./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/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 ac98b61700c421642ba0cea32b1043bdcac0ece8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:13:38,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:13:38,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:13:38,877 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:13:38,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:13:38,878 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:13:38,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:13:38,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:13:38,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:13:38,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:13:38,882 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:13:38,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:13:38,883 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:13:38,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:13:38,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:13:38,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:13:38,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:13:38,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:13:38,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:13:38,889 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:13:38,890 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:13:38,891 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:13:38,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:13:38,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:13:38,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:13:38,893 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:13:38,894 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:13:38,895 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:13:38,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:13:38,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:13:38,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:13:38,897 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:13:38,897 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:13:38,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:13:38,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:13:38,898 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:13:38,898 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:13:38,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:13:38,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:13:38,907 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:13:38,907 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:13:38,907 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:13:38,907 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:13:38,907 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:13:38,908 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:13:38,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:13:38,909 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:13:38,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:13:38,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:13:38,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:13:38,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:13:38,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:13:38,911 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:13:38,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:13:38,911 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:13:38,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:13:38,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:13:38,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:13:38,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:13:38,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:13:38,912 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:13:38,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:13:38,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:13:38,912 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:13:38,912 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_9d71e457-744d-4e78-a68c-025a09568aaa/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 -> ac98b61700c421642ba0cea32b1043bdcac0ece8 [2018-11-18 14:13:38,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:13:38,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:13:38,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:13:38,952 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:13:38,952 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:13:38,952 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-11-18 14:13:38,986 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/data/77cd1151f/ff3ecdc7cf2f432a9b4e9aad44846ffc/FLAGe2124702e [2018-11-18 14:13:39,337 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:13:39,337 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-11-18 14:13:39,347 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/data/77cd1151f/ff3ecdc7cf2f432a9b4e9aad44846ffc/FLAGe2124702e [2018-11-18 14:13:39,358 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/data/77cd1151f/ff3ecdc7cf2f432a9b4e9aad44846ffc [2018-11-18 14:13:39,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:13:39,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:13:39,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:13:39,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:13:39,365 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:13:39,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39, skipping insertion in model container [2018-11-18 14:13:39,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:13:39,408 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:13:39,612 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:13:39,621 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:13:39,724 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:13:39,745 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:13:39,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39 WrapperNode [2018-11-18 14:13:39,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:13:39,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:13:39,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:13:39,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:13:39,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:13:39,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:13:39,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:13:39,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:13:39,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... [2018-11-18 14:13:39,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:13:39,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:13:39,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:13:39,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:13:39,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/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 [2018-11-18 14:13:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 14:13:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 14:13:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 14:13:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 14:13:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:13:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:13:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-18 14:13:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-18 14:13:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 14:13:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 14:13:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:13:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 14:13:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 14:13:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 14:13:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 14:13:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 14:13:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 14:13:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 14:13:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 14:13:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 14:13:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 14:13:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 14:13:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 14:13:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 14:13:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 14:13:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 14:13:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 14:13:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 14:13:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 14:13:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 14:13:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 14:13:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 14:13:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 14:13:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 14:13:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 14:13:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 14:13:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 14:13:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:13:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:13:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 14:13:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 14:13:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 14:13:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 14:13:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 14:13:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 14:13:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 14:13:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 14:13:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 14:13:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 14:13:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 14:13:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 14:13:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:13:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:13:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 