./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 82fb1dfaeb04705f6833d1531288fda63f898d4b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:16:53,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:16:53,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:16:53,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:16:53,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:16:53,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:16:53,772 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:16:53,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:16:53,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:16:53,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:16:53,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:16:53,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:16:53,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:16:53,776 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:16:53,777 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:16:53,778 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:16:53,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:16:53,779 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:16:53,780 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:16:53,781 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:16:53,782 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:16:53,783 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:16:53,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:16:53,785 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:16:53,785 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:16:53,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:16:53,786 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:16:53,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:16:53,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:16:53,788 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:16:53,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:16:53,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:16:53,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:16:53,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:16:53,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:16:53,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:16:53,790 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 15:16:53,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:16:53,797 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:16:53,797 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:16:53,797 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:16:53,797 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:16:53,797 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:16:53,797 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:16:53,798 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:16:53,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:16:53,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:16:53,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:16:53,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:16:53,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:16:53,801 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:16:53,801 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_cc055e31-6f30-4391-a046-ff42d8c902bb/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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2018-11-23 15:16:53,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:16:53,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:16:53,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:16:53,835 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:16:53,835 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:16:53,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-23 15:16:53,880 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/data/fe1deba37/8d6c925d3ea749b7846f1f83d02c1e93/FLAGd13a91c62 [2018-11-23 15:16:54,318 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:16:54,319 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-23 15:16:54,325 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/data/fe1deba37/8d6c925d3ea749b7846f1f83d02c1e93/FLAGd13a91c62 [2018-11-23 15:16:54,334 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/data/fe1deba37/8d6c925d3ea749b7846f1f83d02c1e93 [2018-11-23 15:16:54,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:16:54,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:16:54,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:16:54,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:16:54,340 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:16:54,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f50e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54, skipping insertion in model container [2018-11-23 15:16:54,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:16:54,385 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:16:54,576 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:16:54,585 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:16:54,684 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:16:54,698 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:16:54,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54 WrapperNode [2018-11-23 15:16:54,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:16:54,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:16:54,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:16:54,699 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:16:54,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:16:54,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:16:54,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:16:54,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:16:54,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... [2018-11-23 15:16:54,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:16:54,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:16:54,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:16:54,743 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:16:54,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:16:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 15:16:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 15:16:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 15:16:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 15:16:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:16:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:16:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-23 15:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-23 15:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 15:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 15:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 15:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 15:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 15:16:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 15:16:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 15:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 15:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 15:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 15:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 15:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 15:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 15:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 15:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 15:16:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 15:16:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 15:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 15:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 15:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 15:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 15:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 15:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 15:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 15:16:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 15:16:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 15:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 15:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 15:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 15:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 15:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 15:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 15:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 15:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 15:16:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 15:16:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 15:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 15:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 15:16:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 15:16:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 15:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 15:16:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:16:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:16:55,185 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:16:55,186 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 15:16:55,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:16:55 BoogieIcfgContainer [2018-11-23 15:16:55,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:16:55,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:16:55,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:16:55,189 