./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-03 02:49:32,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 02:49:32,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 02:49:32,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 02:49:32,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 02:49:32,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 02:49:32,877 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 02:49:32,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 02:49:32,878 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 02:49:32,879 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 02:49:32,879 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 02:49:32,879 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 02:49:32,880 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 02:49:32,880 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 02:49:32,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 02:49:32,881 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 02:49:32,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 02:49:32,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 02:49:32,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 02:49:32,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 02:49:32,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 02:49:32,885 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 02:49:32,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 02:49:32,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 02:49:32,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 02:49:32,886 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 02:49:32,887 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 02:49:32,887 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 02:49:32,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 02:49:32,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 02:49:32,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 02:49:32,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 02:49:32,889 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 02:49:32,889 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 02:49:32,889 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 02:49:32,890 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 02:49:32,890 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 02:49:32,897 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 02:49:32,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 02:49:32,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 02:49:32,897 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 02:49:32,898 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 02:49:32,898 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 02:49:32,899 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 02:49:32,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 02:49:32,899 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:49:32,900 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 02:49:32,900 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 02:49:32,900 INFO L133 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_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2018-12-03 02:49:32,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 02:49:32,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 02:49:32,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 02:49:32,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 02:49:32,932 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 02:49:32,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-03 02:49:32,970 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/data/576d99cb9/3a52c19495ed4f65a733abee853cfb45/FLAG9bb071896 [2018-12-03 02:49:33,420 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 02:49:33,421 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-03 02:49:33,427 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/data/576d99cb9/3a52c19495ed4f65a733abee853cfb45/FLAG9bb071896 [2018-12-03 02:49:33,435 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/data/576d99cb9/3a52c19495ed4f65a733abee853cfb45 [2018-12-03 02:49:33,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 02:49:33,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 02:49:33,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 02:49:33,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 02:49:33,441 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 02:49:33,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396438e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33, skipping insertion in model container [2018-12-03 02:49:33,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 02:49:33,476 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 02:49:33,652 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:49:33,697 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 02:49:33,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:49:33,762 INFO L195 MainTranslator]: Completed translation [2018-12-03 02:49:33,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33 WrapperNode [2018-12-03 02:49:33,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 02:49:33,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 02:49:33,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 02:49:33,763 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 02:49:33,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 02:49:33,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 02:49:33,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 02:49:33,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 02:49:33,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... [2018-12-03 02:49:33,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 02:49:33,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 02:49:33,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 02:49:33,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 02:49:33,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/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 [2018-12-03 02:49:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 02:49:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 02:49:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 02:49:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 02:49:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 02:49:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 02:49:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 02:49:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 02:49:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 02:49:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 02:49:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 02:49:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 02:49:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 02:49:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 02:49:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 02:49:33,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 02:49:34,094 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 02:49:34,094 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 02:49:34,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:49:34 BoogieIcfgContainer [2018-12-03 02:49:34,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 02:49:34,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 02:49:34,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 02:49:34,097 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 02:49:34,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 02:49:33" (1/3) ... [2018-12-03 02:49:34,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e10bb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:49:34, skipping insertion in model container [2018-12-03 02:49:34,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:49:33" (2/3) ... [2018-12-03 02:49:34,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e10bb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:49:34, skipping insertion in model