./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_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_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 5a35b365de7365eb1088366c2b8165f4a523d787 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:34:06,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:34:06,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:34:06,820 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:34:06,820 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:34:06,821 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:34:06,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:34:06,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:34:06,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:34:06,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:34:06,825 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:34:06,825 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:34:06,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:34:06,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:34:06,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:34:06,827 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:34:06,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:34:06,829 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:34:06,830 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:34:06,831 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:34:06,832 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:34:06,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:34:06,834 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:34:06,835 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:34:06,835 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:34:06,835 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:34:06,836 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:34:06,837 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:34:06,837 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:34:06,838 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:34:06,838 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:34:06,839 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:34:06,839 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:34:06,839 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:34:06,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:34:06,840 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:34:06,840 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 00:34:06,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:34:06,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:34:06,851 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:34:06,851 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:34:06,851 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:34:06,852 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 00:34:06,852 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:34:06,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:34:06,853 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:34:06,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:34:06,854 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:34:06,854 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:34:06,855 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:34:06,855 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 00:34:06,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:34:06,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:34:06,855 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:34:06,855 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_1981e717-228c-4373-82ff-2cce46b7fb92/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 -> 5a35b365de7365eb1088366c2b8165f4a523d787 [2018-11-23 00:34:06,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:34:06,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:34:06,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:34:06,887 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:34:06,887 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:34:06,888 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-23 00:34:06,923 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/data/552becfd0/2e62b3c423b741b3a107711473deece7/FLAGa5782cf28 [2018-11-23 00:34:07,349 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:34:07,349 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/sv-benchmarks/c/product-lines/minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-23 00:34:07,355 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/data/552becfd0/2e62b3c423b741b3a107711473deece7/FLAGa5782cf28 [2018-11-23 00:34:07,364 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/data/552becfd0/2e62b3c423b741b3a107711473deece7 [2018-11-23 00:34:07,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:34:07,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:34:07,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:34:07,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:34:07,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:34:07,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44db1cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07, skipping insertion in model container [2018-11-23 00:34:07,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:34:07,409 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:34:07,608 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:34:07,617 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:34:07,730 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:34:07,750 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:34:07,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07 WrapperNode [2018-11-23 00:34:07,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:34:07,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:34:07,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:34:07,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:34:07,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:34:07,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:34:07,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:34:07,778 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:34:07,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... [2018-11-23 00:34:07,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:34:07,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:34:07,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:34:07,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:34:07,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 00:34:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 00:34:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 00:34:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 00:34:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:34:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:34:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-23 00:34:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-23 00:34:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 00:34:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 00:34:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:34:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 00:34:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 00:34:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 00:34:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 00:34:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 00:34:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 00:34:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 00:34:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 00:34:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 00:34:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 00:34:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 00:34:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 00:34:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 00:34:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 00:34:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 00:34:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 00:34:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 00:34:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 00:34:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 00:34:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 00:34:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 00:34:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 00:34:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 00:34:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 00:34:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 00:34:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 00:34:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 00:34:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 00:34:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 00:34:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 00:34:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 00:34:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 00:34:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 00:34:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 00:34:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 00:34:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 00:34:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 00:34:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 00:34:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 00:34:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 00:34:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 00:34:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 00:34:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 00:34:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 00:34:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 00:34:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:34:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:34:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 00:34:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 00:34:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 00:34:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 00:34:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:34:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:34:08,326 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:34:08,326 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 00:34:08,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:34:08 BoogieIcfgContainer [2018-11-23 00:34:08,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:34:08,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:34:08,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:34:08,329 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:34:08,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:34:07" (1/3) ... [2018-11-23 00:34:08,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f25b702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:34:08, skipping insertion in model container [2018-11-23 00:34:08,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:34:07" (2/3) ... [2018-11-23 00:34:08,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f25b702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:34:08, skipping