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:16:55,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:16:54" (1/3) ... [2018-11-23 15:16:55,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759ebe4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:16:55, skipping insertion in model container [2018-11-23 15:16:55,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:16:54" (2/3) ... [2018-11-23 15:16:55,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759ebe4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:16:55, skipping insertion in model container [2018-11-23 15:16:55,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:16:55" (3/3) ... [2018-11-23 15:16:55,192 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-11-23 15:16:55,198 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:16:55,203 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:16:55,212 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:16:55,234 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:16:55,234 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:16:55,234 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:16:55,234 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:16:55,234 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:16:55,234 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:16:55,234 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:16:55,235 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:16:55,249 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-11-23 15:16:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 15:16:55,255 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:55,256 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:55,258 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:55,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:55,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1477324891, now seen corresponding path program 1 times [2018-11-23 15:16:55,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:55,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:55,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,291 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:16:55,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:16:55,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:16:55,441 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:16:55,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 15:16:55,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 15:16:55,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 15:16:55,453 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-11-23 15:16:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:16:55,483 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2018-11-23 15:16:55,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 15:16:55,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 15:16:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:16:55,491 INFO L225 Difference]: With dead ends: 268 [2018-11-23 15:16:55,491 INFO L226 Difference]: Without dead ends: 134 [2018-11-23 15:16:55,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 15:16:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-23 15:16:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-23 15:16:55,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-23 15:16:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-11-23 15:16:55,529 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2018-11-23 15:16:55,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:16:55,530 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-11-23 15:16:55,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 15:16:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-11-23 15:16:55,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 15:16:55,531 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:55,532 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:55,532 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:55,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:55,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1184699002, now seen corresponding path program 1 times [2018-11-23 15:16:55,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:55,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:55,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,533 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:16:55,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:16:55,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 15:16:55,604 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:16:55,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:16:55,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:16:55,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:16:55,606 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2018-11-23 15:16:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:16:55,625 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2018-11-23 15:16:55,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:16:55,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 15:16:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:16:55,627 INFO L225 Difference]: With dead ends: 211 [2018-11-23 15:16:55,627 INFO L226 Difference]: Without dead ends: 125 [2018-11-23 15:16:55,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:16:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-23 15:16:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-23 15:16:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-23 15:16:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-11-23 15:16:55,641 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2018-11-23 15:16:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:16:55,642 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-11-23 15:16:55,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:16:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-11-23 15:16:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 15:16:55,643 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:55,643 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:55,643 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:55,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:55,644 INFO L82 PathProgramCache]: Analyzing trace with hash -161920199, now seen corresponding path program 1 times [2018-11-23 15:16:55,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:55,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:55,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:55,647 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:16:55,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:16:55,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 15:16:55,763 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:16:55,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 15:16:55,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 15:16:55,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 15:16:55,764 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2018-11-23 15:16:56,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:16:56,122 INFO L93 Difference]: Finished difference Result 377 states and 456 transitions. [2018-11-23 15:16:56,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 15:16:56,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-23 15:16:56,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:16:56,125 INFO L225 Difference]: With dead ends: 377 [2018-11-23 15:16:56,125 INFO L226 Difference]: Without dead ends: 276 [2018-11-23 15:16:56,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:16:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-11-23 15:16:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2018-11-23 15:16:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-11-23 15:16:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 324 transitions. [2018-11-23 15:16:56,154 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 324 transitions. Word has length 51 [2018-11-23 15:16:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:16:56,154 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 324 transitions. [2018-11-23 15:16:56,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 15:16:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 324 transitions. [2018-11-23 15:16:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 15:16:56,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:56,157 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:56,157 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:56,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:56,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1092518988, now seen corresponding path program 1 times [2018-11-23 15:16:56,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:56,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:56,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:56,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:56,159 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:16:56,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:16:56,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 15:16:56,270 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:16:56,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 15:16:56,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 15:16:56,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 15:16:56,271 INFO L87 Difference]: Start difference. First operand 268 states and 324 transitions. Second operand 10 states. [2018-11-23 15:16:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:16:56,632 