14:13:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 14:13:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 14:13:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 14:13:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:13:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:13:40,317 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:13:40,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:40 BoogieIcfgContainer [2018-11-18 14:13:40,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:13:40,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:13:40,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:13:40,323 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:13:40,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:13:39" (1/3) ... [2018-11-18 14:13:40,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23864618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:13:40, skipping insertion in model container [2018-11-18 14:13:40,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:13:39" (2/3) ... [2018-11-18 14:13:40,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23864618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:13:40, skipping insertion in model container [2018-11-18 14:13:40,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:40" (3/3) ... [2018-11-18 14:13:40,326 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-11-18 14:13:40,334 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:13:40,341 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:13:40,349 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:13:40,377 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:13:40,377 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:13:40,377 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:13:40,377 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:13:40,377 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:13:40,377 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:13:40,377 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:13:40,377 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:13:40,390 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2018-11-18 14:13:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 14:13:40,396 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:40,397 INFO L375 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] [2018-11-18 14:13:40,399 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:40,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:40,404 INFO L82 PathProgramCache]: Analyzing trace with hash -480164425, now seen corresponding path program 1 times [2018-11-18 14:13:40,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:40,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:40,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,438 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:40,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:40,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:13:40,610 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:40,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:13:40,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:13:40,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:13:40,623 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2018-11-18 14:13:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:40,653 INFO L93 Difference]: Finished difference Result 280 states and 345 transitions. [2018-11-18 14:13:40,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:13:40,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 14:13:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:40,662 INFO L225 Difference]: With dead ends: 280 [2018-11-18 14:13:40,663 INFO L226 Difference]: Without dead ends: 140 [2018-11-18 14:13:40,666 INFO L604 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 [2018-11-18 14:13:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-18 14:13:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-11-18 14:13:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-18 14:13:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2018-11-18 14:13:40,704 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 46 [2018-11-18 14:13:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:40,705 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2018-11-18 14:13:40,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:13:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2018-11-18 14:13:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 14:13:40,707 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:40,708 INFO L375 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] [2018-11-18 14:13:40,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:40,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:40,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1455926625, now seen corresponding path program 1 times [2018-11-18 14:13:40,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:40,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:40,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,709 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:40,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:40,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:13:40,817 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:40,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:13:40,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:13:40,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:40,819 INFO L87 Difference]: Start difference. First operand 140 states and 164 transitions. Second operand 3 states. [2018-11-18 14:13:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:40,837 INFO L93 Difference]: Finished difference Result 217 states and 253 transitions. [2018-11-18 14:13:40,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:13:40,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 14:13:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:40,839 INFO L225 Difference]: With dead ends: 217 [2018-11-18 14:13:40,839 INFO L226 Difference]: Without dead ends: 130 [2018-11-18 14:13:40,841 INFO L604 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 [2018-11-18 14:13:40,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-18 14:13:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-11-18 14:13:40,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-18 14:13:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2018-11-18 14:13:40,851 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 48 [2018-11-18 14:13:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:40,851 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2018-11-18 14:13:40,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:13:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2018-11-18 14:13:40,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 14:13:40,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:40,853 INFO L375 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] [2018-11-18 14:13:40,853 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:40,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:40,853 INFO L82 PathProgramCache]: Analyzing trace with hash -244178750, now seen corresponding path program 1 times [2018-11-18 14:13:40,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:40,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:40,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:40,855 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:40,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:40,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:13:40,961 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:40,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:13:40,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:13:40,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:13:40,962 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 7 states. [2018-11-18 14:13:41,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:41,327 INFO L93 Difference]: Finished difference Result 393 states and 474 transitions. [2018-11-18 14:13:41,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:13:41,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 14:13:41,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:41,329 INFO L225 Difference]: With dead ends: 393 [2018-11-18 14:13:41,330 INFO L226 Difference]: Without dead ends: 287 [2018-11-18 14:13:41,331 INFO L604 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 [2018-11-18 14:13:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-11-18 14:13:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 275. [2018-11-18 14:13:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 14:13:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 331 transitions. [2018-11-18 14:13:41,358 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 331 transitions. Word has length 53 [2018-11-18 14:13:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:41,358 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 331 transitions. [2018-11-18 14:13:41,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:13:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 331 transitions. [2018-11-18 14:13:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 14:13:41,360 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:41,360 INFO L375 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] [2018-11-18 14:13:41,360 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:41,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:41,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1125554539, now seen corresponding path program 1 times [2018-11-18 14:13:41,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:41,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:41,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:41,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:41,362 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:41,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:41,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:13:41,474 