insertion in model container [2018-11-23 00:34:08,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:34:08" (3/3) ... [2018-11-23 00:34:08,332 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59_true-unreach-call_false-termination.cil.c [2018-11-23 00:34:08,338 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:34:08,343 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:34:08,353 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:34:08,380 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:34:08,380 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:34:08,381 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:34:08,381 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:34:08,381 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:34:08,381 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:34:08,381 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:34:08,381 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:34:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-11-23 00:34:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 00:34:08,406 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:08,406 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 00:34:08,408 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:08,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:08,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1577511589, now seen corresponding path program 1 times [2018-11-23 00:34:08,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:08,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:08,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:08,605 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 00:34:08,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:34:08,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:34:08,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:08,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 00:34:08,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 00:34:08,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:34:08,624 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-11-23 00:34:08,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:08,650 INFO L93 Difference]: Finished difference Result 298 states and 365 transitions. [2018-11-23 00:34:08,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 00:34:08,651 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 00:34:08,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:08,660 INFO L225 Difference]: With dead ends: 298 [2018-11-23 00:34:08,661 INFO L226 Difference]: Without dead ends: 149 [2018-11-23 00:34:08,664 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 00:34:08,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-23 00:34:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-23 00:34:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-23 00:34:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2018-11-23 00:34:08,704 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 46 [2018-11-23 00:34:08,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:08,704 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2018-11-23 00:34:08,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 00:34:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2018-11-23 00:34:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 00:34:08,706 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:08,707 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 00:34:08,707 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:08,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:08,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1559707718, now seen corresponding path program 1 times [2018-11-23 00:34:08,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:08,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:08,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,708 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:08,778 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 00:34:08,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:34:08,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 00:34:08,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:08,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:34:08,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:34:08,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:34:08,781 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 3 states. [2018-11-23 00:34:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:08,802 INFO L93 Difference]: Finished difference Result 241 states and 279 transitions. [2018-11-23 00:34:08,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:34:08,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 00:34:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:08,804 INFO L225 Difference]: With dead ends: 241 [2018-11-23 00:34:08,804 INFO L226 Difference]: Without dead ends: 140 [2018-11-23 00:34:08,805 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 00:34:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-23 00:34:08,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-11-23 00:34:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-23 00:34:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2018-11-23 00:34:08,817 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 47 [2018-11-23 00:34:08,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:08,818 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2018-11-23 00:34:08,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:34:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2018-11-23 00:34:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 00:34:08,819 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:08,819 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 00:34:08,820 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:08,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:08,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1919773205, now seen corresponding path program 1 times [2018-11-23 00:34:08,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:08,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:08,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:08,821 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:08,918 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 00:34:08,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:34:08,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:34:08,919 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:08,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:34:08,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:34:08,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:34:08,919 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 7 states. [2018-11-23 00:34:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:09,213 INFO L93 Difference]: Finished difference Result 422 states and 504 transitions. [2018-11-23 00:34:09,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:34:09,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-23 00:34:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:09,216 INFO L225 Difference]: With dead ends: 422 [2018-11-23 00:34:09,216 INFO L226 Difference]: Without dead ends: 306 [2018-11-23 00:34:09,217 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 00:34:09,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-11-23 00:34:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2018-11-23 00:34:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-23 00:34:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 356 transitions. [2018-11-23 00:34:09,246 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 356 transitions. Word has length 51 [2018-11-23 00:34:09,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:09,247 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 356 transitions. [2018-11-23 00:34:09,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:34:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 356 transitions. [2018-11-23 00:34:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 00:34:09,249 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:09,249 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 00:34:09,249 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:09,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:09,250 INFO L82 PathProgramCache]: Analyzing trace with hash 903237574, now seen corresponding path program 1 times [2018-11-23 00:34:09,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:09,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:09,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:09,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:09,251 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:09,357 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 00:34:09,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:34:09,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 00:34:09,358 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:09,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 00:34:09,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 00:34:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 00:34:09,359 INFO L87 Difference]: Start difference. First operand 298 states and 356 transitions. Second operand 10 states. [2018-11-23 00:34:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:09,759 INFO L93 Difference]: Finished difference Result 1072 states and 1372 transitions. [2018-11-23 00:34:09,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 00:34:09,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-23 00:34:09,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:09,765 INFO L225 Difference]: With dead ends: 1072 [2018-11-23 00:34:09,765 INFO L226 Difference]: Without dead ends: 798 [2018-11-23 00:34:09,767 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 00:34:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2018-11-23 00:34:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 786. [2018-11-23 00:34:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2018-11-23 00:34:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 972 transitions. [2018-11-23 00:34:09,821 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 972 transitions. Word has length 57 [2018-11-23 00:34:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:09,821 INFO L480 AbstractCegarLoop]: Abstraction has 786 states and 972 transitions. [2018-11-23 00:34:09,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 00:34:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 972 transitions. [2018-11-23 00:34:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 00:34:09,825 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:09,825 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 00:34:09,829 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:09,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:09,829 INFO L82 PathProgramCache]: Analyzing trace with hash -588764660, now seen corresponding path program 1 times [2018-11-23 00:34:09,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:09,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:09,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:09,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:09,831 