./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 13:14:40,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:14:40,358 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:14:40,364 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:14:40,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:14:40,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:14:40,365 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:14:40,366 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:14:40,367 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:14:40,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:14:40,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:14:40,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:14:40,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:14:40,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:14:40,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:14:40,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:14:40,370 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:14:40,371 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:14:40,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:14:40,373 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:14:40,374 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:14:40,374 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:14:40,375 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:14:40,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:14:40,376 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:14:40,376 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:14:40,377 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:14:40,377 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:14:40,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:14:40,378 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:14:40,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:14:40,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:14:40,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:14:40,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:14:40,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:14:40,380 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:14:40,380 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 13:14:40,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:14:40,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:14:40,388 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 13:14:40,388 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 13:14:40,388 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 13:14:40,389 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:14:40,389 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:14:40,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:14:40,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:14:40,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:14:40,391 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:14:40,391 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 13:14:40,391 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:14:40,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:14:40,391 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 13:14:40,391 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_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 -> 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 [2018-12-09 13:14:40,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:14:40,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:14:40,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:14:40,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:14:40,422 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:14:40,422 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-12-09 13:14:40,467 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/data/4c50247d2/92b4f202f44d4c8ba959d5f568b592e7/FLAGbac43c23a [2018-12-09 13:14:40,892 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:14:40,893 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-12-09 13:14:40,899 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/data/4c50247d2/92b4f202f44d4c8ba959d5f568b592e7/FLAGbac43c23a [2018-12-09 13:14:40,907 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/data/4c50247d2/92b4f202f44d4c8ba959d5f568b592e7 [2018-12-09 13:14:40,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:14:40,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:14:40,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:14:40,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:14:40,913 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:14:40,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:40" (1/1) ... [2018-12-09 13:14:40,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:40, skipping insertion in model container [2018-12-09 13:14:40,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:40" (1/1) ... [2018-12-09 13:14:40,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:14:40,940 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:14:41,090 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:14:41,135 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:14:41,178 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:14:41,194 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:14:41,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41 WrapperNode [2018-12-09 13:14:41,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:14:41,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:14:41,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:14:41,195 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:14:41,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:14:41,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:14:41,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:14:41,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:14:41,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... [2018-12-09 13:14:41,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:14:41,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:14:41,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:14:41,239 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:14:41,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:14:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 13:14:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 13:14:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 13:14:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 13:14:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 13:14:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 13:14:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 13:14:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 13:14:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 13:14:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 13:14:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 13:14:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 13:14:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 13:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 13:14:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 13:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 13:14:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 13:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 13:14:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 13:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 13:14:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 13:14:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 13:14:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 13:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 13:14:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 13:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 13:14:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 13:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 13:14:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 13:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 13:14:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 13:14:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 13:14:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 13:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 13:14:41,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 13:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 13:14:41,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 13:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 13:14:41,284 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 13:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 13:14:41,284 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 13:14:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 13:14:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 13:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 13:14:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 13:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 13:14:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 13:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 13:14:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 13:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 