./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.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_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/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 9a3c61d639fd43ae1669bec68db6e5c2c107a6dc ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:36,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:36,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:36,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:36,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:36,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:36,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:36,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:36,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:36,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:36,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:36,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:36,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:36,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:36,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:36,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:36,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:36,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:36,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:36,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:36,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:36,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:36,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:36,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:36,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:36,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:36,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:36,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:36,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:36,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:36,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:36,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:36,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:36,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:36,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:36,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:36,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:36,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:36,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:36,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:36,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:36,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:36,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:36,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:36,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:36,458 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:36,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:36,459 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:36,459 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:36,459 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:36,459 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:36,459 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:36,460 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:36,460 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:36,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:36,460 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:36,461 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:36,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:36,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:36,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:36,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:36,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:36,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:36,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:36,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:36,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:36,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:36,465 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:36,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:36,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:36,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:36,465 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_9c813316-6983-4ece-80dc-669cba4079a7/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 -> 9a3c61d639fd43ae1669bec68db6e5c2c107a6dc [2019-10-22 11:25:36,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:36,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:36,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:36,515 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:36,515 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:36,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2019-10-22 11:25:36,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/data/9bbba945d/f3988448c47647a19a17ca3800c1f20e/FLAG693deacd5 [2019-10-22 11:25:37,014 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:37,018 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2019-10-22 11:25:37,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/data/9bbba945d/f3988448c47647a19a17ca3800c1f20e/FLAG693deacd5 [2019-10-22 11:25:37,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/data/9bbba945d/f3988448c47647a19a17ca3800c1f20e [2019-10-22 11:25:37,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:37,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:37,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:37,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:37,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:37,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798bea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37, skipping insertion in model container [2019-10-22 11:25:37,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,346 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:37,397 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:37,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:37,821 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:37,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:37,984 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:37,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37 WrapperNode [2019-10-22 11:25:37,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:37,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:37,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:37,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:37,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:38,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:38,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:38,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:38,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:38,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:38,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:38,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:38,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/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 11:25:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:25:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:38,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:38,951 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-10-22 11:25:38,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38 BoogieIcfgContainer [2019-10-22 11:25:38,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:38,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:38,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:38,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:38,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:37" (1/3) ... [2019-10-22 11:25:38,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d333d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:38, skipping insertion in model container [2019-10-22 11:25:38,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (2/3) ... [2019-10-22 11:25:38,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d333d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:38, skipping