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:09,900 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 00:34:09,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:34:09,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:34:09,901 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:09,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:34:09,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:34:09,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:34:09,902 INFO L87 Difference]: Start difference. First operand 786 states and 972 transitions. Second operand 4 states. [2018-11-23 00:34:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:10,116 INFO L93 Difference]: Finished difference Result 1938 states and 2607 transitions. [2018-11-23 00:34:10,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 00:34:10,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-23 00:34:10,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:10,124 INFO L225 Difference]: With dead ends: 1938 [2018-11-23 00:34:10,124 INFO L226 Difference]: Without dead ends: 1176 [2018-11-23 00:34:10,127 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 00:34:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2018-11-23 00:34:10,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1041. [2018-11-23 00:34:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2018-11-23 00:34:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1298 transitions. [2018-11-23 00:34:10,174 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1298 transitions. Word has length 61 [2018-11-23 00:34:10,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:10,174 INFO L480 AbstractCegarLoop]: Abstraction has 1041 states and 1298 transitions. [2018-11-23 00:34:10,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:34:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1298 transitions. [2018-11-23 00:34:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 00:34:10,176 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:10,176 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 00:34:10,177 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:10,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:10,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1174479952, now seen corresponding path program 1 times [2018-11-23 00:34:10,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:10,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:10,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:10,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:10,178 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:10,254 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 00:34:10,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:10,254 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:10,255 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-11-23 00:34:10,256 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [130], [132], [135], [150], [151], [174], [175], [216], [223], [226], [234], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [287], [299], [300], [303], [304], [305], [306], [323], [324], [325], [326], [327] [2018-11-23 00:34:10,279 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:10,279 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:10,749 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:34:10,750 INFO L272 AbstractInterpreter]: Visited 65 different actions 139 times. Merged at 13 different actions 19 times. Never widened. Performed 4981 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4981 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 00:34:10,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:10,765 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:34:10,974 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 98.37% of their original sizes. [2018-11-23 00:34:10,975 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:34:11,026 INFO L415 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2018-11-23 00:34:11,026 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:34:11,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:34:11,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-11-23 00:34:11,027 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:11,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 00:34:11,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 00:34:11,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:34:11,028 INFO L87 Difference]: Start difference. First operand 1041 states and 1298 transitions. Second operand 11 states. [2018-11-23 00:34:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:12,349 INFO L93 Difference]: Finished difference Result 1429 states and 1813 transitions. [2018-11-23 00:34:12,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-23 00:34:12,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2018-11-23 00:34:12,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:12,351 INFO L225 Difference]: With dead ends: 1429 [2018-11-23 00:34:12,351 INFO L226 Difference]: Without dead ends: 642 [2018-11-23 00:34:12,353 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-11-23 00:34:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-11-23 00:34:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 608. [2018-11-23 00:34:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-11-23 00:34:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 737 transitions. [2018-11-23 00:34:12,394 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 737 transitions. Word has length 88 [2018-11-23 00:34:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:12,394 INFO L480 AbstractCegarLoop]: Abstraction has 608 states and 737 transitions. [2018-11-23 00:34:12,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 00:34:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 737 transitions. [2018-11-23 00:34:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-23 00:34:12,398 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:12,398 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 00:34:12,398 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:12,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:12,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1155357501, now seen corresponding path program 1 times [2018-11-23 00:34:12,399 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:12,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:12,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:12,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:12,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-11-23 00:34:12,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:12,491 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:12,491 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-11-23 00:34:12,491 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [62], [64], [65], [68], [71], [73], [74], [89], [92], [94], [103], [107], [111], [114], [119], [125], [127], [130], [146], [147], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [287], [289], [290], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332] [2018-11-23 00:34:12,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:12,495 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:12,633 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:34:12,633 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Performed 2048 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2048 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 00:34:12,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:12,635 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:34:12,799 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.59% of their original sizes. [2018-11-23 00:34:12,799 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:34:12,829 INFO L415 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-11-23 00:34:12,829 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:34:12,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:34:12,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-23 00:34:12,830 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:12,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 00:34:12,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 00:34:12,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:34:12,831 INFO L87 Difference]: Start difference. First operand 608 states and 737 transitions. Second operand 9 states. [2018-11-23 00:34:13,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:13,945 INFO L93 Difference]: Finished difference Result 1401 states and 1743 transitions. [2018-11-23 00:34:13,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:34:13,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2018-11-23 00:34:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:13,948 INFO L225 Difference]: With dead ends: 1401 [2018-11-23 00:34:13,948 INFO L226 Difference]: Without dead ends: 817 [2018-11-23 00:34:13,949 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-23 00:34:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2018-11-23 00:34:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 789. [2018-11-23 00:34:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2018-11-23 00:34:13,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 950 transitions. [2018-11-23 00:34:13,988 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 950 transitions. Word has length 172 [2018-11-23 00:34:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:13,989 INFO L480 AbstractCegarLoop]: Abstraction has 789 states and 950 transitions. [2018-11-23 00:34:13,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 00:34:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 950 transitions. [2018-11-23 00:34:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-23 00:34:13,991 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:13,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:34:13,992 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:13,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash -2052698540, now seen corresponding path program 1 times [2018-11-23 00:34:13,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:13,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:13,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:13,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:13,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:14,050 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 00:34:14,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:14,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:14,050 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-11-23 00:34:14,051 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [122], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [180], [182], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [301], [302], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:14,054 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:14,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:14,338 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:34:14,338 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 3 different actions 3 times. Never widened. Performed 4650 