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:41,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:13:41,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:13:41,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:13:41,475 INFO L87 Difference]: Start difference. First operand 275 states and 331 transitions. Second operand 10 states. [2018-11-18 14:13:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:41,905 INFO L93 Difference]: Finished difference Result 980 states and 1272 transitions. [2018-11-18 14:13:41,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:13:41,906 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2018-11-18 14:13:41,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:41,910 INFO L225 Difference]: With dead ends: 980 [2018-11-18 14:13:41,910 INFO L226 Difference]: Without dead ends: 729 [2018-11-18 14:13:41,912 INFO L604 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 [2018-11-18 14:13:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2018-11-18 14:13:41,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 717. [2018-11-18 14:13:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2018-11-18 14:13:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 897 transitions. [2018-11-18 14:13:41,954 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 897 transitions. Word has length 58 [2018-11-18 14:13:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:41,954 INFO L480 AbstractCegarLoop]: Abstraction has 717 states and 897 transitions. [2018-11-18 14:13:41,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:13:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 897 transitions. [2018-11-18 14:13:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 14:13:41,956 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:41,956 INFO L375 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] [2018-11-18 14:13:41,957 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:41,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:41,957 INFO L82 PathProgramCache]: Analyzing trace with hash -51243365, now seen corresponding path program 1 times [2018-11-18 14:13:41,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:41,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:41,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:41,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:41,958 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:42,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:42,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:13:42,006 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:42,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:13:42,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:13:42,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:42,007 INFO L87 Difference]: Start difference. First operand 717 states and 897 transitions. Second operand 3 states. [2018-11-18 14:13:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:42,075 INFO L93 Difference]: Finished difference Result 1635 states and 2149 transitions. [2018-11-18 14:13:42,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:13:42,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-11-18 14:13:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:42,080 INFO L225 Difference]: With dead ends: 1635 [2018-11-18 14:13:42,080 INFO L226 Difference]: Without dead ends: 942 [2018-11-18 14:13:42,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:13:42,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2018-11-18 14:13:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 921. [2018-11-18 14:13:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2018-11-18 14:13:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1154 transitions. [2018-11-18 14:13:42,121 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1154 transitions. Word has length 62 [2018-11-18 14:13:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:42,122 INFO L480 AbstractCegarLoop]: Abstraction has 921 states and 1154 transitions. [2018-11-18 14:13:42,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:13:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1154 transitions. [2018-11-18 14:13:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-18 14:13:42,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:42,124 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:42,124 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:42,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1077334938, now seen corresponding path program 1 times [2018-11-18 14:13:42,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:42,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:42,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:42,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:42,125 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 14:13:42,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:42,214 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:42,215 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 92 with the following transitions: [2018-11-18 14:13:42,216 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [90], [94], [100], [104], [108], [111], [116], [122], [124], [130], [133], [136], [146], [147], [161], [162], [202], [209], [212], [220], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [275], [285], [286], [291], [292], [293], [294], [307], [308], [309], [310], [311] [2018-11-18 14:13:42,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:42,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:42,611 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:42,612 INFO L272 AbstractInterpreter]: Visited 68 different actions 80 times. Merged at 7 different actions 7 times. Never widened. Performed 3147 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 133 variables. [2018-11-18 14:13:42,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:42,631 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:42,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:42,631 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/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 [2018-11-18 14:13:42,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:42,659 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:42,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 14:13:42,868 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:13:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:13:43,088 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:13:43,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-18 14:13:43,088 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:13:43,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:13:43,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:13:43,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-18 14:13:43,089 INFO L87 Difference]: Start difference. First operand 921 states and 1154 transitions. Second operand 12 states. [2018-11-18 14:13:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:45,157 INFO L93 Difference]: Finished difference Result 2282 states and 3092 transitions. [2018-11-18 14:13:45,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-18 14:13:45,158 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2018-11-18 14:13:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:45,163 INFO L225 Difference]: With dead ends: 2282 [2018-11-18 14:13:45,163 INFO L226 Difference]: Without dead ends: 1631 [2018-11-18 14:13:45,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 188 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-18 14:13:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2018-11-18 14:13:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1412. [2018-11-18 14:13:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2018-11-18 14:13:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1794 transitions. [2018-11-18 14:13:45,221 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1794 transitions. Word has length 91 [2018-11-18 14:13:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:45,222 INFO L480 AbstractCegarLoop]: Abstraction has 1412 states and 1794 transitions. [2018-11-18 14:13:45,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:13:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1794 transitions. [2018-11-18 14:13:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 14:13:45,225 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:45,226 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:45,226 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:45,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:45,226 INFO L82 PathProgramCache]: Analyzing trace with hash 673058042, now seen corresponding path program 1 times [2018-11-18 14:13:45,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:45,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:45,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:45,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:45,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 14:13:45,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:45,310 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:45,310 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-18 14:13:45,310 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [88], [89], [90], [94], [100], [104], [108], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [155], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [281], [282], [283], [284], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:45,314 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:45,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:45,466 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:13:45,467 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Performed 1872 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1872 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 14:13:45,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:45,468 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:13:45,649 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 97.3% of their original sizes. [2018-11-18 14:13:45,649 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:13:45,715 