./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2bf5cdbd1397f8c2609b4d66a963cb35955afadc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:17,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:17,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:17,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:17,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:17,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:17,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:17,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:17,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:17,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:17,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:17,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:17,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:17,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:17,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:17,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:17,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:17,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:17,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:17,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:17,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:17,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:17,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:17,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:17,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:17,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:17,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:17,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:17,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:17,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:17,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:17,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:17,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:17,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:17,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:17,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:17,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:17,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:17,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:17,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:17,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:17,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:17,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:17,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:17,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:17,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:17,487 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:17,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:17,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:17,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:17,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:17,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:17,489 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:17,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:17,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:17,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:17,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:17,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:17,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:17,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:17,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer 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 -> Automizer 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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2019-10-22 08:57:17,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:17,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:17,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:17,537 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:17,537 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:17,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-10-22 08:57:17,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/data/8247f50f0/dde3cae4201448feb27aca8ad628c9c0/FLAGf57149a7e [2019-10-22 08:57:18,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:18,025 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-10-22 08:57:18,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/data/8247f50f0/dde3cae4201448feb27aca8ad628c9c0/FLAGf57149a7e [2019-10-22 08:57:18,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/data/8247f50f0/dde3cae4201448feb27aca8ad628c9c0 [2019-10-22 08:57:18,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:18,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:18,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:18,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:18,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:18,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576275af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18, skipping insertion in model container [2019-10-22 08:57:18,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,400 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:18,444 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:18,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:18,791 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:18,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:18,900 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:18,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18 WrapperNode [2019-10-22 08:57:18,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:18,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:18,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:18,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:18,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:18,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:18,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:18,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:19,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:19,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:19,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:19,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:19,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:19,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/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 08:57:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:57:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:19,873 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:19,873 INFO L284 CfgBuilder]: Removed 96 assume(true) statements. [2019-10-22 08:57:19,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:19 BoogieIcfgContainer [2019-10-22 08:57:19,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:19,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:19,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:19,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:19,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:18" (1/3) ... [2019-10-22 08:57:19,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fdda61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:19, skipping insertion in model container [2019-10-22 08:57:19,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (2/3) ... [2019-10-22 08:57:19,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fdda61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:19, skipping insertion in model container [2019-10-22 08:57:19,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:19" (3/3) ... [2019-10-22 08:57:19,885 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2019-10-22 08:57:19,893 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:19,900 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:57:19,914 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:57:19,938 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:19,939 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:19,939 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:19,945 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:19,945 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:19,945 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:19,945 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:19,945 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-10-22 08:57:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:57:19,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:19,974 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:19,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,985 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2019-10-22 08:57:19,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843938657] [2019-10-22 08:57:19,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,197 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 08:57:20,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843938657] [2019-10-22 08:57:20,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:20,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546044939] [2019-10-22 08:57:20,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:20,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:20,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:20,214 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-10-22 08:57:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,236 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-10-22 08:57:20,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:20,238 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-22 08:57:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,248 INFO L225 Difference]: With dead ends: 150 [2019-10-22 08:57:20,248 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 08:57:20,251 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 08:57:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 08:57:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-10-22 08:57:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 08:57:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-10-22 08:57:20,286 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-10-22 08:57:20,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,287 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-10-22 08:57:20,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-10-22 08:57:20,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:57:20,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,288 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:20,288 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2019-10-22 08:57:20,289 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:20,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816021387] [2019-10-22 08:57:20,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,391 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 08:57:20,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816021387] [2019-10-22 08:57:20,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:20,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985583518] [2019-10-22 08:57:20,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:20,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:20,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:20,394 