./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/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 1e304dec1a19556a559249c7b1ef76290bc8b678 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:35:36,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:35:36,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:35:36,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:35:36,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:35:36,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:35:36,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:35:36,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:35:36,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:35:36,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:35:36,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:35:36,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:35:36,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:35:36,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:35:36,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:35:36,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:35:36,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:35:36,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:35:36,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:35:36,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:35:36,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:35:36,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:35:36,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:35:36,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:35:36,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:35:36,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:35:36,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:35:36,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:35:36,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:35:36,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:35:36,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:35:36,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:35:36,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:35:36,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:35:36,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:35:36,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:35:36,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:35:36,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:35:36,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:35:36,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:35:36,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:35:36,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:35:36,924 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:35:36,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:35:36,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:35:36,925 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:35:36,925 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:35:36,926 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:35:36,927 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:35:36,927 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:35:36,927 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:35:36,927 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:35:36,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:35:36,928 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:35:36,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:35:36,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:35:36,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:35:36,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:35:36,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:35:36,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:35:36,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:35:36,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:35:36,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:35:36,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:35:36,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:35:36,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:35:36,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:35:36,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:35:36,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:35:36,931 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_76302cdc-352f-4690-bedc-58ac9bafce55/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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2019-11-26 02:35:37,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:35:37,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:35:37,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:35:37,089 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:35:37,089 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:35:37,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-26 02:35:37,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/data/5a6c255ef/52e12134ae18428e93921ff07cdf402e/FLAG98346e86e [2019-11-26 02:35:37,639 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:35:37,640 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-26 02:35:37,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/data/5a6c255ef/52e12134ae18428e93921ff07cdf402e/FLAG98346e86e [2019-11-26 02:35:37,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/data/5a6c255ef/52e12134ae18428e93921ff07cdf402e [2019-11-26 02:35:37,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:35:37,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:35:37,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:37,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:35:37,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:35:37,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:37" (1/1) ... [2019-11-26 02:35:37,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b19dd1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:37, skipping insertion in model container [2019-11-26 02:35:37,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:37" (1/1) ... [2019-11-26 02:35:37,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:35:37,999 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:35:38,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:38,326 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:35:38,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:38,479 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:35:38,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38 WrapperNode [2019-11-26 02:35:38,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:38,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:38,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:35:38,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:35:38,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:38,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:35:38,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:35:38,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:35:38,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... [2019-11-26 02:35:38,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:35:38,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:35:38,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:35:38,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:35:38,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/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 02:35:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:35:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:35:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:35:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:35:40,379 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:35:40,380 INFO L284 CfgBuilder]: Removed 122 assume(true) statements. [2019-11-26 02:35:40,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:40 BoogieIcfgContainer [2019-11-26 02:35:40,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:35:40,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:35:40,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:35:40,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:35:40,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:35:37" (1/3) ... [2019-11-26 02:35:40,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3aca55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:40, skipping insertion in model container [2019-11-26 02:35:40,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:38" (2/3) ... [2019-11-26 02:35:40,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3aca55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:40, skipping insertion in model container [2019-11-26 02:35:40,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:40" (3/3) ... [2019-11-26 02:35:40,389 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2019-11-26 02:35:40,398 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:35:40,406 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:35:40,416 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:35:40,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:35:40,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:35:40,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:35:40,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:35:40,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:35:40,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:35:40,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:35:40,443 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:35:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:35:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:35:40,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:40,467 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:40,467 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:40,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2000257870, now seen corresponding path program 1 times [2019-11-26 02:35:40,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:40,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824560386] [2019-11-26 02:35:40,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:40,776 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 02:35:40,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824560386] [2019-11-26 02:35:40,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:40,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:35:40,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391610038] [2019-11-26 02:35:40,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:35:40,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:40,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:35:40,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:35:40,799 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-26 02:35:40,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:40,819 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-26 02:35:40,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:35:40,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:35:40,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:40,834 