container [2018-12-03 02:49:34,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:49:34" (3/3) ... [2018-12-03 02:49:34,099 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-03 02:49:34,105 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 02:49:34,110 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 02:49:34,119 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 02:49:34,138 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 02:49:34,139 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 02:49:34,139 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 02:49:34,139 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 02:49:34,139 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 02:49:34,139 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 02:49:34,139 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 02:49:34,139 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 02:49:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2018-12-03 02:49:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 02:49:34,155 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:34,156 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:34,157 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:34,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:34,160 INFO L82 PathProgramCache]: Analyzing trace with hash 725583522, now seen corresponding path program 1 times [2018-12-03 02:49:34,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:34,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:34,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,189 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:34,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:49:34,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 02:49:34,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:34,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 02:49:34,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 02:49:34,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 02:49:34,316 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2018-12-03 02:49:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:34,337 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2018-12-03 02:49:34,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 02:49:34,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 02:49:34,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:34,344 INFO L225 Difference]: With dead ends: 248 [2018-12-03 02:49:34,345 INFO L226 Difference]: Without dead ends: 124 [2018-12-03 02:49:34,347 INFO L631 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 [2018-12-03 02:49:34,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-03 02:49:34,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-03 02:49:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-03 02:49:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2018-12-03 02:49:34,376 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 46 [2018-12-03 02:49:34,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:34,376 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2018-12-03 02:49:34,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 02:49:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2018-12-03 02:49:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 02:49:34,378 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:34,378 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:34,378 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:34,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:34,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1204619908, now seen corresponding path program 1 times [2018-12-03 02:49:34,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:34,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:34,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,379 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:34,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:49:34,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:49:34,435 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:34,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:49:34,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:49:34,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:49:34,437 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 3 states. [2018-12-03 02:49:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:34,449 INFO L93 Difference]: Finished difference Result 193 states and 221 transitions. [2018-12-03 02:49:34,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:49:34,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 02:49:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:34,450 INFO L225 Difference]: With dead ends: 193 [2018-12-03 02:49:34,450 INFO L226 Difference]: Without dead ends: 115 [2018-12-03 02:49:34,451 INFO L631 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 [2018-12-03 02:49:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-03 02:49:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-03 02:49:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-03 02:49:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2018-12-03 02:49:34,461 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 47 [2018-12-03 02:49:34,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:34,461 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2018-12-03 02:49:34,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:49:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2018-12-03 02:49:34,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-03 02:49:34,462 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:34,462 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:34,463 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:34,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:34,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1235546249, now seen corresponding path program 1 times [2018-12-03 02:49:34,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:34,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:34,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,464 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:34,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:49:34,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 02:49:34,550 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:34,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 02:49:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 02:49:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 02:49:34,551 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 7 states. [2018-12-03 02:49:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:34,742 INFO L93 Difference]: Finished difference Result 206 states and 239 transitions. [2018-12-03 02:49:34,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 02:49:34,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-03 02:49:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:34,744 INFO L225 Difference]: With dead ends: 206 [2018-12-03 02:49:34,744 INFO L226 Difference]: Without dead ends: 115 [2018-12-03 02:49:34,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 02:49:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-03 02:49:34,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-03 02:49:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-03 02:49:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2018-12-03 02:49:34,755 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 52 [2018-12-03 02:49:34,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:34,755 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2018-12-03 02:49:34,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 02:49:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2018-12-03 02:49:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-03 02:49:34,757 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:34,757 INFO L402 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, 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] [2018-12-03 02:49:34,757 