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-18 14:13:45,715 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:13:45,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:13:45,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-18 14:13:45,716 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 14:13:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 14:13:45,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:13:45,716 INFO L87 Difference]: Start difference. First operand 1412 states and 1794 transitions. Second operand 13 states. [2018-11-18 14:13:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:47,726 INFO L93 Difference]: Finished difference Result 2978 states and 3791 transitions. [2018-11-18 14:13:47,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:13:47,726 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 136 [2018-11-18 14:13:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:47,731 INFO L225 Difference]: With dead ends: 2978 [2018-11-18 14:13:47,732 INFO L226 Difference]: Without dead ends: 1590 [2018-11-18 14:13:47,734 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-18 14:13:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2018-11-18 14:13:47,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1562. [2018-11-18 14:13:47,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1562 states. [2018-11-18 14:13:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1967 transitions. [2018-11-18 14:13:47,825 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1967 transitions. Word has length 136 [2018-11-18 14:13:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:47,825 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 1967 transitions. [2018-11-18 14:13:47,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 14:13:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1967 transitions. [2018-11-18 14:13:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 14:13:47,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:47,829 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:47,829 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:47,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:47,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1929851583, now seen corresponding path program 1 times [2018-11-18 14:13:47,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:47,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:47,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:47,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:47,832 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 14:13:47,902 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:47,902 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:47,903 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 14:13:47,903 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [155], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:47,906 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:47,907 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:48,074 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:13:48,074 INFO L272 AbstractInterpreter]: Visited 60 different actions 82 times. Merged at 6 different actions 6 times. Never widened. Performed 4559 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4559 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 14:13:48,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:48,082 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:13:48,224 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 97.28% of their original sizes. [2018-11-18 14:13:48,224 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:13:48,279 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-18 14:13:48,279 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:13:48,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:13:48,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-18 14:13:48,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:48,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:13:48,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:13:48,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:13:48,280 INFO L87 Difference]: Start difference. First operand 1562 states and 1967 transitions. Second operand 12 states. [2018-11-18 14:13:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:50,309 INFO L93 Difference]: Finished difference Result 3001 states and 3834 transitions. [2018-11-18 14:13:50,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:13:50,309 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 140 [2018-11-18 14:13:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:50,314 INFO L225 Difference]: With dead ends: 3001 [2018-11-18 14:13:50,314 INFO L226 Difference]: Without dead ends: 1868 [2018-11-18 14:13:50,317 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:13:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2018-11-18 14:13:50,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1789. [2018-11-18 14:13:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1789 states. [2018-11-18 14:13:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2232 transitions. [2018-11-18 14:13:50,440 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2232 transitions. Word has length 140 [2018-11-18 14:13:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:50,440 INFO L480 AbstractCegarLoop]: Abstraction has 1789 states and 2232 transitions. [2018-11-18 14:13:50,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:13:50,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2232 transitions. [2018-11-18 14:13:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-18 14:13:50,444 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:50,445 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:50,445 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:50,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:50,445 INFO L82 PathProgramCache]: Analyzing trace with hash 287362416, now seen corresponding path program 1 times [2018-11-18 14:13:50,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:50,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:50,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:50,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:50,446 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 14:13:50,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:13:50,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:13:50,513 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:50,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:13:50,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:13:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:13:50,514 INFO L87 Difference]: Start difference. First operand 1789 states and 2232 transitions. Second operand 4 states. [2018-11-18 14:13:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:50,639 INFO L93 Difference]: Finished difference Result 2749 states and 3433 transitions. [2018-11-18 14:13:50,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:13:50,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-11-18 14:13:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:50,643 INFO L225 Difference]: With dead ends: 2749 [2018-11-18 14:13:50,643 INFO L226 Difference]: Without dead ends: 984 [2018-11-18 14:13:50,645 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:13:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2018-11-18 14:13:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 956. [2018-11-18 14:13:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2018-11-18 14:13:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1164 transitions. [2018-11-18 14:13:50,678 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1164 transitions. Word has length 148 [2018-11-18 14:13:50,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:50,678 INFO L480 AbstractCegarLoop]: Abstraction has 956 states and 1164 transitions. [2018-11-18 14:13:50,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:13:50,678 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1164 transitions. [2018-11-18 14:13:50,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 14:13:50,679 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:50,680 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:50,680 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:50,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:50,680 INFO L82 PathProgramCache]: Analyzing trace with hash -53368765, now seen corresponding path program 1 times [2018-11-18 14:13:50,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:50,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:50,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:50,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:50,681 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 14:13:50,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:50,782 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:50,782 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 14:13:50,782 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [157], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:50,785 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:50,785 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:52,004 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:52,004 INFO L272 AbstractInterpreter]: Visited 116 different actions 727 times. Merged at 20 different actions 79 times. Never widened. Performed 30110 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30110 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 14:13:52,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:52,007 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:52,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:52,007 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/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 [2018-11-18 14:13:52,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:52,014 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:52,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:13:52,146 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:13:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 14:13:52,352 