INFO L93 Difference]: Finished difference Result 952 states and 1244 transitions. [2018-11-23 15:16:56,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 15:16:56,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-23 15:16:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:16:56,638 INFO L225 Difference]: With dead ends: 952 [2018-11-23 15:16:56,639 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 15:16:56,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 15:16:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 15:16:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 696. [2018-11-23 15:16:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2018-11-23 15:16:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 876 transitions. [2018-11-23 15:16:56,689 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 876 transitions. Word has length 57 [2018-11-23 15:16:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:16:56,690 INFO L480 AbstractCegarLoop]: Abstraction has 696 states and 876 transitions. [2018-11-23 15:16:56,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 15:16:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 876 transitions. [2018-11-23 15:16:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 15:16:56,693 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:56,693 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:56,694 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:56,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:56,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1019337618, now seen corresponding path program 1 times [2018-11-23 15:16:56,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:56,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:56,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:56,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:56,696 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:16:56,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:16:56,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:16:56,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:16:56,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:16:56,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:16:56,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:16:56,760 INFO L87 Difference]: Start difference. First operand 696 states and 876 transitions. Second operand 4 states. [2018-11-23 15:16:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:16:57,043 INFO L93 Difference]: Finished difference Result 1746 states and 2403 transitions. [2018-11-23 15:16:57,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:16:57,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-23 15:16:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:16:57,049 INFO L225 Difference]: With dead ends: 1746 [2018-11-23 15:16:57,049 INFO L226 Difference]: Without dead ends: 1074 [2018-11-23 15:16:57,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 15:16:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2018-11-23 15:16:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 939. [2018-11-23 15:16:57,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-11-23 15:16:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1190 transitions. [2018-11-23 15:16:57,098 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1190 transitions. Word has length 61 [2018-11-23 15:16:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:16:57,098 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1190 transitions. [2018-11-23 15:16:57,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:16:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1190 transitions. [2018-11-23 15:16:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 15:16:57,100 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:16:57,100 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:16:57,100 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:16:57,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:57,101 INFO L82 PathProgramCache]: Analyzing trace with hash 880447573, now seen corresponding path program 1 times [2018-11-23 15:16:57,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:16:57,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:57,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:57,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:16:57,102 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:16:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-23 15:16:57,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:16:57,189 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:16:57,190 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-11-23 15:16:57,191 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [90], [99], [103], [107], [110], [115], [121], [123], [126], [128], [131], [144], [145], [159], [160], [173], [180], [183], [217], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [270], [280], [281], [284], [285], [286], [287], [296], [297], [302], [303], [304] [2018-11-23 15:16:57,216 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:16:57,216 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:16:57,653 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:16:57,654 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 4709 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4709 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-11-23 15:16:57,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:16:57,666 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:16:57,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:16:57,666 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:16:57,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:16:57,685 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:16:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:16:57,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:16:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 15:16:57,890 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:16:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 15:16:58,093 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:16:58,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-23 15:16:58,093 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:16:58,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 15:16:58,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 15:16:58,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:16:58,094 INFO L87 Difference]: Start difference. First operand 939 states and 1190 transitions. Second operand 12 states. [2018-11-23 15:17:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:00,008 INFO L93 Difference]: Finished difference Result 2238 states and 3071 transitions. [2018-11-23 15:17:00,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-23 15:17:00,008 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-11-23 15:17:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:00,013 INFO L225 Difference]: With dead ends: 2238 [2018-11-23 15:17:00,013 INFO L226 Difference]: Without dead ends: 1559 [2018-11-23 15:17:00,016 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-23 15:17:00,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2018-11-23 15:17:00,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1359. [2018-11-23 15:17:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-11-23 15:17:00,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1741 transitions. [2018-11-23 15:17:00,085 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1741 transitions. Word has length 88 [2018-11-23 15:17:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:00,086 INFO L480 AbstractCegarLoop]: Abstraction has 1359 states and 1741 transitions. [2018-11-23 15:17:00,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 15:17:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1741 transitions. [2018-11-23 15:17:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-23 15:17:00,090 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:00,090 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:00,090 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:00,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:00,091 INFO L82 PathProgramCache]: Analyzing trace with hash 415476035, now seen corresponding path program 1 times [2018-11-23 15:17:00,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:00,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:00,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:00,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:00,092 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 15:17:00,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:00,205 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:00,206 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-11-23 15:17:00,206 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], [99], [103], [107], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:00,209 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:00,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:00,319 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:17:00,319 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1948 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1948 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 15:17:00,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:00,321 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:17:00,476 INFO L227 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 97.33% of their original sizes. [2018-11-23 15:17:00,476 