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:34,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:34,757 INFO L82 PathProgramCache]: Analyzing trace with hash 2032861656, now seen corresponding path program 1 times [2018-12-03 02:49:34,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:34,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:34,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:34,759 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:34,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:49:34,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 02:49:34,810 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 02:49:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 02:49:34,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 02:49:34,811 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 5 states. [2018-12-03 02:49:35,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:35,084 INFO L93 Difference]: Finished difference Result 296 states and 351 transitions. [2018-12-03 02:49:35,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 02:49:35,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2018-12-03 02:49:35,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:35,086 INFO L225 Difference]: With dead ends: 296 [2018-12-03 02:49:35,086 INFO L226 Difference]: Without dead ends: 205 [2018-12-03 02:49:35,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-03 02:49:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-12-03 02:49:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 186. [2018-12-03 02:49:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-12-03 02:49:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2018-12-03 02:49:35,106 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 60 [2018-12-03 02:49:35,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:35,107 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2018-12-03 02:49:35,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 02:49:35,107 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2018-12-03 02:49:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-03 02:49:35,108 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:35,108 INFO L402 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, 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, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:35,109 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:35,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:35,109 INFO L82 PathProgramCache]: Analyzing trace with hash -265244856, now seen corresponding path program 1 times [2018-12-03 02:49:35,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:35,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:35,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:35,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:35,110 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:35,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:49:35,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 02:49:35,227 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:35,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 02:49:35,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 02:49:35,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 02:49:35,228 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 10 states. [2018-12-03 02:49:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:35,537 INFO L93 Difference]: Finished difference Result 609 states and 748 transitions. [2018-12-03 02:49:35,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 02:49:35,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2018-12-03 02:49:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:35,541 INFO L225 Difference]: With dead ends: 609 [2018-12-03 02:49:35,541 INFO L226 Difference]: Without dead ends: 447 [2018-12-03 02:49:35,542 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-03 02:49:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-12-03 02:49:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 437. [2018-12-03 02:49:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-03 02:49:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 510 transitions. [2018-12-03 02:49:35,574 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 510 transitions. Word has length 74 [2018-12-03 02:49:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:35,574 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 510 transitions. [2018-12-03 02:49:35,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 02:49:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 510 transitions. [2018-12-03 02:49:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-03 02:49:35,577 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:35,577 INFO L402 BasicCegarLoop]: trace histogram [2, 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, 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, 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] [2018-12-03 02:49:35,577 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:35,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:35,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2039702425, now seen corresponding path program 1 times [2018-12-03 02:49:35,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:35,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:35,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:35,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:35,579 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 02:49:35,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:35,629 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:49:35,630 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-03 02:49:35,631 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [68], [70], [71], [72], [81], [85], [89], [95], [97], [103], [105], [111], [114], [124], [125], [126], [127], [128], [130], [135], [138], [139], [141], [144], [148], [149], [150], [151], [161], [164], [168], [174], [201], [202], [205], [209], [210], [223], [226], [227], [228], [229], [230], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [244], [245], [246], [247], [248], [249], [252], [253], [260], [261], [264], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [275], [280], [281], [282] [2018-12-03 02:49:35,652 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 02:49:35,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 02:49:36,347 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 02:49:36,348 INFO L272 AbstractInterpreter]: Visited 104 different actions 371 times. Merged at 17 different actions 32 times. Never widened. Performed 12026 root evaluator evaluations with a maximum evaluation depth of 3. Performed 12026 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-03 02:49:36,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:36,354 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 02:49:36,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:36,354 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:49:36,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:36,363 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 02:49:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:36,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:49:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 02:49:36,477 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:49:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 02:49:36,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 02:49:36,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-03 02:49:36,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:36,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 02:49:36,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 02:49:36,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 02:49:36,656 INFO L87 Difference]: Start difference. First operand 437 states and 510 transitions. Second operand 6 states. [2018-12-03 02:49:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:36,684 INFO L93 Difference]: Finished difference Result 871 