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2019-10-22 08:57:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,404 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-10-22 08:57:20,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:20,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-22 08:57:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,406 INFO L225 Difference]: With dead ends: 74 [2019-10-22 08:57:20,406 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 08:57:20,407 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 08:57:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 08:57:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-22 08:57:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-22 08:57:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-10-22 08:57:20,411 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-10-22 08:57:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,411 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-10-22 08:57:20,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-10-22 08:57:20,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:20,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,412 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] [2019-10-22 08:57:20,413 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,413 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2019-10-22 08:57:20,413 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:20,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387596441] [2019-10-22 08:57:20,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,414 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,484 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 08:57:20,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387596441] [2019-10-22 08:57:20,485 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:20,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058684699] [2019-10-22 08:57:20,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:20,485 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:20,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:20,486 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 3 states. [2019-10-22 08:57:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,492 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-10-22 08:57:20,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:20,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 08:57:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,493 INFO L225 Difference]: With dead ends: 62 [2019-10-22 08:57:20,493 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 08:57:20,494 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 08:57:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 08:57:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-22 08:57:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-22 08:57:20,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-10-22 08:57:20,498 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-10-22 08:57:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,498 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-10-22 08:57:20,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-10-22 08:57:20,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:57:20,499 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,499 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] [2019-10-22 08:57:20,500 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2019-10-22 08:57:20,500 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:20,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311629353] [2019-10-22 08:57:20,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,577 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 08:57:20,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311629353] [2019-10-22 08:57:20,578 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:20,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918588230] [2019-10-22 08:57:20,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:20,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:20,579 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-10-22 08:57:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,627 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-10-22 08:57:20,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:20,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 08:57:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,629 INFO L225 Difference]: With dead ends: 83 [2019-10-22 08:57:20,629 INFO L226 Difference]: Without dead ends: 55 [2019-10-22 08:57:20,629 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 08:57:20,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-22 08:57:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-10-22 08:57:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 08:57:20,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-10-22 08:57:20,639 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-10-22 08:57:20,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,639 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-10-22 08:57:20,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:20,640 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-10-22 08:57:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:57:20,640 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,640 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] [2019-10-22 08:57:20,641 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2019-10-22 08:57:20,641 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:20,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230483309] [2019-10-22 08:57:20,641 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,641 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,722 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 08:57:20,722 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230483309] [2019-10-22 08:57:20,722 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:20,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100925732] [2019-10-22 08:57:20,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:20,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:20,724 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-10-22 08:57:20,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,804 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-10-22 08:57:20,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:20,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 08:57:20,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,806 INFO L225 Difference]: With dead ends: 139 [2019-10-22 08:57:20,806 INFO L226 Difference]: Without dead ends: 92 [2019-10-22 08:57:20,806 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 08:57:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-22 08:57:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-10-22 08:57:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-22 08:57:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-10-22 08:57:20,819 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-10-22 08:57:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,819 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-10-22 08:57:20,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-10-22 08:57:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:57:20,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,820 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] [2019-10-22 08:57:20,821 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,821 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2019-10-22 08:57:20,821 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:20,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843480412] [2019-10-22 08:57:20,821 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:20,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,891 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 08:57:20,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843480412] [2019-10-22 08:57:20,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:20,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917930322] [2019-10-22 08:57:20,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:20,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:20,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:20,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:20,893 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2019-10-22 08:57:21,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,021 INFO L93 Difference]: Finished difference Result 203 states and 287 transitions. [2019-10-22 08:57:21,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:21,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 08:57:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,023 INFO L225 Difference]: With dead ends: 203 [2019-10-22 08:57:21,023 INFO L226 Difference]: Without dead ends: 153 [2019-10-22 08:57:21,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-22 08:57:21,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2019-10-22 08:57:21,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-10-22 08:57:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 132 transitions. [2019-10-22 08:57:21,051 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 132 transitions. Word has length 29 [2019-10-22 08:57:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,052 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 132 transitions. [2019-10-22 08:57:21,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 132 transitions. [2019-10-22 08:57:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:57:21,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,053 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] [2019-10-22 08:57:21,053 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,053 INFO L82 PathProgramCache]: Analyzing trace with hash -949743997, now seen corresponding path program 1 times [2019-10-22 08:57:21,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:21,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897359554] [2019-10-22 08:57:21,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,122 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 08:57:21,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897359554] [2019-10-22 08:57:21,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:21,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:21,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4353238] [2019-10-22 08:57:21,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:21,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:21,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:21,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:21,125 INFO L87 Difference]: Start difference. First operand 98 states and 132 transitions. Second operand 5 states. [2019-10-22 08:57:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,238 INFO L93 Difference]: Finished difference Result 197 states and 271 transitions. [2019-10-22 08:57:21,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:57:21,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:57:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,240 INFO L225 Difference]: With dead ends: 197 [2019-10-22 08:57:21,240 INFO