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:17:00,540 INFO L415 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-11-23 15:17:00,541 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:17:00,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:17:00,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-23 15:17:00,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:00,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 15:17:00,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 15:17:00,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-11-23 15:17:00,542 INFO L87 Difference]: Start difference. First operand 1359 states and 1741 transitions. Second operand 13 states. [2018-11-23 15:17:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:02,445 INFO L93 Difference]: Finished difference Result 2820 states and 3624 transitions. [2018-11-23 15:17:02,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 15:17:02,445 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-11-23 15:17:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:02,452 INFO L225 Difference]: With dead ends: 2820 [2018-11-23 15:17:02,452 INFO L226 Difference]: Without dead ends: 1485 [2018-11-23 15:17:02,455 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-11-23 15:17:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2018-11-23 15:17:02,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1461. [2018-11-23 15:17:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-11-23 15:17:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1863 transitions. [2018-11-23 15:17:02,531 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1863 transitions. Word has length 132 [2018-11-23 15:17:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:02,532 INFO L480 AbstractCegarLoop]: Abstraction has 1461 states and 1863 transitions. [2018-11-23 15:17:02,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 15:17:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1863 transitions. [2018-11-23 15:17:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-23 15:17:02,535 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:02,535 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:02,535 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:02,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:02,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1740332229, now seen corresponding path program 1 times [2018-11-23 15:17:02,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:02,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:02,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:02,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:02,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 15:17:02,639 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:02,639 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:02,639 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-11-23 15:17:02,639 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], [99], [103], [107], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:02,642 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:02,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:03,549 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:17:03,549 INFO L272 AbstractInterpreter]: Visited 109 different actions 503 times. Merged at 16 different actions 49 times. Never widened. Performed 17928 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17928 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-23 15:17:03,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:03,557 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:17:03,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:03,557 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:17:03,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:03,570 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:17:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:03,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 15:17:03,686 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 15:17:03,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:17:03,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 15:17:03,845 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:03,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 15:17:03,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 15:17:03,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 15:17:03,846 INFO L87 Difference]: Start difference. First operand 1461 states and 1863 transitions. Second operand 5 states. [2018-11-23 15:17:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:03,926 INFO L93 Difference]: Finished difference Result 2845 states and 3735 transitions. [2018-11-23 15:17:03,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:17:03,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-11-23 15:17:03,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:03,933 INFO L225 Difference]: With dead ends: 2845 [2018-11-23 15:17:03,933 INFO L226 Difference]: Without dead ends: 1408 [2018-11-23 15:17:03,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 15:17:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2018-11-23 15:17:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1408. [2018-11-23 15:17:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2018-11-23 15:17:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1788 transitions. [2018-11-23 15:17:04,013 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1788 transitions. Word has length 132 [2018-11-23 15:17:04,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:04,014 INFO L480 AbstractCegarLoop]: Abstraction has 1408 states and 1788 transitions. [2018-11-23 15:17:04,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 15:17:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1788 transitions. [2018-11-23 15:17:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 15:17:04,016 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:04,017 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:04,017 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:04,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1454170434, now seen corresponding path program 1 times [2018-11-23 15:17:04,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:04,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:04,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:04,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:04,018 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 15:17:04,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:04,093 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:04,093 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-23 15:17:04,093 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], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:04,097 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:04,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:04,360 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 15:17:04,361 INFO L272 AbstractInterpreter]: Visited 58 different actions 79 times. Merged at 5 different actions 5 times. Never widened. Performed 4619 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4619 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 15:17:04,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:04,375 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 15:17:04,561 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 97.26% of their original sizes. [2018-11-23 15:17:04,561 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 15:17:04,646 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-23 15:17:04,646 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 15:17:04,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 15:17:04,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-23 15:17:04,646 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:04,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 15:17:04,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 15:17:04,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:17:04,647 INFO L87 Difference]: Start difference. First operand 1408 states and 1788 transitions. Second operand 15 states. [2018-11-23 15:17:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:06,531 INFO L93 Difference]: Finished difference Result 2750 states and 3535 transitions. [2018-11-23 15:17:06,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 15:17:06,531 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2018-11-23 15:17:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:06,536 INFO L225 Difference]: With dead ends: 2750 [2018-11-23 15:17:06,536 INFO L226 Difference]: Without dead ends: 1657 [2018-11-23 15:17:06,538 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-11-23 15:17:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2018-11-23 15:17:06,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1619. [2018-11-23 15:17:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-11-23 15:17:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2037 transitions. [2018-11-23 15:17:06,589 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2037 transitions. Word has length 136 [2018-11-23 15:17:06,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:06,589 INFO L480 AbstractCegarLoop]: Abstraction has 1619 states and 2037 transitions. [2018-11-23 15:17:06,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 15:17:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2037 transitions. [2018-11-23 15:17:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 15:17:06,592 