./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.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_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/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 fb1767f688fc9701e1f3b125f3120ace113b61a7 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:23:56,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:56,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:56,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:56,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:56,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:56,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:56,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:56,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:56,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:56,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:56,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:56,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:56,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:56,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:56,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:56,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:56,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:56,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:56,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:56,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:56,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:56,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:56,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:56,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:56,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:56,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:56,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:56,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:56,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:56,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:56,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:56,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:56,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:56,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:56,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:56,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:56,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:56,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:56,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:56,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:56,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:56,311 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:56,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:56,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:56,312 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:56,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:56,313 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:56,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:56,313 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:56,314 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:56,314 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:56,314 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:56,314 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:56,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:56,315 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:56,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:56,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:56,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:56,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:56,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:56,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:56,317 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:56,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:56,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:56,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:56,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:56,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:56,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:56,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:56,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:56,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:56,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:56,319 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:56,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:56,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:56,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:56,323 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_e3e72bad-00a4-49db-bf43-55fb6411d1c0/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 -> fb1767f688fc9701e1f3b125f3120ace113b61a7 [2019-10-22 11:23:56,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:56,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:56,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:56,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:56,395 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:56,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-10-22 11:23:56,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/data/7b18198e3/a6898e79b62e44baa903ace838a0b4dc/FLAGf93e9a738 [2019-10-22 11:23:56,893 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:56,894 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2019-10-22 11:23:56,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/data/7b18198e3/a6898e79b62e44baa903ace838a0b4dc/FLAGf93e9a738 [2019-10-22 11:23:57,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/data/7b18198e3/a6898e79b62e44baa903ace838a0b4dc [2019-10-22 11:23:57,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:57,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:57,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:57,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:57,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:57,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a74eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57, skipping insertion in model container [2019-10-22 11:23:57,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,225 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:57,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:57,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:57,704 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:57,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:57,840 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:57,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57 WrapperNode [2019-10-22 11:23:57,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:57,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:57,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:57,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:57,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:57,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:57,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:57,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:57,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:57,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:58,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:58,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:58,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... [2019-10-22 11:23:58,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:58,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:58,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:58,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:58,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/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 11:23:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:23:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:59,114 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:59,114 INFO L284 CfgBuilder]: Removed 202 assume(true) statements. [2019-10-22 11:23:59,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:59 BoogieIcfgContainer [2019-10-22 11:23:59,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:59,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:59,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:59,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:59,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:57" (1/3) ... [2019-10-22 11:23:59,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a95897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:59, skipping insertion in model container [2019-10-22 11:23:59,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:57" (2/3) ... [2019-10-22 11:23:59,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a95897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:59, skipping insertion in model container [2019-10-22 11:23:59,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:59" (3/3) ... [2019-10-22 11:23:59,122 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2019-10-22 11:23:59,128 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:59,134 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:23:59,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:23:59,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:59,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:59,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:59,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:59,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:59,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:59,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:59,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-10-22 11:23:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:23:59,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:59,187 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 11:23:59,189 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:59,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2019-10-22 11:23:59,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:59,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031358983] [2019-10-22 11:23:59,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:59,418 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 11:23:59,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031358983] [2019-10-22 11:23:59,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:59,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:59,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643028673] [2019-10-22 11:23:59,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:59,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:59,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:59,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:59,437 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-10-22 11:23:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:59,473 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2019-10-22 11:23:59,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:59,475 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:23:59,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:59,485 INFO L225 Difference]: With dead ends: 280 [2019-10-22 11:23:59,486 INFO L226 Difference]: Without dead ends: 139 [2019-10-22 11:23:59,489 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 11:23:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-22 11:23:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-10-22 11:23:59,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-22 11:23:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2019-10-22 11:23:59,531 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2019-10-22 11:23:59,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:59,531 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2019-10-22 11:23:59,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2019-10-22 11:23:59,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:23:59,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:59,533 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 11:23:59,533 