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:13:52,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 14:13:52,352 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:13:52,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 14:13:52,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 14:13:52,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:13:52,353 INFO L87 Difference]: Start difference. First operand 956 states and 1164 transitions. Second operand 14 states. [2018-11-18 14:13:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:53,687 INFO L93 Difference]: Finished difference Result 1919 states and 2508 transitions. [2018-11-18 14:13:53,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 14:13:53,688 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 140 [2018-11-18 14:13:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:53,691 INFO L225 Difference]: With dead ends: 1919 [2018-11-18 14:13:53,692 INFO L226 Difference]: Without dead ends: 1244 [2018-11-18 14:13:53,693 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 275 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 14:13:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2018-11-18 14:13:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1068. [2018-11-18 14:13:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-11-18 14:13:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1299 transitions. [2018-11-18 14:13:53,819 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1299 transitions. Word has length 140 [2018-11-18 14:13:53,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:53,819 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1299 transitions. [2018-11-18 14:13:53,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 14:13:53,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1299 transitions. [2018-11-18 14:13:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 14:13:53,823 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:53,823 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 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] [2018-11-18 14:13:53,823 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:53,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1545634826, now seen corresponding path program 1 times [2018-11-18 14:13:53,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:53,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:53,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:53,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:53,824 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 14:13:53,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:53,950 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:53,950 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-18 14:13:53,950 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [157], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:53,954 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:53,954 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:54,749 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:54,749 INFO L272 AbstractInterpreter]: Visited 117 different actions 578 times. Merged at 23 different actions 72 times. Never widened. Performed 18650 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-18 14:13:54,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:54,762 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:54,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:54,762 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:13:54,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:54,769 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:54,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 14:13:54,928 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:13:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 14:13:55,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:13:55,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 14:13:55,257 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:55,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:13:55,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:13:55,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:13:55,258 INFO L87 Difference]: Start difference. First operand 1068 states and 1299 transitions. Second operand 6 states. [2018-11-18 14:13:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:55,318 INFO L93 Difference]: Finished difference Result 1843 states and 2297 transitions. [2018-11-18 14:13:55,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:13:55,319 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-11-18 14:13:55,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:55,322 INFO L225 Difference]: With dead ends: 1843 [2018-11-18 14:13:55,323 INFO L226 Difference]: Without dead ends: 1056 [2018-11-18 14:13:55,324 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 385 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:13:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2018-11-18 14:13:55,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2018-11-18 14:13:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-11-18 14:13:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1276 transitions. [2018-11-18 14:13:55,370 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1276 transitions. Word has length 195 [2018-11-18 14:13:55,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:55,371 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1276 transitions. [2018-11-18 14:13:55,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:13:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1276 transitions. [2018-11-18 14:13:55,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-11-18 14:13:55,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:55,374 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 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] [2018-11-18 14:13:55,374 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:55,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:55,374 INFO L82 PathProgramCache]: Analyzing trace with hash -517371837, now seen corresponding path program 1 times [2018-11-18 14:13:55,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:55,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:55,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:55,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:55,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 56 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-18 14:13:55,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:55,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:55,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-11-18 14:13:55,485 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [155], [157], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:55,486 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:55,486 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:56,241 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:56,241 INFO L272 AbstractInterpreter]: Visited 118 different actions 656 times. Merged at 30 different actions 125 times. Never widened. Performed 20128 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20128 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 14:13:56,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:56,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:56,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:56,246 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:13:56,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:56,252 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:56,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 81 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 14:13:56,384 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:13:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 56 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-18 14:13:56,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:13:56,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-18 14:13:56,541 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:13:56,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:13:56,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:13:56,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:13:56,542 INFO L87 Difference]: Start difference. First operand 1056 states and 1276 transitions. Second operand 12 states. [2018-11-18 14:13:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:57,041 INFO L93 Difference]: Finished difference Result 2161 states and 2656 transitions. [2018-11-18 14:13:57,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:13:57,042 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 197 [2018-11-18 14:13:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:57,047 INFO L225 Difference]: With dead ends: 2161 [2018-11-18 14:13:57,047 INFO L226 Difference]: Without dead ends: 1231 [2018-11-18 14:13:57,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 394 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 14:13:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2018-11-18 14:13:57,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1104. [2018-11-18 14:13:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2018-11-18 14:13:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1268 transitions. [2018-11-18 14:13:57,111 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1268 transitions. Word has length 197 [2018-11-18 14:13:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:57,112 INFO L480 AbstractCegarLoop]: Abstraction has 1104 states and 1268 transitions. [2018-11-18 14:13:57,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:13:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1268 transitions. [2018-11-18 14:13:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 14:13:57,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:57,116 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:57,116 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:57,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1292119151, now seen corresponding path program 1 times [2018-11-18 