insertion in model container [2019-10-22 11:25:38,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38" (3/3) ... [2019-10-22 11:25:38,962 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2019-10-22 11:25:38,972 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:38,983 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:38,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:39,029 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:39,029 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:39,029 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:39,029 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:39,029 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:39,029 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:39,029 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:39,030 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-10-22 11:25:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:25:39,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,055 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 11:25:39,057 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1255950434, now seen corresponding path program 1 times [2019-10-22 11:25:39,070 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:39,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791396109] [2019-10-22 11:25:39,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:39,309 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 11:25:39,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791396109] [2019-10-22 11:25:39,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:39,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:39,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030811550] [2019-10-22 11:25:39,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:25:39,316 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:39,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:25:39,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:39,332 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-10-22 11:25:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:39,364 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2019-10-22 11:25:39,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:25:39,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:25:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:39,380 INFO L225 Difference]: With dead ends: 227 [2019-10-22 11:25:39,380 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 11:25:39,383 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 11:25:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 11:25:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-22 11:25:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-22 11:25:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions. [2019-10-22 11:25:39,422 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 18 [2019-10-22 11:25:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:39,423 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 166 transitions. [2019-10-22 11:25:39,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:25:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions. [2019-10-22 11:25:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:25:39,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,424 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 11:25:39,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1139511005, now seen corresponding path program 1 times [2019-10-22 11:25:39,425 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:39,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117091260] [2019-10-22 11:25:39,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:39,542 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 11:25:39,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117091260] [2019-10-22 11:25:39,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:39,543 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:39,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915551876] [2019-10-22 11:25:39,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:39,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:39,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:39,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:39,545 INFO L87 Difference]: Start difference. First operand 113 states and 166 transitions. Second operand 3 states. [2019-10-22 11:25:39,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:39,557 INFO L93 Difference]: Finished difference Result 113 states and 166 transitions. [2019-10-22 11:25:39,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:39,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:25:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:39,558 INFO L225 Difference]: With dead ends: 113 [2019-10-22 11:25:39,559 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:25:39,560 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 11:25:39,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:25:39,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-22 11:25:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 11:25:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-10-22 11:25:39,565 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-10-22 11:25:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:39,565 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-10-22 11:25:39,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-10-22 11:25:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:25:39,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,566 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 11:25:39,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2074006335, now seen corresponding path program 1 times [2019-10-22 11:25:39,567 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:39,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190834141] [2019-10-22 11:25:39,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,568 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:39,639 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 11:25:39,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190834141] [2019-10-22 11:25:39,639 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:39,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:39,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659825190] [2019-10-22 11:25:39,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:39,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:39,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:39,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:39,641 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-10-22 11:25:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:39,658 INFO L93 Difference]: Finished difference Result 133 states and 199 transitions. [2019-10-22 11:25:39,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:39,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:25:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:39,660 INFO L225 Difference]: With dead ends: 133 [2019-10-22 11:25:39,660 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 11:25:39,661 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 11:25:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 11:25:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2019-10-22 11:25:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:25:39,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 130 transitions. [2019-10-22 11:25:39,672 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 130 transitions. Word has length 24 [2019-10-22 11:25:39,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:39,672 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 130 transitions. [2019-10-22 11:25:39,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2019-10-22 11:25:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:39,673 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,673 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 11:25:39,674 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1559751670, now seen corresponding path program 1 times [2019-10-22 11:25:39,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:39,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97399624] [2019-10-22 11:25:39,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:39,749 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 11:25:39,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97399624] [2019-10-22 11:25:39,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:39,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:39,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484934786] [2019-10-22 11:25:39,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:39,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:39,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:39,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:39,751 INFO L87 Difference]: Start difference. First operand 87 states and 130 transitions. Second operand 3 states. [2019-10-22 11:25:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:39,837 INFO L93 Difference]: Finished difference Result 210 states and 319 transitions. [2019-10-22 11:25:39,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:39,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:25:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:39,839 INFO L225 Difference]: With dead ends: 210 [2019-10-22 11:25:39,839 INFO L226 Difference]: Without dead ends: 130 [2019-10-22 11:25:39,840 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 11:25:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-22 11:25:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2019-10-22 11:25:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-22 11:25:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 188 transitions. [2019-10-22 11:25:39,854 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 188 transitions. Word has length 26 [2019-10-22 11:25:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:39,854 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 188 transitions. [2019-10-22 11:25:39,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 188 transitions. [2019-10-22 11:25:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:25:39,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:39,855 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 11:25:39,855 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:39,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1899452984, now seen corresponding path program 1 times [2019-10-22 11:25:39,856 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:39,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446181753] [2019-10-22 11:25:39,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:39,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:39,959 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 11:25:39,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446181753] [2019-10-22 11:25:39,960 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:39,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:39,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388972337] [2019-10-22 11:25:39,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:39,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:39,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:39,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:39,961 INFO L87 Difference]: Start difference. First operand 128 states and 188 transitions. Second operand 5 states. [2019-10-22 11:25:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:40,134 INFO L93 Difference]: Finished difference Result 628 states and 933 transitions. [2019-10-22 11:25:40,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:25:40,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:25:40,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:40,138 INFO L225 Difference]: With dead ends: 628 [2019-10-22 11:25:40,141 INFO L226 Difference]: Without dead ends: 507 [2019-10-22 11:25:40,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2019-10-22 11:25:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 235. [2019-10-22 11:25:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-10-22 11:25:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 340 transitions. [2019-10-22 11:25:40,198 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 340 transitions. Word has length 27 [2019-10-22 11:25:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:40,198 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 340 transitions. [2019-10-22 11:25:40,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 340 transitions. [2019-10-22 11:25:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:25:40,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:40,200 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 11:25:40,200 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:40,200 INFO L82 PathProgramCache]: Analyzing trace with hash 961369152, now seen corresponding path program 1 times [2019-10-22 11:25:40,200 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:40,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996459190] [2019-10-22 11:25:40,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:40,270 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 11:25:40,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996459190] [2019-10-22 11:25:40,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:40,272 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:40,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543021014] [2019-10-22 11:25:40,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:40,273 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:40,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:40,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:40,274 INFO L87 Difference]: Start difference. First operand 235 states and 340 transitions. Second operand 5 states. [2019-10-22 11:25:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:40,470 INFO L93 Difference]: Finished difference Result 889 states and 1291 transitions. [2019-10-22 11:25:40,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:25:40,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-10-22 11:25:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:40,476 INFO L225 Difference]: With dead ends: 889 [2019-10-22 11:25:40,476 INFO L226 Difference]: Without dead ends: 661 [2019-10-22 11:25:40,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-10-22 11:25:40,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 233. [2019-10-22 11:25:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-22 11:25:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2019-10-22 11:25:40,519 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 28 [2019-10-22 11:25:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:40,525 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2019-10-22 11:25:40,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2019-10-22 11:25:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:40,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:40,527 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, 1, 1, 1, 1, 1] [2019-10-22 11:25:40,527 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:40,528 INFO L82 PathProgramCache]: Analyzing trace with hash 2078564813, now seen corresponding path program 1 times [2019-10-22 11:25:40,528 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:40,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034369773] [2019-10-22 11:25:40,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:40,605 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 11:25:40,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034369773] [2019-10-22 11:25:40,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:40,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:40,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672164573] [2019-10-22 11:25:40,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:40,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:40,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:40,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:40,609 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand 5 states. [2019-10-22 