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 00:34:14,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:14,340 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:34:14,545 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.61% of their original sizes. [2018-11-23 00:34:14,545 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:34:14,654 INFO L415 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-11-23 00:34:14,654 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:34:14,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:34:14,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-23 00:34:14,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:14,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 00:34:14,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 00:34:14,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-11-23 00:34:14,655 INFO L87 Difference]: Start difference. First operand 789 states and 950 transitions. Second operand 18 states. [2018-11-23 00:34:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:16,236 INFO L93 Difference]: Finished difference Result 1468 states and 1789 transitions. [2018-11-23 00:34:16,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 00:34:16,236 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 151 [2018-11-23 00:34:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:16,239 INFO L225 Difference]: With dead ends: 1468 [2018-11-23 00:34:16,239 INFO L226 Difference]: Without dead ends: 703 [2018-11-23 00:34:16,241 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 00:34:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2018-11-23 00:34:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 699. [2018-11-23 00:34:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-11-23 00:34:16,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 826 transitions. [2018-11-23 00:34:16,273 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 826 transitions. Word has length 151 [2018-11-23 00:34:16,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:16,273 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 826 transitions. [2018-11-23 00:34:16,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 00:34:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 826 transitions. [2018-11-23 00:34:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-23 00:34:16,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:16,276 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:16,276 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:16,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:16,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1664956000, now seen corresponding path program 1 times [2018-11-23 00:34:16,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:16,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:16,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:16,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:16,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 00:34:16,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:16,340 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:16,340 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 160 with the following transitions: [2018-11-23 00:34:16,340 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [119], [122], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [180], [182], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:16,342 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:16,343 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:16,607 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:34:16,607 INFO L272 AbstractInterpreter]: Visited 58 different actions 77 times. Merged at 3 different actions 3 times. Never widened. Performed 4700 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4700 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 00:34:16,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:16,608 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:34:16,806 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 96.64% of their original sizes. [2018-11-23 00:34:16,806 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:34:16,861 INFO L415 sIntCurrentIteration]: We unified 158 AI predicates to 158 [2018-11-23 00:34:16,862 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:34:16,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:34:16,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-11-23 00:34:16,862 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:16,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 00:34:16,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 00:34:16,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-11-23 00:34:16,862 INFO L87 Difference]: Start difference. First operand 699 states and 826 transitions. Second operand 14 states. [2018-11-23 00:34:18,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:18,781 INFO L93 Difference]: Finished difference Result 1549 states and 1935 transitions. [2018-11-23 00:34:18,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 00:34:18,781 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 159 [2018-11-23 00:34:18,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:18,785 INFO L225 Difference]: With dead ends: 1549 [2018-11-23 00:34:18,785 INFO L226 Difference]: Without dead ends: 1152 [2018-11-23 00:34:18,787 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-23 00:34:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2018-11-23 00:34:18,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1100. [2018-11-23 00:34:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1100 states. [2018-11-23 00:34:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1289 transitions. [2018-11-23 00:34:18,851 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1289 transitions. Word has length 159 [2018-11-23 00:34:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:18,852 INFO L480 AbstractCegarLoop]: Abstraction has 1100 states and 1289 transitions. [2018-11-23 00:34:18,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 00:34:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1289 transitions. [2018-11-23 00:34:18,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-23 00:34:18,854 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:18,855 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:18,855 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:18,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:18,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1409788281, now seen corresponding path program 1 times [2018-11-23 00:34:18,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:18,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:18,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:18,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:18,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:18,919 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 00:34:18,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:18,920 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:18,920 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-23 00:34:18,920 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [122], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [172], [173], [174], [175], [180], [182], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:18,922 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:18,922 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:19,242 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 00:34:19,242 INFO L272 AbstractInterpreter]: Visited 68 different actions 122 times. Merged at 7 different actions 9 times. Never widened. Performed 5949 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5949 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 132 variables. [2018-11-23 00:34:19,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:19,248 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 00:34:19,343 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 96.91% of their original sizes. [2018-11-23 00:34:19,344 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 00:34:19,439 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-11-23 00:34:19,439 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 00:34:19,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:34:19,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [5] total 22 [2018-11-23 00:34:19,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:19,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 00:34:19,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 00:34:19,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 00:34:19,440 INFO L87 Difference]: Start difference. First operand 1100 states and 1289 transitions. Second operand 19 states. [2018-11-23 00:34:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:22,914 INFO L93 Difference]: Finished difference Result 2482 states and 3039 transitions. [2018-11-23 00:34:22,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-23 00:34:22,914 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 155 [2018-11-23 00:34:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:22,919 INFO L225 Difference]: With dead ends: 2482 [2018-11-23 00:34:22,919 INFO L226 Difference]: Without dead ends: 1573 [2018-11-23 00:34:22,922 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=337, Invalid=1469, Unknown=0, NotChecked=0, Total=1806 [2018-11-23 00:34:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2018-11-23 00:34:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1526. [2018-11-23 00:34:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2018-11-23 00:34:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1793 transitions. [2018-11-23 00:34:23,011 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1793 transitions. Word has length 155 [2018-11-23 00:34:23,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:23,011 INFO L480 AbstractCegarLoop]: Abstraction has 1526 states and 1793 transitions. [2018-11-23 00:34:23,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 00:34:23,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1793 transitions. [2018-11-23 00:34:23,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-11-23 00:34:23,014 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:23,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:34:23,014 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:23,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:23,014 INFO L82 PathProgramCache]: Analyzing trace with hash -714019885, now seen corresponding path program 1 times [2018-11-23 00:34:23,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:23,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:23,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:23,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:23,015 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 00:34:23,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:23,126 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:23,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-11-23 00:34:23,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:23,128 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:23,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:23,865 