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:06,592 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:06,592 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:06,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:06,592 INFO L82 PathProgramCache]: Analyzing trace with hash -129314240, now seen corresponding path program 1 times [2018-11-23 15:17:06,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:06,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:06,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:06,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:06,593 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 15:17:06,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:06,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:06,693 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-23 15:17:06,694 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], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:06,695 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:06,695 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:07,271 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:17:07,271 INFO L272 AbstractInterpreter]: Visited 114 different actions 516 times. Merged at 18 different actions 51 times. Never widened. Performed 16803 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16803 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-23 15:17:07,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:07,289 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:17:07,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:07,289 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:17:07,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:07,303 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:17:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:07,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:17:07,427 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 15:17:07,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:17:07,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 15:17:07,608 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:17:07,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 15:17:07,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 15:17:07,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-23 15:17:07,609 INFO L87 Difference]: Start difference. First operand 1619 states and 2037 transitions. Second operand 14 states. [2018-11-23 15:17:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:08,645 INFO L93 Difference]: Finished difference Result 2924 states and 3949 transitions. [2018-11-23 15:17:08,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 15:17:08,645 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-11-23 15:17:08,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:08,651 INFO L225 Difference]: With dead ends: 2924 [2018-11-23 15:17:08,651 INFO L226 Difference]: Without dead ends: 1831 [2018-11-23 15:17:08,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 266 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-23 15:17:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2018-11-23 15:17:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1505. [2018-11-23 15:17:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2018-11-23 15:17:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1889 transitions. [2018-11-23 15:17:08,727 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1889 transitions. Word has length 136 [2018-11-23 15:17:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:08,727 INFO L480 AbstractCegarLoop]: Abstraction has 1505 states and 1889 transitions. [2018-11-23 15:17:08,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 15:17:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1889 transitions. [2018-11-23 15:17:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-23 15:17:08,731 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:08,731 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:17:08,731 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:08,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:08,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1335201648, now seen corresponding path program 1 times [2018-11-23 15:17:08,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:08,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:08,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:08,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:08,733 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 15:17:08,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:17:08,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:17:08,780 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:08,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:17:08,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:17:08,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:17:08,780 INFO L87 Difference]: Start difference. First operand 1505 states and 1889 transitions. Second operand 4 states. [2018-11-23 15:17:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:08,866 INFO L93 Difference]: Finished difference Result 1729 states and 2166 transitions. [2018-11-23 15:17:08,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 15:17:08,867 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-11-23 15:17:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:08,869 INFO L225 Difference]: With dead ends: 1729 [2018-11-23 15:17:08,869 INFO L226 Difference]: Without dead ends: 600 [2018-11-23 15:17:08,871 INFO L631 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 [2018-11-23 15:17:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-11-23 15:17:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2018-11-23 15:17:08,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2018-11-23 15:17:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 737 transitions. [2018-11-23 15:17:08,892 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 737 transitions. Word has length 138 [2018-11-23 15:17:08,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:08,892 INFO L480 AbstractCegarLoop]: Abstraction has 600 states and 737 transitions. [2018-11-23 15:17:08,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:17:08,892 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 737 transitions. [2018-11-23 15:17:08,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-23 15:17:08,894 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:08,894 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 15:17:08,894 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:08,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:08,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1772883422, now seen corresponding path program 2 times [2018-11-23 15:17:08,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:08,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:08,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:08,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:08,896 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-23 15:17:08,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:08,976 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:08,976 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 15:17:08,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 15:17:08,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:08,976 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:17:08,984 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 15:17:08,984 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 15:17:09,058 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 15:17:09,058 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 15:17:09,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 15:17:09,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-23 15:17:09,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:17:09,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-23 15:17:09,421 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:09,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 15:17:09,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 15:17:09,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-23 15:17:09,422 INFO L87 Difference]: Start difference. First operand 600 states and 737 transitions. Second operand 9 states. [2018-11-23 15:17:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:10,122 INFO L93 Difference]: Finished difference Result 1436 states and 1882 transitions. [2018-11-23 15:17:10,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 15:17:10,123 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2018-11-23 15:17:10,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:10,125 INFO L225 Difference]: With dead ends: 1436 [2018-11-23 15:17:10,125 INFO L226 Difference]: Without dead ends: 1015 [2018-11-23 15:17:10,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 372 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-23 15:17:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2018-11-23 15:17:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 994. [2018-11-23 15:17:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-11-23 15:17:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1217 transitions. [2018-11-23 15:17:10,158 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1217 transitions. Word has length 189 [2018-11-23 15:17:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:10,158 INFO L480 AbstractCegarLoop]: Abstraction has 994 states and 1217 transitions. [2018-11-23 15:17:10,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 