11:25:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:40,698 INFO L93 Difference]: Finished difference Result 639 states and 901 transitions. [2019-10-22 11:25:40,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:40,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-10-22 11:25:40,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:40,701 INFO L225 Difference]: With dead ends: 639 [2019-10-22 11:25:40,701 INFO L226 Difference]: Without dead ends: 413 [2019-10-22 11:25:40,702 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:40,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-22 11:25:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 257. [2019-10-22 11:25:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-10-22 11:25:40,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2019-10-22 11:25:40,725 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 358 transitions. Word has length 33 [2019-10-22 11:25:40,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:40,726 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 358 transitions. [2019-10-22 11:25:40,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 358 transitions. [2019-10-22 11:25:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:40,732 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:40,732 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, 1, 1, 1, 1, 1] [2019-10-22 11:25:40,732 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:40,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:40,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1515337905, now seen corresponding path program 1 times [2019-10-22 11:25:40,733 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:40,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921526239] [2019-10-22 11:25:40,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:40,784 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 11:25:40,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921526239] [2019-10-22 11:25:40,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:40,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:40,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323653075] [2019-10-22 11:25:40,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:40,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:40,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:40,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:40,786 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. Second operand 4 states. [2019-10-22 11:25:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:40,858 INFO L93 Difference]: Finished difference Result 627 states and 863 transitions. [2019-10-22 11:25:40,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:40,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 11:25:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:40,860 INFO L225 Difference]: With dead ends: 627 [2019-10-22 11:25:40,860 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 11:25:40,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 11:25:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2019-10-22 11:25:40,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-10-22 11:25:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2019-10-22 11:25:40,886 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 33 [2019-10-22 11:25:40,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:40,886 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2019-10-22 11:25:40,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2019-10-22 11:25:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:25:40,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:40,888 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, 1, 1, 1, 1, 1] [2019-10-22 11:25:40,888 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:40,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2102143919, now seen corresponding path program 1 times [2019-10-22 11:25:40,889 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:40,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563266519] [2019-10-22 11:25:40,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:40,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:40,931 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 11:25:40,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563266519] [2019-10-22 11:25:40,932 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:40,932 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:40,932 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561935471] [2019-10-22 11:25:40,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:40,933 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:40,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:40,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:40,933 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand 3 states. [2019-10-22 11:25:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:41,015 INFO L93 Difference]: Finished difference Result 643 states and 875 transitions. [2019-10-22 11:25:41,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:41,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 11:25:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:41,021 INFO L225 Difference]: With dead ends: 643 [2019-10-22 11:25:41,021 INFO L226 Difference]: Without dead ends: 377 [2019-10-22 11:25:41,022 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 11:25:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-22 11:25:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-22 11:25:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-22 11:25:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 500 transitions. [2019-10-22 11:25:41,062 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 500 transitions. Word has length 33 [2019-10-22 11:25:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:41,063 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 500 transitions. [2019-10-22 11:25:41,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 500 transitions. [2019-10-22 11:25:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:25:41,064 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:41,064 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, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:41,064 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:41,065 INFO L82 PathProgramCache]: Analyzing trace with hash -207511791, now seen corresponding path program 1 times [2019-10-22 11:25:41,065 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:41,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676556787] [2019-10-22 11:25:41,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,065 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:41,121 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 11:25:41,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676556787] [2019-10-22 11:25:41,122 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:41,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:41,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990563878] [2019-10-22 11:25:41,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:41,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:41,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:41,123 INFO L87 Difference]: Start difference. First operand 377 states and 500 transitions. Second operand 3 states. [2019-10-22 11:25:41,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:41,175 INFO L93 Difference]: Finished difference Result 579 states and 775 transitions. [2019-10-22 11:25:41,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:41,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 11:25:41,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:41,178 INFO L225 Difference]: With dead ends: 579 [2019-10-22 11:25:41,178 INFO L226 Difference]: Without dead ends: 577 [2019-10-22 11:25:41,179 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 11:25:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-22 11:25:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 460. [2019-10-22 11:25:41,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-22 