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:23,866 INFO L272 AbstractInterpreter]: Visited 129 different actions 590 times. Merged at 15 different actions 42 times. Never widened. Performed 18649 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18649 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 00:34:23,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:23,873 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:23,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:23,873 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:23,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:23,879 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:23,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:24,141 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 00:34:24,141 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:24,498 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 00:34:24,523 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:34:24,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 00:34:24,523 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:34:24,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 00:34:24,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 00:34:24,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-23 00:34:24,524 INFO L87 Difference]: Start difference. First operand 1526 states and 1793 transitions. Second operand 14 states. [2018-11-23 00:34:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:25,807 INFO L93 Difference]: Finished difference Result 2423 states and 3153 transitions. [2018-11-23 00:34:25,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-23 00:34:25,808 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 151 [2018-11-23 00:34:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:25,813 INFO L225 Difference]: With dead ends: 2423 [2018-11-23 00:34:25,813 INFO L226 Difference]: Without dead ends: 1788 [2018-11-23 00:34:25,815 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 00:34:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2018-11-23 00:34:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1641. [2018-11-23 00:34:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1641 states. [2018-11-23 00:34:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 1919 transitions. [2018-11-23 00:34:25,875 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 1919 transitions. Word has length 151 [2018-11-23 00:34:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:25,876 INFO L480 AbstractCegarLoop]: Abstraction has 1641 states and 1919 transitions. [2018-11-23 00:34:25,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 00:34:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 1919 transitions. [2018-11-23 00:34:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-11-23 00:34:25,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:25,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:34:25,880 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:25,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:25,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1781892361, now seen corresponding path program 1 times [2018-11-23 00:34:25,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:25,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:25,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:25,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:25,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:25,980 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 00:34:25,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:25,980 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:25,980 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-11-23 00:34:25,981 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], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:25,982 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:25,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:26,657 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:26,657 INFO L272 AbstractInterpreter]: Visited 130 different actions 602 times. Merged at 18 different actions 51 times. Never widened. Performed 18939 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18939 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 00:34:26,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:26,661 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:26,661 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:26,661 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:26,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:26,671 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:26,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:26,856 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 00:34:26,856 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:27,088 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 00:34:27,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:34:27,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 00:34:27,117 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:27,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:34:27,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:34:27,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 00:34:27,118 INFO L87 Difference]: Start difference. First operand 1641 states and 1919 transitions. Second operand 6 states. [2018-11-23 00:34:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:27,199 INFO L93 Difference]: Finished difference Result 2255 states and 2722 transitions. [2018-11-23 00:34:27,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 00:34:27,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-11-23 00:34:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:27,203 INFO L225 Difference]: With dead ends: 2255 [2018-11-23 00:34:27,203 INFO L226 Difference]: Without dead ends: 1629 [2018-11-23 00:34:27,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 403 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 00:34:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2018-11-23 00:34:27,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2018-11-23 00:34:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2018-11-23 00:34:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 1896 transitions. [2018-11-23 00:34:27,262 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 1896 transitions. Word has length 204 [2018-11-23 00:34:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:27,262 INFO L480 AbstractCegarLoop]: Abstraction has 1629 states and 1896 transitions. [2018-11-23 00:34:27,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:34:27,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 1896 transitions. [2018-11-23 00:34:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-23 00:34:27,266 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:27,266 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:34:27,266 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:27,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:27,267 INFO L82 PathProgramCache]: Analyzing trace with hash 407559622, now seen corresponding path program 1 times [2018-11-23 00:34:27,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:27,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:27,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:27,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:27,268 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-23 00:34:27,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:27,363 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:27,363 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-23 00:34:27,363 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [122], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [174], [175], [180], [182], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:27,365 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:27,365 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:28,600 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:28,601 INFO L272 AbstractInterpreter]: Visited 136 different actions 1188 times. Merged at 27 different actions 217 times. Never widened. Performed 33374 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33374 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 31 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-23 00:34:28,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:28,605 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:28,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:28,605 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:28,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:28,611 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:28,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-23 00:34:28,816 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-23 00:34:29,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:34:29,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 00:34:29,504 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:29,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 00:34:29,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:34:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 00:34:29,505 INFO L87 Difference]: Start difference. First operand 1629 states and 1896 transitions. Second operand 8 states. [2018-11-23 00:34:29,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:29,695 INFO L93 Difference]: Finished difference Result 3093 states and 3722 transitions. [2018-11-23 00:34:29,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:34:29,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2018-11-23 00:34:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:29,706 INFO L225 Difference]: With dead ends: 3093 [2018-11-23 00:34:29,706 INFO L226 Difference]: Without dead ends: 2083 [2018-11-23 00:34:29,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 432 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 00:34:29,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2018-11-23 00:34:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2003. [2018-11-23 00:34:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2003 states. [2018-11-23 00:34:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2341 transitions. [2018-11-23 00:34:29,822 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2341 transitions. Word has length 225 [2018-11-23 00:34:29,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:29,823 INFO L480 AbstractCegarLoop]: Abstraction has 2003 states and 2341 transitions. [2018-11-23 00:34:29,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 00:34:29,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2341 transitions. [2018-11-23 00:34:29,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-23 00:34:29,828 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:29,828 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, 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 00:34:29,828 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:29,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:29,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1448762654, now seen corresponding path program 1 times [2018-11-23 