14:13:57,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:57,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:57,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:57,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:57,118 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-11-18 14:13:57,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:57,254 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:57,255 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-18 14:13:57,255 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [155], [157], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:57,256 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:57,256 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:58,113 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:58,113 INFO L272 AbstractInterpreter]: Visited 124 different actions 773 times. Merged at 34 different actions 152 times. Never widened. Performed 27677 root evaluator evaluations with a maximum evaluation depth of 5. Performed 27677 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-18 14:13:58,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:58,118 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:58,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:58,118 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:13:58,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:58,135 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:58,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-18 14:13:58,228 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:13:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-11-18 14:13:58,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:13:58,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 14:13:58,419 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:13:58,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:13:58,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:13:58,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:13:58,420 INFO L87 Difference]: Start difference. First operand 1104 states and 1268 transitions. Second operand 6 states. [2018-11-18 14:13:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:13:58,481 INFO L93 Difference]: Finished difference Result 1953 states and 2279 transitions. [2018-11-18 14:13:58,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:13:58,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2018-11-18 14:13:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:13:58,486 INFO L225 Difference]: With dead ends: 1953 [2018-11-18 14:13:58,486 INFO L226 Difference]: Without dead ends: 1124 [2018-11-18 14:13:58,488 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 483 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:13:58,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2018-11-18 14:13:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1124. [2018-11-18 14:13:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2018-11-18 14:13:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1290 transitions. [2018-11-18 14:13:58,559 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1290 transitions. Word has length 244 [2018-11-18 14:13:58,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:13:58,560 INFO L480 AbstractCegarLoop]: Abstraction has 1124 states and 1290 transitions. [2018-11-18 14:13:58,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:13:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1290 transitions. [2018-11-18 14:13:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 14:13:58,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:13:58,564 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:13:58,564 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:13:58,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1126365327, now seen corresponding path program 1 times [2018-11-18 14:13:58,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:13:58,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:58,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:58,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:13:58,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:13:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-11-18 14:13:58,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:58,695 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:13:58,695 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-18 14:13:58,695 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [94], [100], [104], [108], [111], [114], [116], [122], [124], [130], [136], [144], [145], [146], [147], [148], [149], [150], [152], [157], [159], [160], [161], [162], [199], [202], [206], [212], [215], [219], [220], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [256], [257], [258], [259], [261], [262], [263], [264], [265], [266], [267], [268], [269], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [293], [294], [297], [298], [303], [304], [305], [306], [307], [308], [309], [310], [311], [313], [314], [315], [316], [319], [320] [2018-11-18 14:13:58,697 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:13:58,697 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:13:59,713 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:13:59,713 INFO L272 AbstractInterpreter]: Visited 123 different actions 744 times. Merged at 28 different actions 121 times. Never widened. Performed 33664 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33664 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 16 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-18 14:13:59,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:13:59,726 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:13:59,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:13:59,726 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:13:59,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:13:59,735 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:13:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:13:59,815 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:13:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 14:13:59,863 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:14:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-11-18 14:14:00,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:14:00,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 14:14:00,084 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:14:00,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:14:00,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:14:00,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:14:00,085 INFO L87 Difference]: Start difference. First operand 1124 states and 1290 transitions. Second operand 5 states. [2018-11-18 14:14:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:14:00,130 INFO L93 Difference]: Finished difference Result 1436 states and 1653 transitions. [2018-11-18 14:14:00,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:14:00,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2018-11-18 14:14:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:14:00,131 INFO L225 Difference]: With dead ends: 1436 [2018-11-18 14:14:00,131 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:14:00,133 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 485 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:14:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:14:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:14:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:14:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:14:00,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2018-11-18 14:14:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:14:00,134 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:14:00,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:14:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:14:00,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:14:00,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:14:00,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:00,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 14:14:01,029 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 28 [2018-11-18 14:14:01,145 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 26 [2018-11-18 14:14:01,581 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 42 [2018-11-18 14:14:01,933 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 40 [2018-11-18 14:14:02,643 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 41 [2018-11-18 14:14:03,129 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 37 [2018-11-18 14:14:03,144 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 932 938) the Hoare annotation is: true [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 932 938) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 939 947) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 939 947) the Hoare annotation is: true [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 939 947) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 958 982) the Hoare annotation is: true [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 958 982) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L421 ceAbstractionStarter]: At program point L972(line 972) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 0))) (.cse3 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= ~waterLevel~0 1)))) (or .cse1 (< ~waterLevel~0 1) .cse2) (or .cse1 .cse0 .cse3) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse2))) [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point L970(lines 970 976) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L421 ceAbstractionStarter]: At program point L968(line 968) the Hoare annotation is: (let ((.cse1 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 0))) (.cse3 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= ~waterLevel~0 1)))) (or .cse1 (< ~waterLevel~0 1) .cse2) (or .cse1 .cse0 .cse3) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse2))) [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point L968-1(line 968) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point L966(lines 966 979) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point L966-1(lines 958 982) no Hoare annotation was computed. [2018-11-18 14:14:03,144 INFO L428 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: true [2018-11-18 14:14:03,144 INFO L425 ceAbstractionStarter]: For program point L964-1(line 964) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L897(line 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L896-1(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 890 912) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 890 912) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 890 912) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L902(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= main_~tmp~8 ~systemActive~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L902-1(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= main_~tmp~8 ~systemActive~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point L900(lines 900 907) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point L900-1(lines 900 907) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point L898(line 898) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 355 369) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~pumpRunning~0)|)))) (and (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) .cse0 (and (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1))) (or (or (not (= |old(~systemActive~0)| 1)) (not (= ~waterLevel~0 2))) .cse0 (= ~systemActive~0 1)) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1)))) [2018-11-18 14:14:03,145 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 365) no Hoare annotation was computed. [2018-11-18 14:14:03,145 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 355 369) the Hoare annotation is: (let ((.cse1 (not (= 1 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 2)) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (or (= |old(~systemActive~0)| 0) .cse0) .cse1 (and (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1))) (or (or (not (= |old(~systemActive~0)| 1)) (not (= ~waterLevel~0 2))) .cse1 (= ~systemActive~0 1)) (or (= 0 ~pumpRunning~0) (or .cse2 .cse0)) (or (or .cse2 (not (= ~waterLevel~0 1))) (= ~pumpRunning~0 0)))) [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 355 369) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 272 280) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 272 280) the Hoare annotation is: true [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 272 280) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 336 354) the Hoare annotation is: true [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 349) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L428 ceAbstractionStarter]: At program point L343(line 343) the Hoare annotation is: true [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point L345-2(lines 345 349) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point L343-1(line 343) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 336 354) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 336 354) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 925 931) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 925 931) the Hoare annotation is: true [2018-11-18 14:14:03,146 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 877 886) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 877 886) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 877 886) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 253 260) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= ~pumpRunning~0 1))) (and (or (< ~waterLevel~0 1) .cse0 (not (= ~systemActive~0 1)) .cse1) (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0 .cse1))) [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 253 260) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 253 260) no Hoare annotation was computed. [2018-11-18 14:14:03,146 INFO L425 ceAbstractionStarter]: For program point L226-1(line 226) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point L224(lines 224 241) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 220 244) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 220 244) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (< ~waterLevel~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0 (= ~pumpRunning~0 1)) (or (= 0 ~pumpRunning~0) (or .cse1 .cse0) (< ~waterLevel~0 2)) (or (or .cse0 (not (= ~waterLevel~0 1))) .cse1 (= ~pumpRunning~0 0)))) [2018-11-18 14:14:03,147 INFO L421 ceAbstractionStarter]: At program point L239(line 239) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (< ~waterLevel~0 1) (not (= 1 |old(~pumpRunning~0)|)) .cse0) (or (= 0 ~pumpRunning~0) (or .cse1 .cse0) (< ~waterLevel~0 2)) (or (or .cse0 (not (= ~waterLevel~0 1))) .cse1 (= ~pumpRunning~0 0)))) [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point L239-1(lines 220 244) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L421 ceAbstractionStarter]: At program point L234(line 234) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 14:14:03,147 INFO L421 ceAbstractionStarter]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) (and (<= 1 processEnvironment_~tmp~1) (= ~pumpRunning~0 1)) .cse1))) [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point L228(lines 228 236) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L421 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= ~pumpRunning~0 1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 127 140) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 127 140) the Hoare annotation is: true [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 127 140) no Hoare annotation was computed. [2018-11-18 14:14:03,147 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 186 192) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 186 192) the Hoare annotation is: true [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 380 447) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point L440(lines 389 441) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 380 447) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point L430(line 430) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0))) [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point L428(lines 428 434) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point L428-1(lines 420 435) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~systemActive~0 1)) (.cse3 (= 0 ~pumpRunning~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 (= ~pumpRunning~0 1) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (and .cse3 (= ~waterLevel~0 1) .cse2) .cse1) (and .cse0 .cse3 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 0) .cse3 (<= 1 ~waterLevel~0) .cse2))) [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point L391(lines 390 439) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point L422(line 422) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (and .cse1 (= ~pumpRunning~0 0)) (= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 435) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L421 ceAbstractionStarter]: At program point L412(line 412) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= test_~splverifierCounter~0 0)) (.cse3 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 (<= 1 ~waterLevel~0) .cse1) (and .cse2 (= ~pumpRunning~0 1) .cse3 .cse1) (and .cse2 .cse0 .cse3 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse3) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point L410(lines 410 416) no Hoare annotation was computed. [2018-11-18 14:14:03,148 INFO L425 ceAbstractionStarter]: For program point L410-1(lines 410 416) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L421 ceAbstractionStarter]: At program point L437(lines 390 439) the Hoare annotation is: (let ((.cse3 (<= 2 ~waterLevel~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse2) (and .cse3 (= ~pumpRunning~0 1) .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse3 .cse0 .cse2 .cse1))) [2018-11-18 14:14:03,149 INFO L421 ceAbstractionStarter]: At program point L402(line 402) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= ~systemActive~0 0) .cse2 .cse3 .cse1) (and .cse2 .cse3 .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point L400(lines 400 406) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 400 406) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point L392(lines 392 396) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point L390-1(lines 390 439) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 380 447) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 141 149) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 141 149) the Hoare annotation is: true [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 141 149) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:14:03,149 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-18 14:14:03,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 245 252) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 317 335) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 330) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 317 335) the Hoare annotation is: true [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 317 335) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L428 ceAbstractionStarter]: At program point L324(line 324) the Hoare annotation is: true [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point L324-1(line 324) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 118 126) the Hoare annotation is: true [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 118 126) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 118 126) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 74 85) no Hoare annotation was computed. [2018-11-18 14:14:03,150 INFO L428 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 74 85) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 74 85) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 816 845) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point L830(lines 830 834) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L428 ceAbstractionStarter]: At program point L830-1(lines 830 834) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point