11:25:41,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 624 transitions. [2019-10-22 11:25:41,209 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 624 transitions. Word has length 34 [2019-10-22 11:25:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:41,209 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 624 transitions. [2019-10-22 11:25:41,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:41,209 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 624 transitions. [2019-10-22 11:25:41,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-22 11:25:41,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:41,211 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:41,211 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:41,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1115593900, now seen corresponding path program 1 times [2019-10-22 11:25:41,212 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:41,212 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487523407] [2019-10-22 11:25:41,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 11:25:41,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487523407] [2019-10-22 11:25:41,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:41,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:41,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108065096] [2019-10-22 11:25:41,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:41,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:41,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:41,246 INFO L87 Difference]: Start difference. First operand 460 states and 624 transitions. Second operand 3 states. [2019-10-22 11:25:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:41,301 INFO L93 Difference]: Finished difference Result 552 states and 745 transitions. [2019-10-22 11:25:41,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:41,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-22 11:25:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:41,303 INFO L225 Difference]: With dead ends: 552 [2019-10-22 11:25:41,304 INFO L226 Difference]: Without dead ends: 228 [2019-10-22 11:25:41,304 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 11:25:41,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-10-22 11:25:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-10-22 11:25:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-10-22 11:25:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 297 transitions. [2019-10-22 11:25:41,320 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 297 transitions. Word has length 54 [2019-10-22 11:25:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:41,322 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 297 transitions. [2019-10-22 11:25:41,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 297 transitions. [2019-10-22 11:25:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-22 11:25:41,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:41,323 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2019-10-22 11:25:41,323 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:41,324 INFO L82 PathProgramCache]: Analyzing trace with hash -540947520, now seen corresponding path program 1 times [2019-10-22 11:25:41,324 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:41,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864070915] [2019-10-22 11:25:41,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:41,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:25:41,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864070915] [2019-10-22 11:25:41,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677104309] [2019-10-22 11:25:41,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:41,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:25:41,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:25:41,644 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:25:41,702 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:25:41,702 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 12 [2019-10-22 11:25:41,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023770645] [2019-10-22 11:25:41,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:41,705 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:41,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:41,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:25:41,705 INFO L87 Difference]: Start difference. First operand 228 states and 297 transitions. Second operand 6 states. [2019-10-22 11:25:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:41,919 INFO L93 Difference]: Finished difference Result 720 states and 937 transitions. [2019-10-22 11:25:41,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 11:25:41,920 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2019-10-22 11:25:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:41,922 INFO L225 Difference]: With dead ends: 720 [2019-10-22 11:25:41,922 INFO L226 Difference]: Without dead ends: 499 [2019-10-22 11:25:41,923 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:25:41,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2019-10-22 11:25:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 205. [2019-10-22 11:25:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-10-22 11:25:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 260 transitions. [2019-10-22 11:25:41,945 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 260 transitions. Word has length 56 [2019-10-22 11:25:41,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:41,945 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 260 transitions. [2019-10-22 11:25:41,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 260 transitions. [2019-10-22 11:25:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-22 11:25:41,946 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:41,946 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:42,147 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:42,147 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:42,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:42,148 INFO L82 PathProgramCache]: Analyzing trace with hash -2106888905, now seen corresponding path program 1 times [2019-10-22 11:25:42,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:42,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22830938] [2019-10-22 11:25:42,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:42,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:42,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:42,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22830938] [2019-10-22 11:25:42,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15913444] [2019-10-22 11:25:42,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:42,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 11:25:42,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:42,329 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:42,342 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:25:42,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2019-10-22 11:25:42,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228785698] [2019-10-22 11:25:42,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:42,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:42,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:42,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:42,344 INFO L87 Difference]: Start difference. First operand 205 states and 260 transitions. Second operand 3 states. [2019-10-22 11:25:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:42,401 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2019-10-22 11:25:42,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:42,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-22 11:25:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:42,402 INFO L225 Difference]: With dead ends: 325 [2019-10-22 11:25:42,402 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:42,402 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:42,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:42,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:42,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-10-22 