00:34:29,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:29,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:29,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:29,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:29,829 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-23 00:34:29,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:29,930 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:29,931 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-11-23 00:34:29,931 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:29,932 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:29,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:30,702 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:30,702 INFO L272 AbstractInterpreter]: Visited 131 different actions 708 times. Merged at 25 different actions 128 times. Never widened. Performed 19010 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19010 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 00:34:30,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:30,705 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:30,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:30,705 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:30,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:30,711 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:30,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 75 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 00:34:30,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-23 00:34:31,111 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 00:34:31,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-23 00:34:31,112 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 00:34:31,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 00:34:31,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 00:34:31,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-23 00:34:31,113 INFO L87 Difference]: Start difference. First operand 2003 states and 2341 transitions. Second operand 12 states. [2018-11-23 00:34:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:31,479 INFO L93 Difference]: Finished difference Result 3430 states and 4110 transitions. [2018-11-23 00:34:31,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 00:34:31,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 221 [2018-11-23 00:34:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:31,484 INFO L225 Difference]: With dead ends: 3430 [2018-11-23 00:34:31,484 INFO L226 Difference]: Without dead ends: 1857 [2018-11-23 00:34:31,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 442 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 00:34:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2018-11-23 00:34:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1714. [2018-11-23 00:34:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2018-11-23 00:34:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 1930 transitions. [2018-11-23 00:34:31,540 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 1930 transitions. Word has length 221 [2018-11-23 00:34:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:31,540 INFO L480 AbstractCegarLoop]: Abstraction has 1714 states and 1930 transitions. [2018-11-23 00:34:31,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 00:34:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 1930 transitions. [2018-11-23 00:34:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-11-23 00:34:31,543 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:31,544 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, 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 00:34:31,544 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:31,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:31,544 INFO L82 PathProgramCache]: Analyzing trace with hash -489025161, now seen corresponding path program 1 times [2018-11-23 00:34:31,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:31,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:31,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:31,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:31,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:31,614 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 00:34:31,614 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:31,614 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:31,614 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-11-23 00:34:31,614 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], [64], [65], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [168], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:31,616 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:31,616 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:32,557 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:32,557 INFO L272 AbstractInterpreter]: Visited 137 different actions 819 times. Merged at 32 different actions 155 times. Never widened. Performed 26178 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26178 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-23 00:34:32,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:32,559 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:32,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:32,559 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:32,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:32,567 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:32,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-23 00:34:32,787 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-11-23 00:34:33,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:34:33,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 00:34:33,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:33,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:34:33,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:34:33,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:34:33,059 INFO L87 Difference]: Start difference. First operand 1714 states and 1930 transitions. Second operand 6 states. [2018-11-23 00:34:33,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:33,116 INFO L93 Difference]: Finished difference Result 2988 states and 3458 transitions. [2018-11-23 00:34:33,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 00:34:33,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 266 [2018-11-23 00:34:33,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:33,121 INFO L225 Difference]: With dead ends: 2988 [2018-11-23 00:34:33,121 INFO L226 Difference]: Without dead ends: 1776 [2018-11-23 00:34:33,123 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 529 SyntacticMatches, 4 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 00:34:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2018-11-23 00:34:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1754. [2018-11-23 00:34:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1754 states. [2018-11-23 00:34:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 1974 transitions. [2018-11-23 00:34:33,176 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 1974 transitions. Word has length 266 [2018-11-23 00:34:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:33,177 INFO L480 AbstractCegarLoop]: Abstraction has 1754 states and 1974 transitions. [2018-11-23 00:34:33,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:34:33,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 1974 transitions. [2018-11-23 00:34:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-11-23 00:34:33,180 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:34:33,180 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:34:33,180 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:34:33,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:33,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1899538869, now seen corresponding path program 1 times [2018-11-23 00:34:33,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:34:33,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:33,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:33,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:34:33,181 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:34:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-11-23 00:34:33,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:33,251 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 00:34:33,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-11-23 00:34:33,252 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], [64], [65], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [154], [159], [162], [163], [165], [170], [172], [173], [174], [175], [183], [184], [213], [216], [220], [226], [229], [233], [234], [238], [241], [243], [246], [253], [256], [259], [263], [264], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [286], [287], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [305], [306], [309], [310], [311], [312], [313], [314], [319], [320], [321], [322], [323], [324], [325], [326], [327], [329], [330], [331], [332], [335], [336] [2018-11-23 00:34:33,253 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 00:34:33,253 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 00:34:34,195 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 00:34:34,196 INFO L272 AbstractInterpreter]: Visited 136 different actions 783 times. Merged at 26 different actions 103 times. Never widened. Performed 28802 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28802 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 00:34:34,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:34:34,200 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 00:34:34,200 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:34:34,201 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/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 00:34:34,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:34:34,207 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 00:34:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:34:34,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:34:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-23 00:34:34,341 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 00:34:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-11-23 00:34:34,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:34:34,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 00:34:34,609 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:34:34,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 00:34:34,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 00:34:34,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:34:34,610 INFO L87 Difference]: Start difference. First operand 1754 states and 1974 transitions. Second operand 5 states. [2018-11-23 00:34:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:34:34,659 INFO L93 Difference]: Finished difference Result 2176 states and 2460 transitions. [2018-11-23 00:34:34,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 00:34:34,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2018-11-23 00:34:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:34:34,660 INFO L225 Difference]: With dead ends: 2176 [2018-11-23 00:34:34,660 