13:14:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 13:14:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 13:14:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 13:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 13:14:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 13:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 13:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 13:14:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 13:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 13:14:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 13:14:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 13:14:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 13:14:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:14:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:14:41,641 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:14:41,641 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 13:14:41,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:41 BoogieIcfgContainer [2018-12-09 13:14:41,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:14:41,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:14:41,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:14:41,644 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:14:41,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:14:40" (1/3) ... [2018-12-09 13:14:41,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27612205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:14:41, skipping insertion in model container [2018-12-09 13:14:41,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:41" (2/3) ... [2018-12-09 13:14:41,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27612205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:14:41, skipping insertion in model container [2018-12-09 13:14:41,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:41" (3/3) ... [2018-12-09 13:14:41,646 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-12-09 13:14:41,652 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:14:41,657 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 13:14:41,666 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 13:14:41,685 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:14:41,685 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 13:14:41,685 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:14:41,685 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:14:41,685 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:14:41,685 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:14:41,686 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:14:41,686 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:14:41,698 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-12-09 13:14:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 13:14:41,703 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:41,704 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:41,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:41,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:41,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1486633802, now seen corresponding path program 1 times [2018-12-09 13:14:41,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:41,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:41,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:41,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:41,738 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:14:41,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:14:41,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 13:14:41,845 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:41,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 13:14:41,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 13:14:41,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 13:14:41,858 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2018-12-09 13:14:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:41,881 INFO L93 Difference]: Finished difference Result 300 states and 369 transitions. [2018-12-09 13:14:41,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 13:14:41,881 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 13:14:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:41,888 INFO L225 Difference]: With dead ends: 300 [2018-12-09 13:14:41,888 INFO L226 Difference]: Without dead ends: 150 [2018-12-09 13:14:41,891 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 13:14:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-12-09 13:14:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-12-09 13:14:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-12-09 13:14:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2018-12-09 13:14:41,922 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 46 [2018-12-09 13:14:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:41,922 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2018-12-09 13:14:41,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 13:14:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2018-12-09 13:14:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 13:14:41,924 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:41,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:41,924 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:41,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:41,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1530271189, now seen corresponding path program 1 times [2018-12-09 13:14:41,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:41,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:41,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:41,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:41,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:14:41,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:14:41,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:14:41,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:41,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:14:41,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:14:41,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:14:41,984 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 3 states. [2018-12-09 13:14:41,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:41,997 INFO L93 Difference]: Finished difference Result 245 states and 287 transitions. [2018-12-09 13:14:41,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:14:41,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 13:14:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:41,999 INFO L225 Difference]: With dead ends: 245 [2018-12-09 13:14:41,999 INFO L226 Difference]: Without dead ends: 141 [2018-12-09 13:14:41,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:14:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-09 13:14:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-09 13:14:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-09 13:14:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 164 transitions. [2018-12-09 13:14:42,008 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 164 transitions. Word has length 47 [2018-12-09 13:14:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:42,008 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 164 transitions. [2018-12-09 13:14:42,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:14:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 164 transitions. [2018-12-09 13:14:42,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 13:14:42,009 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:42,009 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:42,009 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:42,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:42,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1827401059, now seen corresponding path program 1 times [2018-12-09 13:14:42,009 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:42,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:42,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,010 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:14:42,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:14:42,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 13:14:42,077 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:42,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 13:14:42,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 13:14:42,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:14:42,078 INFO L87 Difference]: Start difference. First operand 141 states and 164 transitions. Second operand 7 states. [2018-12-09 13:14:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:42,244 INFO L93 Difference]: Finished difference Result 258 states and 305 transitions. [2018-12-09 13:14:42,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 13:14:42,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 13:14:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:42,246 INFO L225 Difference]: With dead ends: 258 [2018-12-09 13:14:42,246 INFO L226 Difference]: Without dead ends: 141 [2018-12-09 13:14:42,247 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:14:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-09 