15:17:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1217 transitions. [2018-11-23 15:17:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-23 15:17:10,161 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:10,161 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 15:17:10,161 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:10,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash -645601056, now seen corresponding path program 1 times [2018-11-23 15:17:10,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:10,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:10,162 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:17:10,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:10,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-23 15:17:10,241 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:10,241 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:10,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-11-23 15:17:10,242 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], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:10,243 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:10,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:10,771 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:17:10,771 INFO L272 AbstractInterpreter]: Visited 115 different actions 528 times. Merged at 21 different actions 60 times. Never widened. Performed 16839 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16839 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 15:17:10,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:10,781 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:17:10,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:10,781 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:17:10,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:10,794 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:17:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:10,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:10,969 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-23 15:17:10,969 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-11-23 15:17:11,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:17:11,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 15:17:11,159 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:11,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:17:11,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:17:11,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 15:17:11,160 INFO L87 Difference]: Start difference. First operand 994 states and 1217 transitions. Second operand 6 states. [2018-11-23 15:17:11,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:11,195 INFO L93 Difference]: Finished difference Result 1774 states and 2218 transitions. [2018-11-23 15:17:11,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 15:17:11,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-11-23 15:17:11,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:11,200 INFO L225 Difference]: With dead ends: 1774 [2018-11-23 15:17:11,200 INFO L226 Difference]: Without dead ends: 961 [2018-11-23 15:17:11,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 373 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 15:17:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-11-23 15:17:11,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2018-11-23 15:17:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-11-23 15:17:11,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1166 transitions. [2018-11-23 15:17:11,245 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1166 transitions. Word has length 189 [2018-11-23 15:17:11,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:11,245 INFO L480 AbstractCegarLoop]: Abstraction has 961 states and 1166 transitions. [2018-11-23 15:17:11,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:17:11,245 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1166 transitions. [2018-11-23 15:17:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-11-23 15:17:11,248 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:11,248 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 15:17:11,248 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:11,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1007792563, now seen corresponding path program 1 times [2018-11-23 15:17:11,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:11,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:11,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:11,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:11,249 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-23 15:17:11,338 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:11,338 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:11,338 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-11-23 15:17:11,339 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], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:11,340 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:11,340 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:12,489 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:17:12,489 INFO L272 AbstractInterpreter]: Visited 116 different actions 942 times. Merged at 31 different actions 207 times. Widened at 1 different actions 1 times. Performed 33853 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33853 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 7 different actions. Largest state had 132 variables. [2018-11-23 15:17:12,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:12,497 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:17:12,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:12,497 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/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 [2018-11-23 15:17:12,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:12,503 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:17:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:12,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 75 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 15:17:12,592 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-11-23 15:17:12,786 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:17:12,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-23 15:17:12,786 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:17:12,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 15:17:12,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 15:17:12,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-23 15:17:12,787 INFO L87 Difference]: Start difference. First operand 961 states and 1166 transitions. Second operand 12 states. [2018-11-23 15:17:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:13,139 INFO L93 Difference]: Finished difference Result 2031 states and 2506 transitions. [2018-11-23 15:17:13,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 15:17:13,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2018-11-23 15:17:13,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:13,142 INFO L225 Difference]: With dead ends: 2031 [2018-11-23 15:17:13,142 INFO L226 Difference]: Without dead ends: 1142 [2018-11-23 15:17:13,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 382 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-23 15:17:13,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2018-11-23 15:17:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1035. [2018-11-23 15:17:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-11-23 15:17:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1173 transitions. [2018-11-23 15:17:13,175 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1173 transitions. Word has length 191 [2018-11-23 15:17:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:13,175 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1173 transitions. [2018-11-23 15:17:13,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 15:17:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1173 transitions. [2018-11-23 15:17:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-11-23 15:17:13,178 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:17:13,178 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 15:17:13,178 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:17:13,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:13,179 INFO L82 PathProgramCache]: Analyzing trace with hash 134531291, now seen corresponding path program 1 times [2018-11-23 15:17:13,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:17:13,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:13,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:13,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:17:13,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:17:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-11-23 15:17:13,238 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:13,239 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:17:13,239 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-11-23 15:17:13,239 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], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-11-23 15:17:13,240 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:17:13,240 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:17:14,500 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:17:14,500 INFO L272 AbstractInterpreter]: Visited 122 different actions 1025 times. Merged at 35 different actions 212 times. Never widened. Performed 40093 root