11:25:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:42,403 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:42,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:42,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:42,604 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:25:42,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:43,249 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 98 [2019-10-22 11:25:43,431 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2019-10-22 11:25:43,676 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2019-10-22 11:25:43,808 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 109 [2019-10-22 11:25:44,059 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 20 [2019-10-22 11:25:44,426 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2019-10-22 11:25:44,728 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 22 [2019-10-22 11:25:44,836 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2019-10-22 11:25:45,107 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2019-10-22 11:25:45,481 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 30 [2019-10-22 11:25:45,767 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-10-22 11:25:46,235 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 26 [2019-10-22 11:25:46,525 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 30 [2019-10-22 11:25:46,705 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135(lines 126 139) the Hoare annotation is: false [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135-1(lines 126 139) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse0 .cse1 .cse2)) (and .cse0 .cse3 .cse1 (= 0 ~methAndRunningLastTime~0) .cse2))) [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135-2(lines 126 139) the Hoare annotation is: false [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135-3(lines 126 139) the Hoare annotation is: false [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135-4(lines 126 139) the Hoare annotation is: false [2019-10-22 11:25:46,744 INFO L439 ceAbstractionStarter]: At program point L135-5(lines 126 139) the Hoare annotation is: false [2019-10-22 11:25:46,744 INFO L443 ceAbstractionStarter]: For program point L532(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L532-2(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L532-3(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L532-5(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L532-6(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 278) no Hoare annotation was computed. [2019-10-22 11:25:46,745 INFO L443 ceAbstractionStarter]: For program point L532-8(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,747 INFO L443 ceAbstractionStarter]: For program point L532-9(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,747 INFO L439 ceAbstractionStarter]: At program point L202(lines 198 204) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 11:25:46,747 INFO L443 ceAbstractionStarter]: For program point L268-2(lines 268 278) no Hoare annotation was computed. [2019-10-22 11:25:46,747 INFO L443 ceAbstractionStarter]: For program point L532-11(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,747 INFO L443 ceAbstractionStarter]: For program point L532-12(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,747 INFO L443 ceAbstractionStarter]: For program point L268-4(lines 268 278) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L532-14(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L532-15(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L532-17(lines 532 536) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L434(lines 434 442) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L434-1(lines 434 442) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L434-2(lines 434 442) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L269(lines 269 275) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L269-2(lines 269 275) no Hoare annotation was computed. [2019-10-22 11:25:46,748 INFO L443 ceAbstractionStarter]: For program point L269-4(lines 269 275) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L336(lines 336 349) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404-1(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404-2(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404-3(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404-4(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,749 INFO L443 ceAbstractionStarter]: For program point L404-5(lines 404 421) no Hoare annotation was computed. [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L372(lines 371 390) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse0 .cse3)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (and .cse0 .cse2 .cse3) .cse4 .cse5) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse6 (and .cse0 .cse1 .cse3)) (and .cse6 .cse7 .cse4 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse4 .cse5))))) [2019-10-22 11:25:46,750 INFO L443 ceAbstractionStarter]: For program point L372-1(lines 372 378) no Hoare annotation was computed. [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L372-2(lines 371 390) the Hoare annotation is: false [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L372-3(lines 371 390) the Hoare annotation is: false [2019-10-22 11:25:46,750 INFO L446 ceAbstractionStarter]: At program point L240(lines 221 243) the Hoare annotation is: true [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L538(lines 523 541) the Hoare annotation is: false [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L538-1(lines 523 541) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (= 0 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (and (= 0 |ULTIMATE.start_isHighWaterLevel_#res|) .cse0 (= 0 ULTIMATE.start_isHighWaterLevel_~tmp___0~2) .cse1 .cse2)) (and .cse0 .cse3 .cse1 (= 0 ~methAndRunningLastTime~0) .cse2))) [2019-10-22 11:25:46,750 INFO L439 ceAbstractionStarter]: At program point L538-2(lines 523 541) the Hoare annotation is: false [2019-10-22 11:25:46,751 INFO L439 ceAbstractionStarter]: At program point L538-3(lines 523 541) the Hoare annotation is: false [2019-10-22 11:25:46,751 INFO L439 ceAbstractionStarter]: At program point L538-4(lines 523 541) the Hoare annotation is: false [2019-10-22 11:25:46,752 INFO L439 ceAbstractionStarter]: At program point L538-5(lines 523 541) the Hoare annotation is: false [2019-10-22 11:25:46,752 INFO L443 ceAbstractionStarter]: For program point L307(lines 306 353) no Hoare annotation was computed. [2019-10-22 11:25:46,752 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2019-10-22 11:25:46,752 INFO L443 ceAbstractionStarter]: For program point L77(lines 77 81) no Hoare annotation was computed. [2019-10-22 11:25:46,752 INFO L439 ceAbstractionStarter]: At program point L474(lines 467 477) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|) (<= 1 |ULTIMATE.start_isMethaneAlarm_#res|) (and .cse1 .cse2)) (and .cse1 .cse0 (= 0 ~methaneLevelCritical~0) (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse2))) [2019-10-22 11:25:46,752 INFO L439 ceAbstractionStarter]: At program point L474-1(lines 467 477) the Hoare annotation is: false [2019-10-22 11:25:46,752 INFO L443 ceAbstractionStarter]: For program point L408(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,752 INFO L439 ceAbstractionStarter]: At program point L474-2(lines 467 477) the Hoare annotation is: false [2019-10-22 11:25:46,752 INFO L443 ceAbstractionStarter]: For program point L408-1(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,753 INFO L443 ceAbstractionStarter]: For program point L342(lines 342 348) no Hoare annotation was computed. [2019-10-22 11:25:46,753 INFO L443 ceAbstractionStarter]: For program point L408-2(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,753 INFO L439 ceAbstractionStarter]: At program point L342-1(lines 372 378) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse0 .cse3)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1 .cse2 .cse3) .cse4) (and .cse5 (and .cse0 .cse2 .cse3) .cse4) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse6 (and .cse0 .cse1 .cse3)) (and .cse6 .cse7 .cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse5 .cse4))))) [2019-10-22 11:25:46,753 INFO L443 ceAbstractionStarter]: For program point L408-3(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,753 INFO L443 ceAbstractionStarter]: For program point L408-4(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,753 INFO L443 ceAbstractionStarter]: For program point L408-5(lines 408 416) no Hoare annotation was computed. [2019-10-22 11:25:46,754 INFO L439 ceAbstractionStarter]: At program point L379(lines 379 385) the Hoare annotation is: (let ((.cse2 (= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 .cse2 .cse3)) (and .cse1 .cse2 .cse4 .cse3) (and .cse0 (and (and .cse1 .cse3) .cse5 (= 0 ~methAndRunningLastTime~0))) (and (and .cse4 .cse3) (= 0 ~systemActive~0)) (and .cse5 (and .cse1 .cse4 .cse3)))) [2019-10-22 11:25:46,754 INFO L439 ceAbstractionStarter]: At program point L379-1(lines 379 385) the Hoare annotation is: false [2019-10-22 11:25:46,754 INFO L439 ceAbstractionStarter]: At program point L379-2(lines 379 385) the Hoare annotation is: false [2019-10-22 11:25:46,754 INFO L443 ceAbstractionStarter]: For program point L546(lines 546 552) no Hoare annotation was computed. [2019-10-22 11:25:46,754 INFO L439 ceAbstractionStarter]: At program point L546-1(lines 546 552) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 0 ULTIMATE.start_test_~splverifierCounter~0)) [2019-10-22 11:25:46,754 INFO L439 ceAbstractionStarter]: At program point L580(lines 1 957) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 11:25:46,754 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 322) no Hoare annotation was computed. [2019-10-22 11:25:46,755 INFO L439 ceAbstractionStarter]: At program point L316-1(lines 316 322) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse4 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse6 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 (and .cse1 .cse2 (and .cse3 .cse4))) (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) .cse3 .cse0 .cse5 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse4 .cse6) (and (and .cse3 .cse7 .cse4) .cse1 .cse2 .cse6) (and (and .cse7 .cse4) .cse6 (= 0 ~systemActive~0)) (and (and .cse3 .cse5 .cse7 .cse4) .cse6))) [2019-10-22 11:25:46,755 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:46,755 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 57) no Hoare annotation was computed. [2019-10-22 11:25:46,755 INFO L443 ceAbstractionStarter]: For program point L53-3(lines 53 57) no Hoare annotation was computed. [2019-10-22 11:25:46,755 INFO L443 ceAbstractionStarter]: For program point L53-6(lines 53 57) no Hoare annotation was computed. [2019-10-22 11:25:46,755 INFO L439 ceAbstractionStarter]: At program point L483(lines 478 486) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (<= 1 ~methaneLevelCritical~0)) (.cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and (and .cse3 .cse0 .cse1 .cse2) .cse4 .cse5) (and .cse3 (<= 1 ~pumpRunning~0) .cse4 .cse5 .cse2 (= 0 ~methAndRunningLastTime~0)))) [2019-10-22 11:25:46,755 INFO L439 ceAbstractionStarter]: At program point L483-1(lines 478 486) the Hoare annotation is: false [2019-10-22 11:25:46,755 INFO L439 ceAbstractionStarter]: At program point L483-2(lines 478 486) the Hoare annotation is: false [2019-10-22 11:25:46,755 INFO L439 ceAbstractionStarter]: At program point L153-2(lines 153 167) the Hoare annotation is: false [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L253(lines 248 255) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 11:25:46,756 INFO L443 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L354(lines 305 355) the Hoare annotation is: false [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L90(lines 85 93) the Hoare annotation is: (let ((.cse1 (<= 1 ~pumpRunning~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 .cse1 (= 0 ~methaneLevelCritical~0) (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse2) (and .cse1 (<= 1 ~methaneLevelCritical~0) (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|) (and .cse0 .cse2)))) [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L90-1(lines 85 93) the Hoare annotation is: (let ((.cse6 (= 0 ~methaneLevelCritical~0)) (.cse7 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (or (and .cse0 (and .cse1 .cse2 .cse3) .cse4) (and .cse1 .cse5 .cse6 .cse7 .cse3) (and .cse1 .cse6 .cse7 .cse2 .cse3) (and (and .cse2 .cse3) (= 0 ~systemActive~0)) (and .cse1 .cse5 .cse0 .cse4 .cse3 (= 0 ~methAndRunningLastTime~0)))) [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L90-2(lines 85 93) the Hoare annotation is: false [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L90-3(lines 85 93) the Hoare annotation is: false [2019-10-22 11:25:46,756 INFO L439 ceAbstractionStarter]: At program point L90-4(lines 85 93) the Hoare annotation is: false [2019-10-22 11:25:46,757 INFO L439 ceAbstractionStarter]: At program point L90-5(lines 85 93) the Hoare annotation is: false [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L157(lines 157 161) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L157-1(lines 372 378) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L290(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L290-1(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L290-2(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L439 ceAbstractionStarter]: At program point L588(lines 583 591) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:46,757 INFO L443 ceAbstractionStarter]: For program point L326(lines 326 332) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L439 ceAbstractionStarter]: At program point L326-1(lines 326 332) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse1 (= 0 ULTIMATE.start_test_~splverifierCounter~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse7 (and .cse3 .cse1)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse2 (= 0 ~methAndRunningLastTime~0))) (or (and (and .cse0 .cse1) .cse2 (= 0 ~systemActive~0)) (and (and .cse3 .cse4 .cse0 .cse1) .cse2) (and .cse5 (and .cse3 .cse0 .cse1) .cse2) (and .cse6 (and .cse3 .cse4 .cse1)) (and .cse6 .cse7 .cse5 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (and .cse6 (and .cse7 .cse5 .cse2))))) [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130-1(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130-2(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130-3(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130-4(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L130-5(lines 130 136) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,758 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 69) no Hoare annotation was computed. [2019-10-22 11:25:46,759 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:25:46,759 INFO L443 ceAbstractionStarter]: For program point L264(lines 264 281) no Hoare annotation was computed. [2019-10-22 11:25:46,760 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 238) no Hoare annotation was computed. [2019-10-22 11:25:46,760 INFO L439 ceAbstractionStarter]: At program point L264-1(lines 1 957) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse2 (<= 1 |ULTIMATE.start_isMethaneLevelCritical_#res|)) (.cse3 (= 1 ~systemActive~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse4 (= 0 ULTIMATE.start_test_~splverifierCounter~0)) (.cse6 (= 0 ~methAndRunningLastTime~0))) (or (and .cse0 (and .cse1 .cse2 (and .cse3 .cse4))) (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1 0) .cse3 .cse0 .cse5 (= 0 |ULTIMATE.start_isMethaneLevelCritical_#res|) .cse4 .cse6) (and (and .cse3 .cse7 .cse4) .cse1 .cse2 .cse6) (and (and .cse7 .cse4) .cse6 (= 0 ~systemActive~0)) (and (and .cse3 .cse5 .cse7 .cse4) .cse6))) [2019-10-22 11:25:46,760 INFO L443 ceAbstractionStarter]: For program point L264-2(lines 264 281) no Hoare annotation was computed. [2019-10-22 11:25:46,760 INFO L446 ceAbstractionStarter]: At program point L231-1(lines 231 238) the Hoare annotation is: true [2019-10-22 11:25:46,760 INFO L439 ceAbstractionStarter]: At program point L264-3(lines 1 957) the Hoare annotation is: false [2019-10-22 11:25:46,761 INFO L443 ceAbstractionStarter]: For program point L264-4(lines 264 281) no Hoare annotation was