L826-1(lines 826 840) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L428 ceAbstractionStarter]: At program point L826-3(lines 826 840) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L428 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point L822-1(line 822) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L428 ceAbstractionStarter]: At program point L841(lines 816 845) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point L837(line 837) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 816 845) the Hoare annotation is: true [2018-11-18 14:14:03,151 INFO L425 ceAbstractionStarter]: For program point L827(line 827) no Hoare annotation was computed. [2018-11-18 14:14:03,151 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 162 185) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and (= 0 ~pumpRunning~0) .cse4)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse0 (or .cse5 .cse3)) (.cse6 (not (= ~systemActive~0 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse8 (and .cse4 (= ~pumpRunning~0 0)))) (and (or (or .cse0 .cse1) .cse2) (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse1 .cse3)) (and (= ~pumpRunning~0 1) .cse4)) (or .cse2 (or .cse5 .cse6 .cse1)) (or (or .cse0 .cse7) .cse8) (or .cse6 (or .cse5 .cse7) .cse8)))) [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~systemActive~0 1)))) (let ((.cse0 (not (= ~systemActive~0 0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse5 (or .cse1 .cse4)) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (or .cse1 .cse2)) (or .cse1 .cse0 .cse3) (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse3 .cse4)) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (= ~pumpRunning~0 1))) (or (or .cse5 .cse3) (and (= 0 ~pumpRunning~0) .cse6)) (or (or .cse5 .cse2) (and .cse6 (= ~pumpRunning~0 0)))))) [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point L173(lines 173 179) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (and .cse2 .cse5)) (.cse6 (not (= ~systemActive~0 0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse0 .cse1)) (and .cse2 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse3 .cse4 (< |old(~waterLevel~0)| 1) .cse1 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse5)) (or (or .cse4 .cse6 .cse0) .cse3) (or .cse6 (or .cse4 (not (= |old(~waterLevel~0)| 1))) (and .cse5 (= ~pumpRunning~0 0)))))) [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 162 185) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= |old(~waterLevel~0)| 1)))) (or .cse1 .cse0 .cse2) (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse2 .cse3)) (and (= ~pumpRunning~0 1) (= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse3))) [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 162 185) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point L166(lines 165 184) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 50 61) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 50 61) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 50 61) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 870 876) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 870 876) the Hoare annotation is: true [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 14:14:03,152 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2018-11-18 14:14:03,152 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: (or (not (= ~systemActive~0 0)) (or (= |old(~systemActive~0)| 0) (not (= 1 ~pumpRunning~0)) (< ~waterLevel~0 2))) [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 194 218) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (= 0 ~pumpRunning~0) (or .cse0 .cse1) (< ~waterLevel~0 2)) (or (or .cse1 (not (= ~waterLevel~0 1))) .cse0 (= ~pumpRunning~0 0)))) [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 194 218) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point L213(line 213) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point L213-1(lines 194 218) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point L208(line 208) the Hoare annotation is: (let ((.cse1 (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (not (= ~waterLevel~0 1))) (and .cse1 (= ~pumpRunning~0 0)) .cse2) (or (and (= 0 ~pumpRunning~0) .cse1) (or .cse2 .cse0) (< ~waterLevel~0 2)))) [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= ~systemActive~0 1))) [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point L202(lines 202 210) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point L200(line 200) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (= 0 ~pumpRunning~0) (or .cse0 .cse1) (< ~waterLevel~0 2)) (or (or .cse1 (not (= ~waterLevel~0 1))) .cse0 (= ~pumpRunning~0 0)))) [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point L200-1(line 200) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point L198(lines 198 215) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 62 73) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 62 73) no Hoare annotation was computed. [2018-11-18 14:14:03,153 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 62 73) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= ~systemActive~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse1 .cse3 (not (= 1 ~pumpRunning~0)) .cse2) (or .cse0 .cse4 .cse3 .cse2) (or .cse4 (or .cse0 (not (= |old(~waterLevel~0)| 1))) .cse2))) [2018-11-18 14:14:03,154 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2018-11-18 14:14:03,154 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2018-11-18 14:14:03,154 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2018-11-18 14:14:03,154 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2018-11-18 14:14:03,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:14:03 BoogieIcfgContainer [2018-11-18 14:14:03,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:14:03,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:14:03,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:14:03,168 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:14:03,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:13:40" (3/4) ... [2018-11-18 14:14:03,172 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:14:03,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 14:14:03,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 14:14:03,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 14:14:03,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 14:14:03,177 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 14:14:03,178 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 14:14:03,185 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 14:14:03,185 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 14:14:03,185 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:14:03,206 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(systemActive) == 1) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((2 <= waterLevel && 0 == pumpRunning) && systemActive == 1) && splverifierCounter == 0) [2018-11-18 14:14:03,206 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-18 14:14:03,240 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9d71e457-744d-4e78-a68c-025a09568aaa/bin-2019/utaipan/witness.graphml [2018-11-18 14:14:03,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:14:03,240 INFO L168 Benchmark]: Toolchain (without parser) took 23879.63 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 956.6 MB in the beginning and 1.5 GB in the end (delta: -513.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,241 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:14:03,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.28 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,242 INFO L168 Benchmark]: Boogie Preprocessor took 31.37 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,242 INFO L168 Benchmark]: RCFGBuilder took 513.24 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: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,242 INFO L168 Benchmark]: TraceAbstraction took 22847.51 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -431.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-18 14:14:03,242 INFO L168 Benchmark]: Witness Printer took 71.71 ms. Allocated memory is still 2.7 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:14:03,243 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.28 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.37 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 513.24 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: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22847.51 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -431.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 71.71 ms. Allocated memory is still 2.7 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: (((((!(\old(systemActive) == 1) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((2 <= waterLevel && 0 == pumpRunning) && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 153 locations, 1 error locations. SAFE Result, 22.7s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2627 SDtfs, 3367 SDslu, 7322 SDs, 0 SdLazy, 6742 SolverSat, 1722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2706 GetRequests, 2482 SyntacticMatches, 31 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1789occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.4s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9979728103519984 AbsIntWeakeningRatio, 0.9051094890510949 AbsIntAvgWeakeningVarsNumRemoved, 44.715328467153284 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 702 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 4283 PreInvPairs, 4363 NumberOfFragments, 1647 HoareAnnotationTreeSize, 4283 FomulaSimplifications, 22776 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 63 FomulaSimplificationsInter, 21547 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2913 NumberOfCodeBlocks, 2913 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3998 ConstructedInterpolants, 0 QuantifiedInterpolants, 906583 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5199 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 26 InterpolantComputations, 9 PerfectInterpolantSequences, 2125/2246 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...