evaluator evaluations with a maximum evaluation depth of 5. Performed 40093 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 8 different actions. Largest state had 132 variables. [2018-11-23 15:17:14,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:17:14,509 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:17:14,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:17:14,509 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:17:14,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:17:14,516 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:17:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:17:14,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:17:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-23 15:17:14,635 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:17:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-11-23 15:17:14,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:17:14,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 15:17:14,795 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:17:14,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 15:17:14,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 15:17:14,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:17:14,796 INFO L87 Difference]: Start difference. First operand 1035 states and 1173 transitions. Second operand 6 states. [2018-11-23 15:17:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:17:14,820 INFO L93 Difference]: Finished difference Result 1362 states and 1552 transitions. [2018-11-23 15:17:14,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 15:17:14,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2018-11-23 15:17:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:17:14,821 INFO L225 Difference]: With dead ends: 1362 [2018-11-23 15:17:14,821 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 15:17:14,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 467 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 15:17:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 15:17:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 15:17:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 15:17:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:17:14,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2018-11-23 15:17:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:17:14,824 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:17:14,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 15:17:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:17:14,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 15:17:14,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 15:17:15,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 15:17:15,806 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 18 [2018-11-23 15:17:16,842 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 37 [2018-11-23 15:17:17,510 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 299 305) the Hoare annotation is: true [2018-11-23 15:17:17,510 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 299 305) no Hoare annotation was computed. [2018-11-23 15:17:17,510 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 306 314) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 306 314) the Hoare annotation is: true [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 306 314) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 165) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 147 171) the Hoare annotation is: true [2018-11-23 15:17:17,511 INFO L444 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~systemActive~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (or .cse0 (not (= ~waterLevel~0 1)))) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse2 (or .cse0 .cse3)))) [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point L155(lines 155 168) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point L155-1(lines 147 171) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L451 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: true [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point L153-1(line 153) no Hoare annotation was computed. [2018-11-23 15:17:17,511 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 147 171) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point L126(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point L126-1(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 15:17:17,512 INFO L444 ceAbstractionStarter]: At program point L132-1(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2018-11-23 15:17:17,512 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 515 529) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L444 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))) (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) (and (not (= ~systemActive~0 0)) .cse0)))) [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point L519(lines 519 525) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 515 529) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~systemActive~0)| 0)) (.cse2 (and (not .cse3) .cse4))) (and (or .cse0 .cse1 .cse2) (or (not .cse0) .cse1 (and .cse3 .cse4)) (or (and (= ~systemActive~0 1) .cse4) (not (= |old(~systemActive~0)| 1))) (or (or .cse0 (< ~waterLevel~0 2)) .cse2)))) [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 515 529) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 432 440) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 432 440) the Hoare annotation is: true [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 432 440) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 496 514) the Hoare annotation is: true [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point L505(lines 505 509) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L451 ceAbstractionStarter]: At program point L503(line 503) the Hoare annotation is: true [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point L503-1(line 503) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 496 514) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 496 514) no Hoare annotation was computed. [2018-11-23 15:17:17,513 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 292 298) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 292 298) the Hoare annotation is: true [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 413 420) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0) (or .cse0 (not (= ~systemActive~0 1))))) [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 413 420) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 413 420) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 401) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 380 404) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 380 404) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2))) [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point L399(line 399) 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 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 15:17:17,514 INFO L448 ceAbstractionStarter]: For program point L399-1(lines 380 404) no Hoare annotation was computed. [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point L394(line 394) 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))) [2018-11-23 15:17:17,514 INFO L444 ceAbstractionStarter]: At program point L390(line 390) 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)|)) .cse1 (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 396) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L444 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 257 270) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 267) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 257 270) the Hoare annotation is: true [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 257 270) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 346 352) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 346 352) the Hoare annotation is: true [2018-11-23 15:17:17,515 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 531 596) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point L543(lines 543 547) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 531 596) no Hoare annotation was computed. [2018-11-23 15:17:17,515 INFO L444 ceAbstractionStarter]: At program point L589(lines 540 590) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-23 15:17:17,515 INFO L444 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-23 15:17:17,515 INFO L448 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L444 ceAbstractionStarter]: At program point L577-1(lines 571 584) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L542(lines 541 588) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L444 ceAbstractionStarter]: At program point L563(line 563) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 567) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L444 ceAbstractionStarter]: At program point L586(lines 541 588) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) .cse2 .cse1))) [2018-11-23 15:17:17,516 INFO L444 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~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)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L551(lines 551 557) no Hoare annotation was computed. [2018-11-23 15:17:17,516 INFO L448 ceAbstractionStarter]: For program point L551-1(lines 551 557) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 531 596) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 271 279) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 271 279) the Hoare annotation is: true [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 271 279) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 405 412) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 405 412) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 405 412) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 477 495) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point L486(lines 486 490) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 477 495) the Hoare annotation is: true [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 477 495) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L451 ceAbstractionStarter]: At program point L484(line 484) the Hoare annotation is: true [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L448 ceAbstractionStarter]: For program point L484-1(line 484) no Hoare annotation was computed. [2018-11-23 15:17:17,517 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 248 256) the Hoare annotation is: true [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 248 256) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 248 256) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point L208-1(lines 204 215) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 204 215) the Hoare annotation is: true [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 204 215) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 322 345) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) .cse1) (or .cse2 (not (= ~systemActive~0 0)) .cse1) (or .cse2 (< |old(~waterLevel~0)| 1) .cse0 .cse1))) [2018-11-23 15:17:17,518 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse5 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse3))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse0 .cse1)) (let ((.cse2 (+ ~waterLevel~0 1))) (and (<= .cse2 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse2) .cse3))) (or (or (or .cse4 .cse1) .cse0) .cse5) (or .cse4 (not (= ~systemActive~0 0))) (or .cse4 .cse1 .cse5 (not (= |old(~waterLevel~0)| 1)))))) [2018-11-23 15:17:17,518 INFO L444 ceAbstractionStarter]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (let ((.cse0 (+ ~waterLevel~0 1))) (and (<= .cse0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse0))) (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse2 (not (= ~systemActive~0 0)) .cse3) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse4) .cse2 (< |old(~waterLevel~0)| 1) .cse1 .cse3)))) [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 322 345) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L444 ceAbstractionStarter]: At program point L328(line 328) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 322 345) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point L326(lines 325 344) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2018-11-23 15:17:17,518 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-23 15:17:17,518 INFO L451 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L451 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L451 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L451 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 180 191) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 180 191) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point L184-1(lines 180 191) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 15:17:17,519 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 354 378) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 354 378) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L444 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 15:17:17,519 INFO L448 ceAbstractionStarter]: For program point L373-1(lines 354 378) no Hoare annotation was computed. [2018-11-23 15:17:17,519 INFO L444 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) (< ~waterLevel~0 2)) (or .cse1 .cse0 .cse2 (not (= ~waterLevel~0 1))))) [2018-11-23 15:17:17,520 INFO L444 ceAbstractionStarter]: At program point L364(line 364) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (or .cse0 .cse1) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point L362(lines 362 370) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L444 ceAbstractionStarter]: At program point L360(line 360) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point L360-1(line 360) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point L358(lines 358 375) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 192 203) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 192 203) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse2) (or .cse2 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0))))) [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point L196-1(lines 192 203) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 598 605) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 598 605) the Hoare annotation is: true [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2018-11-23 15:17:17,520 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 598 605) no Hoare annotation was computed. [2018-11-23 15:17:17,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:17:17 BoogieIcfgContainer [2018-11-23 15:17:17,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:17:17,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:17:17,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:17:17,530 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:17:17,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:16:55" (3/4) ... [2018-11-23 15:17:17,533 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 15:17:17,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 15:17:17,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 15:17:17,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 15:17:17,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 15:17:17,540 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 15:17:17,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 15:17:17,541 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 15:17:17,546 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-23 15:17:17,547 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 15:17:17,547 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 15:17:17,548 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 15:17:17,548 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 15:17:17,548 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:17:17,549 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:17:17,573 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) [2018-11-23 15:17:17,574 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-23 15:17:17,606 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc055e31-6f30-4391-a046-ff42d8c902bb/bin-2019/utaipan/witness.graphml [2018-11-23 15:17:17,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:17:17,606 INFO L168 Benchmark]: Toolchain (without parser) took 23270.22 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 956.4 MB in the beginning and 1.3 GB in the end (delta: -342.3 MB). Peak memory consumption was 892.9 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,607 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:17:17,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:17:17,608 INFO L168 Benchmark]: Boogie Preprocessor took 23.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,608 INFO L168 Benchmark]: RCFGBuilder took 443.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,608 INFO L168 Benchmark]: TraceAbstraction took 22342.95 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -219.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,608 INFO L168 Benchmark]: Witness Printer took 76.02 ms. Allocated memory is still 2.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 50.0 kB). Peak memory consumption was 50.0 kB. Max. memory is 11.5 GB. [2018-11-23 15:17:17,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 443.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22342.95 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -219.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 76.02 ms. Allocated memory is still 2.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 50.0 kB). Peak memory consumption was 50.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: 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: 540]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 147 locations, 1 error locations. SAFE Result, 22.2s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 9.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 2549 SDtfs, 3353 SDslu, 7049 SDs, 0 SdLazy, 7224 SolverSat, 1668 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2816 GetRequests, 2567 SyntacticMatches, 35 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1619occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.3s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9980363831417235 AbsIntWeakeningRatio, 0.9172932330827067 AbsIntAvgWeakeningVarsNumRemoved, 43.432330827067666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 871 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 4777 PreInvPairs, 4880 NumberOfFragments, 1297 HoareAnnotationTreeSize, 4777 FomulaSimplifications, 20389 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 61 FomulaSimplificationsInter, 18211 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2935 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 4122 ConstructedInterpolants, 0 QuantifiedInterpolants, 900563 SizeOfPredicates, 28 NumberOfNonLiveVariables, 6133 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 1774/1920 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...