states and 1046 transitions. [2018-12-03 02:49:36,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 02:49:36,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-12-03 02:49:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:36,685 INFO L225 Difference]: With dead ends: 871 [2018-12-03 02:49:36,686 INFO L226 Difference]: Without dead ends: 458 [2018-12-03 02:49:36,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 247 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 02:49:36,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2018-12-03 02:49:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 452. [2018-12-03 02:49:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-12-03 02:49:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 526 transitions. [2018-12-03 02:49:36,703 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 526 transitions. Word has length 126 [2018-12-03 02:49:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:36,703 INFO L480 AbstractCegarLoop]: Abstraction has 452 states and 526 transitions. [2018-12-03 02:49:36,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 02:49:36,703 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 526 transitions. [2018-12-03 02:49:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-03 02:49:36,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:36,705 INFO L402 BasicCegarLoop]: trace histogram [2, 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, 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, 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] [2018-12-03 02:49:36,705 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:36,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:36,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2015025125, now seen corresponding path program 1 times [2018-12-03 02:49:36,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:36,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:36,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:36,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:36,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 02:49:36,759 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:36,759 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:49:36,759 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-12-03 02:49:36,759 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [68], [70], [71], [72], [81], [85], [89], [95], [97], [103], [105], [111], [114], [124], [125], [126], [127], [128], [130], [135], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [201], [202], [205], [209], [210], [223], [226], [227], [228], [229], [230], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [244], [245], [246], [247], [248], [249], [252], [253], [260], [261], [264], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [275], [280], [281], [282] [2018-12-03 02:49:36,762 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 02:49:36,762 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 02:49:36,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 02:49:36,844 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 1815 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1815 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 02:49:36,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:36,845 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 02:49:36,993 INFO L227 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 96.57% of their original sizes. [2018-12-03 02:49:36,993 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 02:49:37,045 INFO L418 sIntCurrentIteration]: We unified 125 AI predicates to 125 [2018-12-03 02:49:37,045 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 02:49:37,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 02:49:37,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-12-03 02:49:37,046 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:37,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-03 02:49:37,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-03 02:49:37,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-12-03 02:49:37,046 INFO L87 Difference]: Start difference. First operand 452 states and 526 transitions. Second operand 14 states. [2018-12-03 02:49:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:38,229 INFO L93 Difference]: Finished difference Result 1014 states and 1189 transitions. [2018-12-03 02:49:38,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 02:49:38,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 126 [2018-12-03 02:49:38,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:38,232 INFO L225 Difference]: With dead ends: 1014 [2018-12-03 02:49:38,232 INFO L226 Difference]: Without dead ends: 586 [2018-12-03 02:49:38,233 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-12-03 02:49:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2018-12-03 02:49:38,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 580. [2018-12-03 02:49:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2018-12-03 02:49:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 670 transitions. [2018-12-03 02:49:38,261 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 670 transitions. Word has length 126 [2018-12-03 02:49:38,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:38,262 INFO L480 AbstractCegarLoop]: Abstraction has 580 states and 670 transitions. [2018-12-03 02:49:38,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-03 02:49:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 670 transitions. [2018-12-03 02:49:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-03 02:49:38,264 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:38,264 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:38,264 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:38,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:38,265 INFO L82 PathProgramCache]: Analyzing trace with hash -952817808, now seen corresponding path program 1 times [2018-12-03 02:49:38,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:38,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:38,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:38,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:38,266 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-03 02:49:38,346 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:38,346 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:49:38,347 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-03 02:49:38,347 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [46], [49], [51], [57], [64], [65], [68], [70], [71], [72], [81], [85], [89], [92], [97], [103], [105], [111], [114], [126], [127], [139], [141], [144], [148], [149], [150], [151], [164], [168], [174], [210], [218], [222], [223], [226], [227], [228], [229], [230], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [246], [247], [250], [251], [254], [255], [260], [261], [268], [269], [272], [273], [274], [275], [280], [281], [282] [2018-12-03 02:49:38,348 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 02:49:38,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 02:49:38,422 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 02:49:38,422 INFO L272 AbstractInterpreter]: Visited 48 different actions 48 times. Never merged. Never widened. Performed 1929 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1929 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 02:49:38,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:38,428 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 02:49:38,529 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 97.26% of their original sizes. [2018-12-03 02:49:38,530 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 02:49:38,574 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-03 02:49:38,574 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 02:49:38,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 02:49:38,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-12-03 02:49:38,574 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:38,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 