13:14:42,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-09 13:14:42,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-09 13:14:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-12-09 13:14:42,259 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 52 [2018-12-09 13:14:42,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:42,259 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-12-09 13:14:42,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 13:14:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-12-09 13:14:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 13:14:42,261 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:42,262 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:42,262 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:42,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:42,262 INFO L82 PathProgramCache]: Analyzing trace with hash -892679531, now seen corresponding path program 1 times [2018-12-09 13:14:42,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:42,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:42,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,264 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:14:42,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:14:42,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 13:14:42,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:42,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 13:14:42,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 13:14:42,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 13:14:42,345 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 5 states. [2018-12-09 13:14:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:42,657 INFO L93 Difference]: Finished difference Result 365 states and 439 transitions. [2018-12-09 13:14:42,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:14:42,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-09 13:14:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:42,659 INFO L225 Difference]: With dead ends: 365 [2018-12-09 13:14:42,659 INFO L226 Difference]: Without dead ends: 248 [2018-12-09 13:14:42,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 13:14:42,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-12-09 13:14:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2018-12-09 13:14:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-12-09 13:14:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2018-12-09 13:14:42,680 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 70 [2018-12-09 13:14:42,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:42,681 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2018-12-09 13:14:42,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 13:14:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2018-12-09 13:14:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 13:14:42,683 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:42,683 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:42,683 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:42,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:42,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1850632469, now seen corresponding path program 1 times [2018-12-09 13:14:42,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:42,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:42,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:42,685 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:14:42,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:14:42,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 13:14:42,781 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:42,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 13:14:42,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 13:14:42,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 13:14:42,782 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand 10 states. [2018-12-09 13:14:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:43,109 INFO L93 Difference]: Finished difference Result 735 states and 899 transitions. [2018-12-09 13:14:43,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 13:14:43,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-12-09 13:14:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:43,113 INFO L225 Difference]: With dead ends: 735 [2018-12-09 13:14:43,113 INFO L226 Difference]: Without dead ends: 530 [2018-12-09 13:14:43,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 13:14:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-12-09 13:14:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 520. [2018-12-09 13:14:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-12-09 13:14:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 606 transitions. [2018-12-09 13:14:43,148 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 606 transitions. Word has length 84 [2018-12-09 13:14:43,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:43,149 INFO L480 AbstractCegarLoop]: Abstraction has 520 states and 606 transitions. [2018-12-09 13:14:43,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 13:14:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 606 transitions. [2018-12-09 13:14:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-09 13:14:43,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:43,151 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] [2018-12-09 13:14:43,152 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:43,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:43,152 INFO L82 PathProgramCache]: Analyzing trace with hash -120706479, now seen corresponding path program 1 times [2018-12-09 13:14:43,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:43,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:43,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:43,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:43,153 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 13:14:43,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:43,217 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:43,218 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-12-09 13:14:43,219 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [110], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [241], [245], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-12-09 13:14:43,240 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:43,240 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:43,454 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 13:14:43,455 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Performed 2183 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2183 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 13:14:43,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:43,461 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 13:14:43,635 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-09 13:14:43,635 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 13:14:43,660 INFO L418 sIntCurrentIteration]: We unified 140 AI predicates to 140 [2018-12-09 13:14:43,660 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 13:14:43,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 13:14:43,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-09 13:14:43,661 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:43,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 13:14:43,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 13:14:43,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 13:14:43,662 INFO L87 Difference]: Start difference. First operand 520 states and 606 transitions. Second operand 8 states. [2018-12-09 13:14:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:44,590 INFO L93 Difference]: Finished difference Result 1206 states and 1449 transitions. [2018-12-09 13:14:44,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:14:44,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2018-12-09 13:14:44,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:44,592 INFO L225 Difference]: With dead ends: 1206 [2018-12-09 13:14:44,592 INFO L226 Difference]: Without dead ends: 710 [2018-12-09 13:14:44,593 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 13:14:44,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2018-12-09 13:14:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 693. [2018-12-09 13:14:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-12-09 13:14:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 808 transitions. [2018-12-09 13:14:44,617 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 808 transitions. Word has length 141 [2018-12-09 13:14:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:44,617 INFO L480 AbstractCegarLoop]: Abstraction has 693 states and 808 transitions. [2018-12-09 13:14:44,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 13:14:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 808 transitions. [2018-12-09 13:14:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-09 13:14:44,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:44,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:44,619 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:44,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:44,619 