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:35:40,835 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:35:40,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:35:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:35:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-26 02:35:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:35:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-26 02:35:40,881 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-26 02:35:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:40,882 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-26 02:35:40,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:35:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:35:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:35:40,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:40,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:40,884 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1180981375, now seen corresponding path program 1 times [2019-11-26 02:35:40,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:40,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943011204] [2019-11-26 02:35:40,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:41,042 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 02:35:41,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943011204] [2019-11-26 02:35:41,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:41,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:35:41,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748118587] [2019-11-26 02:35:41,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:35:41,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:41,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:35:41,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:35:41,045 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 3 states. [2019-11-26 02:35:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:41,128 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2019-11-26 02:35:41,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:35:41,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:35:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:41,130 INFO L225 Difference]: With dead ends: 46 [2019-11-26 02:35:41,130 INFO L226 Difference]: Without dead ends: 40 [2019-11-26 02:35:41,131 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:35:41,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-26 02:35:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-26 02:35:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-26 02:35:41,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-26 02:35:41,140 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-26 02:35:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:41,140 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-26 02:35:41,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:35:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-26 02:35:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:35:41,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:41,142 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-26 02:35:41,143 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:41,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:41,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1465795332, now seen corresponding path program 1 times [2019-11-26 02:35:41,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:41,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306201787] [2019-11-26 02:35:41,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:35:41,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306201787] [2019-11-26 02:35:41,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152426366] [2019-11-26 02:35:41,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/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 02:35:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:41,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-26 02:35:41,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:35:41,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:35:41,632 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:35:41,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,660 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:35:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:35:41,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-26 02:35:41,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 7 [2019-11-26 02:35:41,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646814968] [2019-11-26 02:35:41,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:35:41,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:41,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:35:41,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:35:41,779 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 7 states. [2019-11-26 02:35:42,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:42,107 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2019-11-26 02:35:42,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:35:42,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-26 02:35:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:42,110 INFO L225 Difference]: With dead ends: 117 [2019-11-26 02:35:42,110 INFO L226 Difference]: Without dead ends: 79 [2019-11-26 02:35:42,111 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:35:42,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-26 02:35:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2019-11-26 02:35:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-26 02:35:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2019-11-26 02:35:42,128 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 13 [2019-11-26 02:35:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:42,129 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2019-11-26 02:35:42,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:35:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2019-11-26 02:35:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:35:42,131 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:42,131 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:35:42,335 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:35:42,336 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:42,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1081336078, now seen corresponding path program 1 times [2019-11-26 02:35:42,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:42,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081800602] [2019-11-26 02:35:42,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:35:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:35:42,688 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:35:42,689 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:35:42,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:35:42 BoogieIcfgContainer [2019-11-26 02:35:42,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:35:42,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:35:42,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:35:42,798 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:35:42,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:40" (3/4) ... [2019-11-26 02:35:42,800 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:35:42,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76302cdc-352f-4690-bedc-58ac9bafce55/bin/utaipan/witness.graphml [2019-11-26 02:35:42,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:35:42,898 INFO L168 Benchmark]: Toolchain (without parser) took 4957.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 63.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:42,898 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:42,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:42,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.29 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 02:35:42,899 INFO L168 Benchmark]: Boogie Preprocessor took 49.75 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:42,900 INFO L168 Benchmark]: RCFGBuilder took 1778.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 174.3 MB). Peak memory consumption was 174.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:42,900 INFO L168 Benchmark]: TraceAbstraction took 2415.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.1 MB). Free memory was 929.4 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:42,901 INFO L168 Benchmark]: Witness Printer took 98.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:42,902 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.29 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. * Boogie Preprocessor took 49.75 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1778.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.4 MB in the end (delta: 174.3 MB). Peak memory consumption was 174.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2415.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 88.1 MB). Free memory was 929.4 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 98.37 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L439] int retValue_acc ; [L440] int tmp ; [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) [L467] methAndRunningLastTime = 0 [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L582] int retValue_acc ; [L585] COND FALSE !(waterLevel < 2) [L589] retValue_acc = 0 [L590] return (retValue_acc); [L290] tmp = isHighWaterSensorDry() [L292] COND FALSE !(\read(tmp)) [L295] tmp___0 = 1 [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); [L174] tmp = isHighWaterLevel() [L176] COND TRUE \read(tmp) [L203] int tmp ; [L228] int retValue_acc ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L232] retValue_acc = isMethaneLevelCritical() [L234] return (retValue_acc); [L207] tmp = isMethaneAlarm() [L209] COND FALSE !(\read(tmp)) [L197] pumpRunning = 1 [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) [L520] COND FALSE !(waterLevel < 2) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) [L532] COND FALSE !(\read(methaneLevelCritical)) [L535] methaneLevelCritical = 1 [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) [L140] COND TRUE \read(pumpRunning) [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND FALSE !(! pumpRunning) [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L484] COND FALSE !(\read(methAndRunningLastTime)) [L489] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND FALSE !(\read(tmp___1)) [L140] COND TRUE \read(pumpRunning) [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND FALSE !(! pumpRunning) [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L484] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 57 SDslu, 118 SDs, 0 SdLazy, 100 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=3, 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, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 SizeOfPredicates, 46 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 10/15 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...