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:59,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2019-10-22 11:23:59,534 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:59,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111570049] [2019-10-22 11:23:59,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:59,674 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 11:23:59,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111570049] [2019-10-22 11:23:59,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:59,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:23:59,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661720183] [2019-10-22 11:23:59,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:23:59,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:59,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:23:59,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:23:59,678 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2019-10-22 11:23:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:59,695 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2019-10-22 11:23:59,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:59,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:23:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:59,697 INFO L225 Difference]: With dead ends: 139 [2019-10-22 11:23:59,698 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 11:23:59,699 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 11:23:59,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 11:23:59,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 11:23:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 11:23:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-10-22 11:23:59,706 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-10-22 11:23:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:59,707 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-10-22 11:23:59,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:23:59,707 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-10-22 11:23:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:23:59,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:59,708 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 11:23:59,708 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:59,709 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2019-10-22 11:23:59,709 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:59,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326686359] [2019-10-22 11:23:59,709 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,709 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:59,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:59,847 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 11:23:59,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326686359] [2019-10-22 11:23:59,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:59,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:23:59,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278862614] [2019-10-22 11:23:59,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:23:59,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:59,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:23:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:23:59,852 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 6 states. [2019-10-22 11:24:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:00,176 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2019-10-22 11:24:00,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:00,177 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 11:24:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:00,179 INFO L225 Difference]: With dead ends: 184 [2019-10-22 11:24:00,179 INFO L226 Difference]: Without dead ends: 133 [2019-10-22 11:24:00,179 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-22 11:24:00,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2019-10-22 11:24:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-22 11:24:00,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2019-10-22 11:24:00,193 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2019-10-22 11:24:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:00,194 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2019-10-22 11:24:00,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2019-10-22 11:24:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:24:00,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:00,195 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] [2019-10-22 11:24:00,196 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2019-10-22 11:24:00,197 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:00,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48793117] [2019-10-22 11:24:00,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:00,273 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 11:24:00,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48793117] [2019-10-22 11:24:00,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:00,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:00,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407527374] [2019-10-22 11:24:00,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:00,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:00,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:00,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:00,278 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2019-10-22 11:24:00,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:00,353 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2019-10-22 11:24:00,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:00,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:24:00,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:00,355 INFO L225 Difference]: With dead ends: 173 [2019-10-22 11:24:00,355 INFO L226 Difference]: Without dead ends: 101 [2019-10-22 11:24:00,356 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 11:24:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-10-22 11:24:00,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-10-22 11:24:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-22 11:24:00,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-10-22 11:24:00,369 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2019-10-22 11:24:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:00,370 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-10-22 11:24:00,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-10-22 11:24:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:24:00,371 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:00,371 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 11:24:00,371 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:00,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2019-10-22 11:24:00,372 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:00,372 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330270697] [2019-10-22 11:24:00,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:00,442 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 11:24:00,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330270697] [2019-10-22 11:24:00,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:00,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:00,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709880702] [2019-10-22 11:24:00,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:00,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:00,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:00,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:00,444 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2019-10-22 11:24:00,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:00,592 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2019-10-22 11:24:00,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:00,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:24:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:00,595 INFO L225 Difference]: With dead ends: 515 [2019-10-22 11:24:00,595 INFO L226 Difference]: Without dead ends: 422 [2019-10-22 11:24:00,597 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 11:24:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-22 11:24:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2019-10-22 11:24:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-22 11:24:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2019-10-22 11:24:00,621 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2019-10-22 11:24:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:00,621 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2019-10-22 11:24:00,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2019-10-22 11:24:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:24:00,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:00,623 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 11:24:00,623 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2019-10-22 11:24:00,624 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:00,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17906631] [2019-10-22 11:24:00,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,625 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:00,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:01,734 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:24:01,735 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:24:01,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:01 BoogieIcfgContainer [2019-10-22 11:24:01,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:01,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:01,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:01,831 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:01,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:59" (3/4) ... [2019-10-22 11:24:01,834 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:24:01,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3e72bad-00a4-49db-bf43-55fb6411d1c0/bin/utaipan/witness.graphml [2019-10-22 11:24:01,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:01,920 INFO L168 Benchmark]: Toolchain (without parser) took 4709.90 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.1 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,921 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:01,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.38 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. [2019-10-22 11:24:01,922 INFO L168 Benchmark]: Boogie Preprocessor took 84.77 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,922 INFO L168 Benchmark]: RCFGBuilder took 1068.45 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: 79.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,922 INFO L168 Benchmark]: TraceAbstraction took 2713.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -57.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,923 INFO L168 Benchmark]: Witness Printer took 87.75 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:01,925 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.38 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 84.77 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1068.45 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: 79.1 MB). Peak memory consumption was 79.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2713.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -57.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 87.75 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L987] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L994] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L776] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L783] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L694] __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, 143 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 743 SDslu, 733 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, 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, 5 MinimizatonAttempts, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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...