L226 Difference]: Without dead ends: 195 [2019-10-22 08:57:21,240 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 08:57:21,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-22 08:57:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 98. [2019-10-22 08:57:21,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-10-22 08:57:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2019-10-22 08:57:21,264 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 30 [2019-10-22 08:57:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,264 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2019-10-22 08:57:21,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2019-10-22 08:57:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:57:21,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,266 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] [2019-10-22 08:57:21,266 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,266 INFO L82 PathProgramCache]: Analyzing trace with hash 289685246, now seen corresponding path program 1 times [2019-10-22 08:57:21,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:21,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103035339] [2019-10-22 08:57:21,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,322 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 08:57:21,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103035339] [2019-10-22 08:57:21,323 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:21,323 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:21,323 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203033461] [2019-10-22 08:57:21,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:21,324 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:21,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:21,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:21,324 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand 5 states. [2019-10-22 08:57:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,378 INFO L93 Difference]: Finished difference Result 228 states and 307 transitions. [2019-10-22 08:57:21,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:21,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:57:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,380 INFO L225 Difference]: With dead ends: 228 [2019-10-22 08:57:21,380 INFO L226 Difference]: Without dead ends: 136 [2019-10-22 08:57:21,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-22 08:57:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 81. [2019-10-22 08:57:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-22 08:57:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2019-10-22 08:57:21,390 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 30 [2019-10-22 08:57:21,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,390 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2019-10-22 08:57:21,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2019-10-22 08:57:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:57:21,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,392 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] [2019-10-22 08:57:21,392 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash 547850684, now seen corresponding path program 1 times [2019-10-22 08:57:21,392 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:21,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667214507] [2019-10-22 08:57:21,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,436 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 08:57:21,437 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667214507] [2019-10-22 08:57:21,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:21,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:21,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734794321] [2019-10-22 08:57:21,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:21,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:21,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:21,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:21,439 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand 5 states. [2019-10-22 08:57:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,542 INFO L93 Difference]: Finished difference Result 208 states and 285 transitions. [2019-10-22 08:57:21,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:21,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:57:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,544 INFO L225 Difference]: With dead ends: 208 [2019-10-22 08:57:21,544 INFO L226 Difference]: Without dead ends: 156 [2019-10-22 08:57:21,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-10-22 08:57:21,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 118. [2019-10-22 08:57:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-22 08:57:21,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2019-10-22 08:57:21,562 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 30 [2019-10-22 08:57:21,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,562 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2019-10-22 08:57:21,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2019-10-22 08:57:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:57:21,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,563 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] [2019-10-22 08:57:21,563 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1693810360, now seen corresponding path program 1 times [2019-10-22 08:57:21,564 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:21,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693986842] [2019-10-22 08:57:21,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:21,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693986842] [2019-10-22 08:57:21,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566209910] [2019-10-22 08:57:21,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/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 08:57:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:57:21,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,783 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:57:21,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-10-22 08:57:21,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48585633] [2019-10-22 08:57:21,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:21,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:21,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:21,785 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand 6 states. [2019-10-22 08:57:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,945 INFO L93 Difference]: Finished difference Result 345 states and 466 transitions. [2019-10-22 08:57:21,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:57:21,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2019-10-22 08:57:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,947 INFO L225 Difference]: With dead ends: 345 [2019-10-22 08:57:21,947 INFO L226 Difference]: Without dead ends: 256 [2019-10-22 08:57:21,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-22 08:57:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 159. [2019-10-22 08:57:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 08:57:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2019-10-22 08:57:21,971 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 45 [2019-10-22 08:57:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,971 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2019-10-22 08:57:21,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2019-10-22 08:57:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-22 08:57:21,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,977 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 08:57:22,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:22,178 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:22,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1880584764, now seen corresponding path program 2 times [2019-10-22 08:57:22,179 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:22,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111906244] [2019-10-22 08:57:22,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:22,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:22,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:23,135 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:23,136 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:23,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:23 BoogieIcfgContainer [2019-10-22 08:57:23,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:23,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:23,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:23,249 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:23,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:19" (3/4) ... [2019-10-22 08:57:23,252 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:57:23,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c75f1d2e-dbb8-4d47-a6bb-4fa1b2d4818f/bin/uautomizer/witness.graphml [2019-10-22 08:57:23,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:23,382 INFO L168 Benchmark]: Toolchain (without parser) took 4993.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 939.2 MB in the beginning and 915.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,382 INFO L168 Benchmark]: CDTParser took 0.88 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 08:57:23,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,383 INFO L168 Benchmark]: Boogie Preprocessor took 67.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:23,383 INFO L168 Benchmark]: RCFGBuilder took 816.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,383 INFO L168 Benchmark]: TraceAbstraction took 3373.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.0 GB in the beginning and 942.9 MB in the end (delta: 83.2 MB). Peak memory consumption was 170.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,383 INFO L168 Benchmark]: Witness Printer took 131.08 ms. Allocated memory is still 1.2 GB. Free memory was 942.9 MB in the beginning and 915.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:23,385 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 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 512.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 816.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3373.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.0 GB in the beginning and 942.9 MB in the end (delta: 83.2 MB). Peak memory consumption was 170.2 MB. Max. memory is 11.5 GB. * Witness Printer took 131.08 ms. Allocated memory is still 1.2 GB. Free memory was 942.9 MB in the beginning and 915.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L695] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L777] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) [L749] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 714 SDtfs, 902 SDslu, 1054 SDs, 0 SdLazy, 184 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 380 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 305 ConstructedInterpolants, 0 QuantifiedInterpolants, 19573 SizeOfPredicates, 4 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 22/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...