INFO L82 PathProgramCache]: Analyzing trace with hash 21831407, now seen corresponding path program 1 times [2018-12-09 13:14:44,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:44,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:44,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:44,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:44,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:14:44,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:44,666 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:44,666 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-12-09 13:14:44,666 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [160], [162], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [241], [245], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [298], [299], [300], [301], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-12-09 13:14:44,668 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:44,668 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:46,086 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:46,087 INFO L272 AbstractInterpreter]: Visited 121 different actions 951 times. Merged at 21 different actions 105 times. Widened at 1 different actions 1 times. Performed 41400 root evaluator evaluations with a maximum evaluation depth of 3. Performed 41400 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 23 fixpoints after 6 different actions. Largest state had 133 variables. [2018-12-09 13:14:46,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:46,093 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:46,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:46,093 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 13:14:46,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:46,099 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:46,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 13:14:46,285 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 13:14:46,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 13:14:46,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-09 13:14:46,595 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:46,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 13:14:46,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 13:14:46,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-09 13:14:46,596 INFO L87 Difference]: Start difference. First operand 693 states and 808 transitions. Second operand 11 states. [2018-12-09 13:14:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:47,373 INFO L93 Difference]: Finished difference Result 1308 states and 1663 transitions. [2018-12-09 13:14:47,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 13:14:47,373 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 141 [2018-12-09 13:14:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:47,376 INFO L225 Difference]: With dead ends: 1308 [2018-12-09 13:14:47,376 INFO L226 Difference]: Without dead ends: 923 [2018-12-09 13:14:47,378 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 260 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-09 13:14:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2018-12-09 13:14:47,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 832. [2018-12-09 13:14:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2018-12-09 13:14:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 986 transitions. [2018-12-09 13:14:47,411 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 986 transitions. Word has length 141 [2018-12-09 13:14:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:47,411 INFO L480 AbstractCegarLoop]: Abstraction has 832 states and 986 transitions. [2018-12-09 13:14:47,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 13:14:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 986 transitions. [2018-12-09 13:14:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-09 13:14:47,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:47,413 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] [2018-12-09 13:14:47,413 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:47,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:47,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1668314197, now seen corresponding path program 1 times [2018-12-09 13:14:47,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:47,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:47,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:47,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:47,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:14:47,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:47,466 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:47,467 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-12-09 13:14:47,467 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [113], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [160], [162], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [300], [301], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-12-09 13:14:47,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:47,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:48,897 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:48,897 INFO L272 AbstractInterpreter]: Visited 116 different actions 1025 times. Merged at 19 different actions 98 times. Never widened. Performed 44739 root evaluator evaluations with a maximum evaluation depth of 3. Performed 44739 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 18 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-09 13:14:48,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:48,900 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:48,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:48,900 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 13:14:48,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:48,909 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:48,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 13:14:49,002 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:14:49,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 13:14:49,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 13:14:49,155 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:49,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:14:49,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:14:49,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:14:49,156 INFO L87 Difference]: Start difference. First operand 832 states and 986 transitions. Second operand 6 states. [2018-12-09 13:14:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:49,193 INFO L93 Difference]: Finished difference Result 1606 states and 1949 transitions. [2018-12-09 13:14:49,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 13:14:49,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-12-09 13:14:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:49,196 INFO L225 Difference]: With dead ends: 1606 [2018-12-09 13:14:49,196 INFO L226 Difference]: Without dead ends: 862 [2018-12-09 13:14:49,197 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 271 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:14:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2018-12-09 13:14:49,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 862. [2018-12-09 13:14:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 862 states. [2018-12-09 13:14:49,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1018 transitions. [2018-12-09 13:14:49,224 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1018 transitions. Word has length 137 [2018-12-09 13:14:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:49,224 INFO L480 AbstractCegarLoop]: Abstraction has 862 states and 1018 transitions. [2018-12-09 13:14:49,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:14:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1018 transitions. [2018-12-09 13:14:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-12-09 13:14:49,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:49,226 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] [2018-12-09 13:14:49,226 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:49,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:49,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1710114353, now seen corresponding path program 1 times [2018-12-09 13:14:49,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:49,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:49,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:49,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:49,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:14:49,281 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:49,281 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:49,281 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-12-09 13:14:49,281 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [124], [129], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [236], [246], [249], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [286], [288], [289], [290], [291], [292], [293], [296], [297], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [338], [339] [2018-12-09 13:14:49,283 