./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/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 525453629ce87b69ed1d4100e13fdb9e0c8a872a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 11:26:30,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:30,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:30,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:30,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:30,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:30,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:30,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:30,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:30,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:30,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:30,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:30,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:30,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:30,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:30,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:30,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:30,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:30,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:30,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:30,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:30,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:30,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:30,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:30,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:30,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:30,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:30,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:30,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:30,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:30,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:30,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:30,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:30,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:30,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:30,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:30,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:30,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:30,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:30,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:30,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:30,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:30,542 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:30,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:30,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:30,543 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:30,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:30,543 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:30,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:30,544 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:30,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:30,544 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:30,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:30,545 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:30,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:30,545 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:30,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:30,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:30,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:30,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:30,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:30,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:30,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:30,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:30,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:30,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:30,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:30,549 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:30,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:30,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:30,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:30,549 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/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2019-10-22 11:26:30,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:30,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:30,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:30,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:30,585 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:30,586 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-10-22 11:26:30,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/data/f223ea5f3/13ddcdbac0ba43f9b11741ff48b03785/FLAGe02e2d172 [2019-10-22 11:26:31,091 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:31,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-10-22 11:26:31,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/data/f223ea5f3/13ddcdbac0ba43f9b11741ff48b03785/FLAGe02e2d172 [2019-10-22 11:26:31,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/data/f223ea5f3/13ddcdbac0ba43f9b11741ff48b03785 [2019-10-22 11:26:31,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:31,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:31,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:31,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:31,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:31,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b6f240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31, skipping insertion in model container [2019-10-22 11:26:31,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,139 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:31,188 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:31,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,507 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:31,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,605 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:31,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31 WrapperNode [2019-10-22 11:26:31,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:31,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:31,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:31,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:31,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:31,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:31,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:31,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:31,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/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 [2019-10-22 11:26:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:26:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:32,737 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:32,737 INFO L284 CfgBuilder]: Removed 288 assume(true) statements. [2019-10-22 11:26:32,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32 BoogieIcfgContainer [2019-10-22 11:26:32,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:32,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:32,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:32,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:32,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:31" (1/3) ... [2019-10-22 11:26:32,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53455e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (2/3) ... [2019-10-22 11:26:32,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53455e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/3) ... [2019-10-22 11:26:32,744 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2019-10-22 11:26:32,751 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:32,758 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:26:32,764 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:26:32,789 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:32,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:32,789 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:32,789 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:32,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:32,790 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:32,790 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:32,790 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-10-22 11:26:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:26:32,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:32,814 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:32,816 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:32,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2019-10-22 11:26:32,828 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:32,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027679499] [2019-10-22 11:26:32,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:32,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:32,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,018 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027679499] [2019-10-22 11:26:33,019 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,020 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:33,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380331646] [2019-10-22 11:26:33,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:33,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:33,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:33,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:33,039 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-10-22 11:26:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,084 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-10-22 11:26:33,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:33,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:26:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,098 INFO L225 Difference]: With dead ends: 388 [2019-10-22 11:26:33,098 INFO L226 Difference]: Without dead ends: 193 [2019-10-22 11:26:33,101 INFO L600 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 [2019-10-22 11:26:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-22 11:26:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-10-22 11:26:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-22 11:26:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-10-22 11:26:33,148 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-10-22 11:26:33,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,148 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-10-22 11:26:33,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-10-22 11:26:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:26:33,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,149 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:33,150 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2019-10-22 11:26:33,150 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:33,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927228030] [2019-10-22 11:26:33,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927228030] [2019-10-22 11:26:33,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:33,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292681823] [2019-10-22 