 983.6 MB in the beginning and 981.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:24,711 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 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 480.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.91 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 68.74 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 1806.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.8 MB in the end (delta: 169.7 MB). Peak memory consumption was 169.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25450.62 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 249.0 MB). Free memory was 952.8 MB in the beginning and 983.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. * Witness Printer took 89.52 ms. Allocated memory is still 1.4 GB. Free memory was 983.6 MB in the beginning and 981.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L649] int retValue_acc ; [L650] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) [L749] COND FALSE !(\read(pumpRunning)) [L756] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) [L812] int tmp ; [L837] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) [L806] pumpRunning = 1 [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) [L65] COND FALSE !(waterLevel < 2) [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) [L749] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L756] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND FALSE !(! pumpRunning) [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) [L749] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L756] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND FALSE !(! pumpRunning) [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __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: 25.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 109 SDslu, 213 SDs, 0 SdLazy, 176 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 5331 SizeOfPredicates, 74 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 45 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...