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:34:34,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:34:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:34:34,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:34:34,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:34:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:34:34,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 266 [2018-11-23 00:34:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:34:34,664 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:34:34,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 00:34:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:34:34,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:34:34,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:34:34,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:34,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 00:34:35,756 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 30 [2018-11-23 00:34:35,931 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 32 [2018-11-23 00:34:36,220 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 37 [2018-11-23 00:34:36,460 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 42 [2018-11-23 00:34:37,211 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 50 [2018-11-23 00:34:37,719 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-23 00:34:37,719 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-23 00:34:37,719 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-23 00:34:37,719 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-23 00:34:37,719 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L444 ceAbstractionStarter]: At program point L95(line 95) 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 00:34:37,720 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 81 105) the Hoare annotation is: true [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 99) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L444 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse0 (not (= ~systemActive~0 0)) (= ~waterLevel~0 0)) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1))) [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 102) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 81 105) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L451 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: true [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 81 105) no Hoare annotation was computed. [2018-11-23 00:34:37,720 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 489 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 489 511) no Hoare annotation was computed. [2018-11-23 00:34:37,721 INFO L444 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L444 ceAbstractionStarter]: At program point L501-1(line 501) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 506) no Hoare annotation was computed. [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 499 506) no Hoare annotation was computed. [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-23 00:34:37,721 INFO L444 ceAbstractionStarter]: At program point L496(line 496) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L444 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L444 ceAbstractionStarter]: At program point L495-1(line 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 489 511) no Hoare annotation was computed. [2018-11-23 00:34:37,721 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 401 415) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L444 ceAbstractionStarter]: At program point L407(line 407) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (or (= |old(~systemActive~0)| 0) (not (= ~waterLevel~0 1))) (and (not (= ~systemActive~0 0)) .cse0)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))))) [2018-11-23 00:34:37,722 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 401 415) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~systemActive~0)| 0)) (.cse2 (= ~systemActive~0 0)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not .cse0) .cse1 .cse2) (or .cse1 .cse3) (or (or .cse0 (not (= ~waterLevel~0 1))) (and (not .cse2) .cse3)) (or (and (= ~systemActive~0 1) .cse3) (not (= |old(~systemActive~0)| 1))))) [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point L405(lines 405 411) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 401 415) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 318 326) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 318 326) the Hoare annotation is: true [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 318 326) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 382 400) the Hoare annotation is: true [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 395) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 382 400) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L451 ceAbstractionStarter]: At program point L389(line 389) the Hoare annotation is: true [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 391 395) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point L389-1(line 389) no Hoare annotation was computed. [2018-11-23 00:34:37,722 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 382 400) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-23 00:34:37,723 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 479 488) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 479 488) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 479 488) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 307 317) the Hoare annotation is: true [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 307 317) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L451 ceAbstractionStarter]: At program point L312(line 312) the Hoare annotation is: true [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point L312-1(line 312) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 307 317) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 299 306) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~systemActive~0 1))) (or (or (= ~systemActive~0 0) (not (= ~waterLevel~0 1))) .cse0))) [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 299 306) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 299 306) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 592 605) no Hoare annotation was computed. [2018-11-23 00:34:37,723 INFO L448 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 592 605) the Hoare annotation is: true [2018-11-23 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 592 605) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 264) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L444 ceAbstractionStarter]: At program point L254(line 254) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-23 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point L254-1(line 254) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 269) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 248 272) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 248 272) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse2 .cse1))) [2018-11-23 00:34:37,724 INFO L444 ceAbstractionStarter]: At program point L267(line 267) 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 00:34:37,724 INFO L448 ceAbstractionStarter]: For program point L267-1(lines 248 272) no Hoare annotation was computed. [2018-11-23 00:34:37,724 INFO L444 ceAbstractionStarter]: At program point L262(line 262) 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 00:34:37,724 INFO L444 ceAbstractionStarter]: At program point L258(line 258) 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 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 214 220) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 214 220) the Hoare annotation is: true [2018-11-23 00:34:37,725 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 112 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 128) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 112 177) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L444 ceAbstractionStarter]: At program point L170(lines 121 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 00:34:37,725 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 1) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 164) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L444 ceAbstractionStarter]: At program point L158-1(lines 152 165) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point L123(lines 122 169) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 165) no Hoare annotation was computed. [2018-11-23 00:34:37,725 INFO L444 ceAbstractionStarter]: At program point L144(line 144) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse1 .cse2) (and (= ~systemActive~0 0) .cse0 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point L142(lines 142 148) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L444 ceAbstractionStarter]: At program point L167(lines 122 169) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= ~systemActive~0 0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~waterLevel~0) .cse0 .cse2 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1))) [2018-11-23 00:34:37,726 INFO L444 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 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)|)) (and (<= 1 ~waterLevel~0) .cse2 .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point L132(lines 132 138) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 112 177) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 273 280) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2)) [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 273 280) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 273 280) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 606 614) no Hoare annotation was computed. [2018-11-23 00:34:37,726 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 606 614) the Hoare annotation is: true [2018-11-23 00:34:37,726 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 606 614) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:34:37,727 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 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point L289(lines 289 295) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L444 ceAbstractionStarter]: At program point L287(line 287) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point L287-1(line 287) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 282 298) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 282 298) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 00:34:37,727 INFO L444 ceAbstractionStarter]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point L293-1(lines 282 298) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 363 381) no Hoare annotation was computed. [2018-11-23 00:34:37,727 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 363 381) the Hoare annotation is: true [2018-11-23 00:34:37,727 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 363 381) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 376) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L451 ceAbstractionStarter]: At program point L370(line 370) the Hoare annotation is: true [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 583 591) the Hoare annotation is: true [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 583 591) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 583 591) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 539 550) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 539 550) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 1 ~pumpRunning~0))) (.cse8 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse1 (not (= ~waterLevel~0 2))) (.cse0 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse6 (not (= 0 ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 1))) (.cse7 (not (= ~waterLevel~0 1)))) (and (or (or .cse0 .cse1) .cse2 .cse3 (or .cse4 .cse5)) (or .cse6 .cse4 .cse3 .cse7 .cse8) (or (< |old(~methaneLevelCritical~0)| 1) (<= 1 ~methaneLevelCritical~0) .cse6 (< ~waterLevel~0 1) .cse3) (or .cse4 (or .cse6 .cse3 .cse8) .cse1) (or .cse4 .cse2 .cse3 .cse8 .cse1) (or .cse5 (and (or .cse0 .cse6 .cse3 .cse1) (or .cse0 .cse6 .cse3 .cse7))))) [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 539 550) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 551 559) the Hoare annotation is: true [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 551 559) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 551 559) no Hoare annotation was computed. [2018-11-23 00:34:37,728 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2018-11-23 00:34:37,729 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2018-11-23 00:34:37,729 INFO L451 ceAbstractionStarter]: At program point L443(lines 418 447) the Hoare annotation is: true [2018-11-23 00:34:37,729 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-23 00:34:37,729 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 436) no Hoare annotation was computed. [2018-11-23 00:34:37,729 INFO L451 ceAbstractionStarter]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2018-11-23 00:34:37,729 INFO L448 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2018-11-23 00:34:37,729 INFO L451 ceAbstractionStarter]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2018-11-23 00:34:37,729 INFO L451 ceAbstractionStarter]: At program point L424(line 424) the Hoare annotation is: true [2018-11-23 00:34:37,729 INFO L448 ceAbstractionStarter]: For program point L424-1(line 424) no Hoare annotation was computed. [2018-11-23 00:34:37,729 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 190 213) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (.cse4 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 (< |old(~waterLevel~0)| 1) .cse4) (or .cse3 (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse4))) (or .cse0 .cse1 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)) (or .cse0 .cse1 (= ~waterLevel~0 1) (not (= |old(~waterLevel~0)| 1)))))) [2018-11-23 00:34:37,729 INFO L444 ceAbstractionStarter]: At program point L203(line 203) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse2 (< |old(~waterLevel~0)| 1) .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0)) (or .cse2 (not (= ~systemActive~0 0))))) [2018-11-23 00:34:37,729 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 190 213) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L444 ceAbstractionStarter]: At program point L201(lines 201 207) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 0)))) (and (or .cse0 .cse1 .cse2) (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3) (< |old(~waterLevel~0)| 1) .cse4 (and .cse3 .cse2))) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (= ~pumpRunning~0 0)) (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse5 .cse4))) (or .cse2 (or (< ~methaneLevelCritical~0 1) (or .cse0 .cse5 .cse4))) (or .cse0 .cse1 (not (= ~waterLevel~0 0)) (= |old(~waterLevel~0)| 0)) (or .cse0 .cse1 (= ~waterLevel~0 1) (not (= |old(~waterLevel~0)| 1))))) [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 190 213) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L444 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0))) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse0 (< |old(~waterLevel~0)| 1) .cse1))) [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point L194(lines 193 212) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 515 526) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (not (= 1 ~pumpRunning~0))) [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 515 526) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 515 526) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 472 478) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 472 478) the Hoare annotation is: true [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:34:37,730 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 00:34:37,730 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:34:37,730 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 222 246) 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 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 222 246) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point L241(line 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point L241-1(lines 222 246) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point L236(line 236) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point L230(lines 230 238) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point L228(line 228) 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 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point L228-1(line 228) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point L226(lines 226 243) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 527 538) no Hoare annotation was computed. [2018-11-23 00:34:37,731 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 527 538) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0))) (or .cse0 (< |old(~waterLevel~0)| 1) (or .cse2 .cse1)) (or .cse2 (not (= ~systemActive~0 0)) (= ~waterLevel~0 1) (not (= |old(~waterLevel~0)| 1))))) [2018-11-23 00:34:37,731 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 527 538) no Hoare annotation was computed. [2018-11-23 00:34:37,732 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 616 623) no Hoare annotation was computed. [2018-11-23 00:34:37,732 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 616 623) the Hoare annotation is: true [2018-11-23 00:34:37,732 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 620) no Hoare annotation was computed. [2018-11-23 00:34:37,732 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 616 623) no Hoare annotation was computed. [2018-11-23 00:34:37,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:34:37 BoogieIcfgContainer [2018-11-23 00:34:37,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:34:37,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:34:37,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:34:37,742 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:34:37,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:34:08" (3/4) ... [2018-11-23 00:34:37,745 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-23 00:34:37,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 00:34:37,751 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 00:34:37,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 00:34:37,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 00:34:37,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 00:34:37,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-23 00:34:37,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 00:34:37,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 00:34:37,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 00:34:37,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 00:34:37,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:34:37,761 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:34:37,785 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0) [2018-11-23 00:34:37,785 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 00:34:37,820 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1981e717-228c-4373-82ff-2cce46b7fb92/bin-2019/utaipan/witness.graphml [2018-11-23 00:34:37,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:34:37,821 INFO L168 Benchmark]: Toolchain (without parser) took 30455.55 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.5 GB). Free memory was 951.1 MB in the beginning and 954.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-23 00:34:37,822 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:34:37,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-23 00:34:37,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.76 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 00:34:37,822 INFO L168 Benchmark]: Boogie Preprocessor took 33.93 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:34:37,822 INFO L168 Benchmark]: RCFGBuilder took 514.23 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2018-11-23 00:34:37,823 INFO L168 Benchmark]: TraceAbstraction took 29414.24 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 118.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-23 00:34:37,823 INFO L168 Benchmark]: Witness Printer took 78.31 ms. Allocated memory is still 2.6 GB. Free memory is still 954.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:34:37,824 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.76 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 33.93 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 514.23 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29414.24 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 118.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 78.31 ms. Allocated memory is still 2.6 GB. Free memory is still 954.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 620]: 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: 121]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: (((((((systemActive == 0 && pumpRunning == 0) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((1 <= waterLevel && pumpRunning == 0) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0) - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 162 locations, 1 error locations. SAFE Result, 29.3s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 12.5s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3327 SDtfs, 4798 SDslu, 11344 SDs, 0 SdLazy, 6891 SolverSat, 1777 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 3582 GetRequests, 3313 SyntacticMatches, 29 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2003occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.8s AbstIntTime, 11 AbstIntIterations, 5 AbstIntStrong, 0.9981174417543275 AbsIntWeakeningRatio, 0.8736111111111111 AbsIntAvgWeakeningVarsNumRemoved, 45.1 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 712 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 67 LocationsWithAnnotation, 4874 PreInvPairs, 5023 NumberOfFragments, 1584 HoareAnnotationTreeSize, 4874 FomulaSimplifications, 28385 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 67 FomulaSimplificationsInter, 30531 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3653 NumberOfCodeBlocks, 3653 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4958 ConstructedInterpolants, 0 QuantifiedInterpolants, 1250708 SizeOfPredicates, 20 NumberOfNonLiveVariables, 6166 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 28 InterpolantComputations, 9 PerfectInterpolantSequences, 2480/2658 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...