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:49,283 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:49,871 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:49,871 INFO L272 AbstractInterpreter]: Visited 111 different actions 563 times. Merged at 17 different actions 57 times. Never widened. Performed 18510 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18510 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 7 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 13:14:49,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:49,873 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:49,873 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:49,873 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 [2018-12-09 13:14:49,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:49,879 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:49,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 13:14:49,965 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 13:14:50,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 13:14:50,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-09 13:14:50,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:50,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 13:14:50,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 13:14:50,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 13:14:50,122 INFO L87 Difference]: Start difference. First operand 862 states and 1018 transitions. Second operand 5 states. [2018-12-09 13:14:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:50,149 INFO L93 Difference]: Finished difference Result 1587 states and 1916 transitions. [2018-12-09 13:14:50,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 13:14:50,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-12-09 13:14:50,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:50,151 INFO L225 Difference]: With dead ends: 1587 [2018-12-09 13:14:50,151 INFO L226 Difference]: Without dead ends: 749 [2018-12-09 13:14:50,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 13:14:50,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2018-12-09 13:14:50,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2018-12-09 13:14:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2018-12-09 13:14:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 878 transitions. [2018-12-09 13:14:50,177 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 878 transitions. Word has length 133 [2018-12-09 13:14:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:50,177 INFO L480 AbstractCegarLoop]: Abstraction has 749 states and 878 transitions. [2018-12-09 13:14:50,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 13:14:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 878 transitions. [2018-12-09 13:14:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-12-09 13:14:50,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:50,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:50,179 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:50,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:50,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2030770417, now seen corresponding path program 1 times [2018-12-09 13:14:50,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:50,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:50,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:50,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:50,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-12-09 13:14:50,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:50,267 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:50,268 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-12-09 13:14:50,268 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [233], [236], [241], [245], [246], [249], [252], [254], [260], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [330], [331], [332], [333], [336], [337], [338], [339] [2018-12-09 13:14:50,269 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:50,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:51,323 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:51,323 INFO L272 AbstractInterpreter]: Visited 139 different actions 941 times. Merged at 20 different actions 98 times. Never widened. Performed 33782 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33782 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 17 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 13:14:51,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:51,325 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:51,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:51,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 [2018-12-09 13:14:51,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:51,332 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:51,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 80 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 13:14:51,484 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-12-09 13:14:51,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 13:14:51,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-12-09 13:14:51,787 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 13:14:51,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 13:14:51,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 13:14:51,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-12-09 13:14:51,788 INFO L87 Difference]: Start difference. First operand 749 states and 878 transitions. Second operand 16 states. [2018-12-09 13:14:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:53,139 INFO L93 Difference]: Finished difference Result 1873 states and 2384 transitions. [2018-12-09 13:14:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-09 13:14:53,139 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 207 [2018-12-09 13:14:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:53,144 INFO L225 Difference]: With dead ends: 1873 [2018-12-09 13:14:53,144 INFO L226 Difference]: Without dead ends: 1390 [2018-12-09 13:14:53,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 406 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-12-09 13:14:53,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2018-12-09 13:14:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1205. [2018-12-09 13:14:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-12-09 13:14:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1408 transitions. [2018-12-09 13:14:53,219 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1408 transitions. Word has length 207 [2018-12-09 13:14:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:53,219 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1408 transitions. [2018-12-09 13:14:53,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 13:14:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1408 transitions. [2018-12-09 13:14:53,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-12-09 13:14:53,222 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:53,223 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:53,223 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:53,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:53,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1688407411, now seen corresponding path program 1 times [2018-12-09 13:14:53,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:53,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:53,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:53,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:53,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-12-09 13:14:53,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:53,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:53,326 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-12-09 13:14:53,326 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [160], [162], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [233], [236], [241], [245], [246], [249], [252], [254], [260], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [330], [331], [332], [333], [336], [337], [338], [339] [2018-12-09 13:14:53,327 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:53,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:54,780 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:54,780 INFO L272 AbstractInterpreter]: Visited 144 different actions 1097 times. Merged at 22 different actions 109 times. Never widened. Performed 49214 root evaluator evaluations with a maximum evaluation depth of 5. Performed 49214 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 23 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-09 13:14:54,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:54,782 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:54,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:54,782 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 [2018-12-09 13:14:54,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:54,788 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:54,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-12-09 13:14:54,927 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:55,281 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-12-09 