11:26:33,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:33,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:33,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:33,252 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2019-10-22 11:26:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,271 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-10-22 11:26:33,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:33,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:26:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,273 INFO L225 Difference]: With dead ends: 193 [2019-10-22 11:26:33,273 INFO L226 Difference]: Without dead ends: 75 [2019-10-22 11:26:33,274 INFO L600 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 [2019-10-22 11:26:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-10-22 11:26:33,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-10-22 11:26:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:26:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-10-22 11:26:33,286 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-10-22 11:26:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,286 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-10-22 11:26:33,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-10-22 11:26:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:26:33,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,288 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:33,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2019-10-22 11:26:33,289 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:33,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149414914] [2019-10-22 11:26:33,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149414914] [2019-10-22 11:26:33,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:26:33,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105686207] [2019-10-22 11:26:33,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:33,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:33,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:33,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:33,420 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 5 states. [2019-10-22 11:26:33,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,494 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2019-10-22 11:26:33,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:26:33,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-22 11:26:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,496 INFO L225 Difference]: With dead ends: 169 [2019-10-22 11:26:33,497 INFO L226 Difference]: Without dead ends: 100 [2019-10-22 11:26:33,497 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:33,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-22 11:26:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2019-10-22 11:26:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 11:26:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2019-10-22 11:26:33,511 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2019-10-22 11:26:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,511 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2019-10-22 11:26:33,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:33,512 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2019-10-22 11:26:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:26:33,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,513 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:33,513 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2019-10-22 11:26:33,514 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:33,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791615696] [2019-10-22 11:26:33,514 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,514 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791615696] [2019-10-22 11:26:33,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:33,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776652301] [2019-10-22 11:26:33,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:33,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:33,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:33,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:33,582 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2019-10-22 11:26:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,640 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2019-10-22 11:26:33,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:33,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:26:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:33,641 INFO L225 Difference]: With dead ends: 197 [2019-10-22 11:26:33,641 INFO L226 Difference]: Without dead ends: 107 [2019-10-22 11:26:33,642 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-22 11:26:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2019-10-22 11:26:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-22 11:26:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2019-10-22 11:26:33,654 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2019-10-22 11:26:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:33,654 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2019-10-22 11:26:33,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:33,655 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2019-10-22 11:26:33,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:26:33,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:33,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:33,656 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:33,657 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2019-10-22 11:26:33,657 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:33,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729325169] [2019-10-22 11:26:33,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:33,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:33,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729325169] [2019-10-22 11:26:33,732 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:33,732 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:26:33,732 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824426263] [2019-10-22 11:26:33,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:26:33,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:33,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:26:33,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:33,733 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 5 states. [2019-10-22 11:26:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:33,999 INFO L93 Difference]: Finished difference Result 533 states and 778 transitions. [2019-10-22 11:26:34,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:26:34,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:26:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:34,003 INFO L225 Difference]: With dead ends: 533 [2019-10-22 11:26:34,004 INFO L226 Difference]: Without dead ends: 434 [2019-10-22 11:26:34,006 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:26:34,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-22 11:26:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 171. [2019-10-22 11:26:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 11:26:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 239 transitions. [2019-10-22 11:26:34,046 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 239 transitions. Word has length 27 [2019-10-22 11:26:34,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:34,047 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 239 transitions. [2019-10-22 11:26:34,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:26:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 239 transitions. [2019-10-22 11:26:34,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:34,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:34,052 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:34,052 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:34,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:34,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2019-10-22 11:26:34,053 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:34,053 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959655813] [2019-10-22 11:26:34,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:34,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:34,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:34,826 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:34,826 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:34,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:34 BoogieIcfgContainer [2019-10-22 11:26:34,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:34,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:34,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:34,907 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:34,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/4) ... [2019-10-22 11:26:34,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:26:34,998 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0eea88e3-674c-4a11-ba27-832dac6e483a/bin/utaipan/witness.graphml [2019-10-22 11:26:35,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:35,003 INFO L168 Benchmark]: Toolchain (without parser) took 3879.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.1 MB in the beginning and 977.7 MB in the end (delta: -34.6 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,005 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:35,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.13 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. [2019-10-22 11:26:35,009 INFO L168 Benchmark]: Boogie Preprocessor took 66.26 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,009 INFO L168 Benchmark]: RCFGBuilder took 987.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,009 INFO L168 Benchmark]: TraceAbstraction took 2167.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 991.8 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,010 INFO L168 Benchmark]: Witness Printer took 95.35 ms. Allocated memory is still 1.2 GB. Free memory was 991.8 MB in the beginning and 977.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:35,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 479.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.7 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.13 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 66.26 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 987.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2167.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 991.8 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 95.35 ms. Allocated memory is still 1.2 GB. Free memory was 991.8 MB in the beginning and 977.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L920] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L708] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1013] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 197 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 751 SDtfs, 885 SDslu, 457 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 269 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...