02:49:38,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 02:49:38,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-12-03 02:49:38,575 INFO L87 Difference]: Start difference. First operand 580 states and 670 transitions. Second operand 10 states. [2018-12-03 02:49:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:39,404 INFO L93 Difference]: Finished difference Result 973 states and 1141 transitions. [2018-12-03 02:49:39,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 02:49:39,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2018-12-03 02:49:39,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:39,406 INFO L225 Difference]: With dead ends: 973 [2018-12-03 02:49:39,406 INFO L226 Difference]: Without dead ends: 664 [2018-12-03 02:49:39,407 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-12-03 02:49:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2018-12-03 02:49:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 660. [2018-12-03 02:49:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2018-12-03 02:49:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 762 transitions. [2018-12-03 02:49:39,425 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 762 transitions. Word has length 128 [2018-12-03 02:49:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:39,425 INFO L480 AbstractCegarLoop]: Abstraction has 660 states and 762 transitions. [2018-12-03 02:49:39,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 02:49:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 762 transitions. [2018-12-03 02:49:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 02:49:39,426 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:39,426 INFO L402 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, 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, 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, 1, 1, 1, 1] [2018-12-03 02:49:39,426 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:39,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -182882218, now seen corresponding path program 1 times [2018-12-03 02:49:39,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:39,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:39,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:39,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:39,427 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 02:49:39,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:39,505 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:49:39,505 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 02:49:39,505 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [69], [70], [71], [72], [81], [85], [89], [92], [95], [97], [103], [105], [111], [114], [124], [125], [126], [127], [128], [130], [135], [138], [139], [141], [146], [148], [149], [150], [151], [161], [164], [168], [174], [201], [202], [205], [209], [210], [218], [222], [223], [226], [227], [228], [229], [230], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [244], [245], [246], [247], [248], [249], [252], [253], [254], [255], [260], [261], [264], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [275], [280], [281], [282] [2018-12-03 02:49:39,507 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 02:49:39,507 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 02:49:40,103 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 02:49:40,103 INFO L272 AbstractInterpreter]: Visited 109 different actions 484 times. Merged at 16 different actions 46 times. Never widened. Performed 15870 root evaluator evaluations with a maximum evaluation depth of 3. Performed 15870 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-03 02:49:40,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:40,106 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 02:49:40,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:40,106 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:49:40,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:40,113 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 02:49:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:40,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:49:40,255 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:40,255 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:49:40,427 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 02:49:40,443 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 02:49:40,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-03 02:49:40,443 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 02:49:40,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-03 02:49:40,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-03 02:49:40,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-03 02:49:40,444 INFO L87 Difference]: Start difference. First operand 660 states and 762 transitions. Second operand 15 states. [2018-12-03 02:49:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:41,123 INFO L93 Difference]: Finished difference Result 1276 states and 1656 transitions. [2018-12-03 02:49:41,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-03 02:49:41,124 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-03 02:49:41,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:41,127 INFO L225 Difference]: With dead ends: 1276 [2018-12-03 02:49:41,127 INFO L226 Difference]: Without dead ends: 967 [2018-12-03 02:49:41,128 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 252 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-03 02:49:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-12-03 02:49:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 798. [2018-12-03 02:49:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2018-12-03 02:49:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 928 transitions. [2018-12-03 02:49:41,181 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 928 transitions. Word has length 130 [2018-12-03 02:49:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:41,181 INFO L480 AbstractCegarLoop]: Abstraction has 798 states and 928 transitions. [2018-12-03 02:49:41,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-03 02:49:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 928 transitions. [2018-12-03 02:49:41,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-03 02:49:41,183 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:41,183 INFO L402 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, 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, 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, 1, 1, 1, 1] [2018-12-03 02:49:41,183 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:41,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:41,183 INFO L82 PathProgramCache]: Analyzing trace with hash -167245225, now seen corresponding path program 1 times [2018-12-03 02:49:41,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:41,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:41,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:41,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:41,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 02:49:41,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:41,242 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:49:41,242 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-03 02:49:41,243 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [68], [70], [71], [72], [81], [85], [89], [95], [97], [100], [103], [105], [111], [114], [124], [125], [126], [127], [128], [130], [135], [138], [139], [141], [146], [148], [149], [150], [151], [156], [158], [161], [164], [168], [174], [201], [202], [205], [209], [210], [223], [226], [227], [228], [229], [230], [232], [233], [234], [235], [236], [237], [238], [239], [240], [242], [244], [245], [246], [247], [248], [249], [252], [253], [256], [257], [260], [261], [264], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [275], [280], [281], [282] [2018-12-03 02:49:41,244 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 02:49:41,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 