computed. [2019-10-22 11:25:46,761 INFO L439 ceAbstractionStarter]: At program point L264-5(lines 1 957) the Hoare annotation is: false [2019-10-22 11:25:46,761 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 290) no Hoare annotation was computed. [2019-10-22 11:25:46,761 INFO L443 ceAbstractionStarter]: For program point L430(lines 430 447) no Hoare annotation was computed. [2019-10-22 11:25:46,761 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 430 447) no Hoare annotation was computed. [2019-10-22 11:25:46,761 INFO L443 ceAbstractionStarter]: For program point L430-2(lines 430 447) no Hoare annotation was computed. [2019-10-22 11:25:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:46 BoogieIcfgContainer [2019-10-22 11:25:46,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:46,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:46,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:46,788 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:46,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:38" (3/4) ... [2019-10-22 11:25:46,792 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:46,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2019-10-22 11:25:46,810 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:25:46,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:25:46,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:25:46,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:46,813 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:25:46,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,844 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,846 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= \result) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == \result) && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,847 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) [2019-10-22 11:25:46,848 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) [2019-10-22 11:25:46,848 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && ((\result == 1 && 1 == systemActive) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) [2019-10-22 11:25:46,848 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) [2019-10-22 11:25:46,849 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && (((0 == \result && 1 == systemActive) && 0 == tmp___0) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) [2019-10-22 11:25:46,909 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9c813316-6983-4ece-80dc-669cba4079a7/bin/utaipan/witness.graphml [2019-10-22 11:25:46,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:46,910 INFO L168 Benchmark]: Toolchain (without parser) took 9586.97 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.4 MB). Free memory was 944.5 MB in the beginning and 964.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 323.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,910 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:46,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.53 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 11:25:46,911 INFO L168 Benchmark]: Boogie Preprocessor took 53.42 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,912 INFO L168 Benchmark]: RCFGBuilder took 839.14 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: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,912 INFO L168 Benchmark]: TraceAbstraction took 7833.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 90.8 MB). Peak memory consumption was 374.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,912 INFO L168 Benchmark]: Witness Printer took 121.76 ms. Allocated memory is still 1.4 GB. Free memory was 985.3 MB in the beginning and 964.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:46,914 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 660.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.53 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 53.42 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 839.14 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: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7833.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 985.3 MB in the end (delta: 90.8 MB). Peak memory consumption was 374.0 MB. Max. memory is 11.5 GB. * Witness Printer took 121.76 ms. Allocated memory is still 1.4 GB. Free memory was 985.3 MB in the beginning and 964.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 290]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 290]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 290]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && ((\result == 1 && 1 == systemActive) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: pumpRunning == 0 && 0 == splverifierCounter - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || (1 <= methaneLevelCritical && (((0 == \result && 1 == systemActive) && 0 == tmp___0) && pumpRunning == 0) && 0 == splverifierCounter)) || ((((1 == systemActive && 1 <= methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime) && 0 == splverifierCounter) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: ((((\result == 0 && pumpRunning == 0) && 0 == splverifierCounter) && 0 == systemActive) || (((((1 == systemActive && \result == 0) && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 <= methaneLevelCritical && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((((tmp == 0 && 1 == systemActive) && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == methAndRunningLastTime)) || (((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive)) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((1 == systemActive && 0 == methaneLevelCritical) && 1 == waterLevel) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: ((((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: (((((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) || ((((1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter) || (((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && 0 == splverifierCounter) && 0 == methAndRunningLastTime) && 0 == systemActive) || ((((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || ((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 0 == methAndRunningLastTime)) || (1 <= pumpRunning && (1 == systemActive && 0 == methaneLevelCritical) && 0 == splverifierCounter)) || (((1 <= pumpRunning && 1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 1 <= \result)) || (1 <= pumpRunning && ((1 == systemActive && 0 == splverifierCounter) && 1 <= methaneLevelCritical) && 0 == methAndRunningLastTime) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: (((((1 <= methaneLevelCritical && (1 == systemActive && pumpRunning == 0) && 0 == splverifierCounter) && 1 <= \result) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter)) || ((((1 == systemActive && 0 == methaneLevelCritical) && 0 == \result) && pumpRunning == 0) && 0 == splverifierCounter)) || ((pumpRunning == 0 && 0 == splverifierCounter) && 0 == systemActive)) || (((((1 == systemActive && 1 <= pumpRunning) && 1 <= methaneLevelCritical) && 1 <= \result) && 0 == splverifierCounter) && 0 == methAndRunningLastTime) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 <= \result) && 1 <= \result) && 1 == systemActive && 0 == splverifierCounter) || ((((1 == systemActive && 1 <= pumpRunning) && 0 == methaneLevelCritical) && 0 == \result) && 0 == splverifierCounter) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: SAFE, OverallTime: 7.7s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, HoareTripleCheckerStatistics: 1243 SDtfs, 1179 SDslu, 1793 SDs, 0 SdLazy, 230 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 240 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1377 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 154 NumberOfFragments, 939 HoareAnnotationTreeSize, 45 FomulaSimplifications, 137878 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 45 FomulaSimplificationsInter, 28678 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 654 ConstructedInterpolants, 0 QuantifiedInterpolants, 58822 SizeOfPredicates, 7 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 120/139 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 correct! Received shutdown request...