02:49:41,369 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 02:49:41,369 INFO L272 AbstractInterpreter]: Visited 55 different actions 75 times. Merged at 4 different actions 4 times. Never widened. Performed 4003 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4003 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-03 02:49:41,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:41,372 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 02:49:41,508 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.56% of their original sizes. [2018-12-03 02:49:41,508 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 02:49:41,593 INFO L418 sIntCurrentIteration]: We unified 129 AI predicates to 129 [2018-12-03 02:49:41,593 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 02:49:41,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 02:49:41,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [8] total 23 [2018-12-03 02:49:41,594 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:49:41,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-03 02:49:41,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-03 02:49:41,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-12-03 02:49:41,594 INFO L87 Difference]: Start difference. First operand 798 states and 928 transitions. Second operand 17 states. [2018-12-03 02:49:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:42,897 INFO L93 Difference]: Finished difference Result 1433 states and 1677 transitions. [2018-12-03 02:49:42,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 02:49:42,897 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 130 [2018-12-03 02:49:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:42,899 INFO L225 Difference]: With dead ends: 1433 [2018-12-03 02:49:42,899 INFO L226 Difference]: Without dead ends: 659 [2018-12-03 02:49:42,900 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2018-12-03 02:49:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2018-12-03 02:49:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 657. [2018-12-03 02:49:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2018-12-03 02:49:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 762 transitions. [2018-12-03 02:49:42,919 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 762 transitions. Word has length 130 [2018-12-03 02:49:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:42,919 INFO L480 AbstractCegarLoop]: Abstraction has 657 states and 762 transitions. [2018-12-03 02:49:42,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-03 02:49:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 762 transitions. [2018-12-03 02:49:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-12-03 02:49:42,921 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:42,921 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:42,921 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:42,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:42,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1603109824, now seen corresponding path program 2 times [2018-12-03 02:49:42,921 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:49:42,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:42,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:42,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:49:42,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:49:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 02:49:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 02:49:43,012 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 02:49:43,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 02:49:43 BoogieIcfgContainer [2018-12-03 02:49:43,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 02:49:43,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 02:49:43,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 02:49:43,109 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 02:49:43,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:49:34" (3/4) ... [2018-12-03 02:49:43,111 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 02:49:43,203 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5fccbdb5-e2aa-4a97-89b0-8506220014be/bin-2019/utaipan/witness.graphml [2018-12-03 02:49:43,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 02:49:43,204 INFO L168 Benchmark]: Toolchain (without parser) took 9766.43 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 449.8 MB). Free memory was 953.5 MB in the beginning and 951.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 451.6 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,204 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:49:43,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.10 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. [2018-12-03 02:49:43,205 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,205 INFO L168 Benchmark]: RCFGBuilder took 292.28 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,205 INFO L168 Benchmark]: TraceAbstraction took 9013.59 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 361.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.9 MB). Peak memory consumption was 376.1 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,205 INFO L168 Benchmark]: Witness Printer took 94.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 951.7 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2018-12-03 02:49:43,206 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -124.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.10 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. * Boogie Preprocessor took 20.27 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 292.28 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9013.59 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 361.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.9 MB). Peak memory consumption was 376.1 MB. Max. memory is 11.5 GB. * Witness Printer took 94.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 951.7 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L649] int retValue_acc ; [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L654] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, 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 [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L656] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L660] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L661] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L695] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L899] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L783] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L787] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L812] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L841] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L816] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L822] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L806] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L822] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L787] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L557] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L561] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 137 locations, 1 error locations. UNSAFE Result, 8.9s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1509 SDtfs, 1934 SDslu, 4581 SDs, 0 SdLazy, 2435 SolverSat, 900 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 990 GetRequests, 868 SyntacticMatches, 12 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9979441543433714 AbsIntWeakeningRatio, 0.9448818897637795 AbsIntAvgWeakeningVarsNumRemoved, 49.6745406824147 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 216 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1341 NumberOfCodeBlocks, 1341 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1417 ConstructedInterpolants, 0 QuantifiedInterpolants, 247729 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1630 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 218/246 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...