13:14:55,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 13:14:55,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 13:14:55,296 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:55,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 13:14:55,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 13:14:55,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 13:14:55,297 INFO L87 Difference]: Start difference. First operand 1205 states and 1408 transitions. Second operand 8 states. [2018-12-09 13:14:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:55,474 INFO L93 Difference]: Finished difference Result 2919 states and 3479 transitions. [2018-12-09 13:14:55,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 13:14:55,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 211 [2018-12-09 13:14:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:55,479 INFO L225 Difference]: With dead ends: 2919 [2018-12-09 13:14:55,479 INFO L226 Difference]: Without dead ends: 1918 [2018-12-09 13:14:55,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 406 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 13:14:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2018-12-09 13:14:55,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1907. [2018-12-09 13:14:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2018-12-09 13:14:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2222 transitions. [2018-12-09 13:14:55,543 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2222 transitions. Word has length 211 [2018-12-09 13:14:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:55,544 INFO L480 AbstractCegarLoop]: Abstraction has 1907 states and 2222 transitions. [2018-12-09 13:14:55,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 13:14:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2222 transitions. [2018-12-09 13:14:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-12-09 13:14:55,547 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:14:55,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:14:55,547 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:14:55,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:55,547 INFO L82 PathProgramCache]: Analyzing trace with hash -697438929, now seen corresponding path program 1 times [2018-12-09 13:14:55,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:14:55,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:55,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:55,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:14:55,548 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:14:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-09 13:14:55,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:55,612 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:14:55,612 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-12-09 13:14:55,612 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [193], [196], [200], [206], [209], [213], [214], [218], [221], [223], [226], [233], [236], [241], [245], [246], [249], [252], [254], [260], [264], [267], [268], [269], [270], [271], [272], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [286], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [304], [305], [308], [309], [314], [315], [316], [317], [318], [319], [320], [321], [322], [324], [325], [326], [327], [330], [331], [332], [333], [336], [337], [338], [339] [2018-12-09 13:14:55,614 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:14:55,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:14:56,466 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:14:56,466 INFO L272 AbstractInterpreter]: Visited 139 different actions 737 times. Merged at 20 different actions 75 times. Never widened. Performed 28282 root evaluator evaluations with a maximum evaluation depth of 5. Performed 28282 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 13:14:56,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:14:56,467 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:14:56,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:14:56,467 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/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 [2018-12-09 13:14:56,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:14:56,474 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:14:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:14:56,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:14:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 13:14:56,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:14:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-09 13:14:56,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 13:14:56,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-09 13:14:56,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:14:56,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:14:56,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:14:56,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-09 13:14:56,745 INFO L87 Difference]: Start difference. First operand 1907 states and 2222 transitions. Second operand 6 states. [2018-12-09 13:14:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:14:56,785 INFO L93 Difference]: Finished difference Result 2415 states and 2810 transitions. [2018-12-09 13:14:56,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 13:14:56,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-12-09 13:14:56,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:14:56,786 INFO L225 Difference]: With dead ends: 2415 [2018-12-09 13:14:56,786 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 13:14:56,788 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-09 13:14:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 13:14:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 13:14:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 13:14:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 13:14:56,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2018-12-09 13:14:56,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:14:56,789 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 13:14:56,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:14:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 13:14:56,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:14:56,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 13:14:56,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:56,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:57,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 13:14:58,925 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 28 [2018-12-09 13:14:59,067 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 976 982) the Hoare annotation is: true [2018-12-09 13:14:59,067 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 976 982) no Hoare annotation was computed. [2018-12-09 13:14:59,067 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 983 991) no Hoare annotation was computed. [2018-12-09 13:14:59,067 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 983 991) the Hoare annotation is: true [2018-12-09 13:14:59,067 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 983 991) no Hoare annotation was computed. [2018-12-09 13:14:59,067 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 355 379) the Hoare annotation is: true [2018-12-09 13:14:59,067 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 355 379) no Hoare annotation was computed. [2018-12-09 13:14:59,067 INFO L444 ceAbstractionStarter]: At program point L369(line 369) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-09 13:14:59,067 INFO L448 ceAbstractionStarter]: For program point L367(lines 367 373) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L444 ceAbstractionStarter]: At program point L365(line 365) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-09 13:14:59,068 INFO L448 ceAbstractionStarter]: For program point L365-1(line 365) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 376) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L448 ceAbstractionStarter]: For program point L363-1(lines 355 379) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L451 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: true [2018-12-09 13:14:59,068 INFO L448 ceAbstractionStarter]: For program point L361-1(line 361) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 456 478) 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))) [2018-12-09 13:14:59,068 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 456 478) no Hoare annotation was computed. [2018-12-09 13:14:59,068 INFO L444 ceAbstractionStarter]: At program point L468(line 468) 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))) [2018-12-09 13:14:59,068 INFO L444 ceAbstractionStarter]: At program point L468-1(line 468) 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))) [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point L466(lines 466 473) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 466 473) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L444 ceAbstractionStarter]: At program point L463(line 463) 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))) [2018-12-09 13:14:59,069 INFO L444 ceAbstractionStarter]: At program point L462(line 462) 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))) [2018-12-09 13:14:59,069 INFO L444 ceAbstractionStarter]: At program point L462-1(line 462) 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))) [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 456 478) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 261 269) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 261 269) the Hoare annotation is: true [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 261 269) no Hoare annotation was computed. [2018-12-09 13:14:59,069 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 338) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L451 ceAbstractionStarter]: At program point L332(line 332) the Hoare annotation is: true [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point L332-1(line 332) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 325 343) the Hoare annotation is: true [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 325 343) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 325 343) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 969 975) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 969 975) the Hoare annotation is: true [2018-12-09 13:14:59,070 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 443 452) 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))) [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 443 452) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 443 452) no Hoare annotation was computed. [2018-12-09 13:14:59,070 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2018-12-09 13:14:59,071 INFO L451 ceAbstractionStarter]: At program point L255(line 255) the Hoare annotation is: true [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point L255-1(line 255) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 242 249) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 242 249) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 242 249) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 925 938) no Hoare annotation was computed. [2018-12-09 13:14:59,071 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 925 938) the Hoare annotation is: true [2018-12-09 13:14:59,071 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 925 938) no Hoare annotation was computed. [2018-12-09 13:14:59,072 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse2 (< ~waterLevel~0 2) .cse1) (or .cse2 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-09 13:14:59,072 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~methaneLevelCritical~0 1) (<= ~methaneLevelCritical~0 processEnvironment_~tmp~3) .cse2 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2 .cse1))) [2018-12-09 13:14:59,072 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2018-12-09 13:14:59,072 INFO L444 ceAbstractionStarter]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) .cse1))) [2018-12-09 13:14:59,072 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 209 233) no Hoare annotation was computed. [2018-12-09 13:14:59,072 INFO L448 ceAbstractionStarter]: For program point L215-1(line 215) no Hoare annotation was computed. [2018-12-09 13:14:59,072 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 230) no Hoare annotation was computed. [2018-12-09 13:14:59,072 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 209 233) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,072 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< ~waterLevel~0 2) .cse0) .cse1) (or .cse1 .cse0 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) .cse0))) [2018-12-09 13:14:59,072 INFO L448 ceAbstractionStarter]: For program point L228-1(lines 209 233) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-12-09 13:14:59,073 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) 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))) [2018-12-09 13:14:59,073 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 85 98) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 13:14:59,073 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 13:14:59,073 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-12-09 13:14:59,073 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 13:14:59,074 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) 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))) [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 939 947) no Hoare annotation was computed. [2018-12-09 13:14:59,074 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 939 947) the Hoare annotation is: true [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 939 947) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 13:14:59,075 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)) [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 234 241) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 234 241) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 234 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,075 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 916 924) the Hoare annotation is: true [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 916 924) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 916 924) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 306 324) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-12-09 13:14:59,075 INFO L451 ceAbstractionStarter]: At program point L313(line 313) the Hoare annotation is: true [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point L313-1(line 313) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 306 324) the Hoare annotation is: true [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 306 324) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 872 883) the Hoare annotation is: (let ((.cse0 (< |old(~methaneLevelCritical~0)| 1)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse5 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1 .cse2) (or .cse0 .cse3 (< ~waterLevel~0 1) .cse2 .cse1) (or .cse3 .cse4 .cse2 (not (= ~waterLevel~0 1)) .cse5) (or .cse4 .cse2 .cse5 (not (= ~waterLevel~0 2))))) [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point L876-1(lines 872 883) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 872 883) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 884 892) the Hoare annotation is: true [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 884 892) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 884 892) no Hoare annotation was computed. [2018-12-09 13:14:59,076 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 382 411) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 382 411) the Hoare annotation is: true [2018-12-09 13:14:59,077 INFO L451 ceAbstractionStarter]: At program point L407(lines 382 411) the Hoare annotation is: true [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point L403(line 403) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 400) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L451 ceAbstractionStarter]: At program point L396-1(lines 396 400) the Hoare annotation is: true [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point L393(line 393) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L451 ceAbstractionStarter]: At program point L392-2(lines 392 406) the Hoare annotation is: true [2018-12-09 13:14:59,077 INFO L451 ceAbstractionStarter]: At program point L388(line 388) the Hoare annotation is: true [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point L388-1(line 388) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-12-09 13:14:59,077 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-12-09 13:14:59,077 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-12-09 13:14:59,078 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (and (not (= |old(~pumpRunning~0)| 0)) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (or (< |old(~waterLevel~0)| 2) .cse1))))) [2018-12-09 13:14:59,078 INFO L444 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (or (< |old(~waterLevel~0)| 2) .cse1)))) [2018-12-09 13:14:59,078 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-12-09 13:14:59,078 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (not (= |old(~waterLevel~0)| 1))) (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (not (= |old(~pumpRunning~0)| 0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-09 13:14:59,078 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 848 859) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-12-09 13:14:59,078 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 848 859) no Hoare annotation was computed. [2018-12-09 13:14:59,078 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 848 859) no Hoare annotation was computed. [2018-12-09 13:14:59,078 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 436 442) no Hoare annotation was computed. [2018-12-09 13:14:59,078 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 436 442) the Hoare annotation is: true [2018-12-09 13:14:59,078 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 13:14:59,078 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)) [2018-12-09 13:14:59,079 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 13:14:59,079 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 13:14:59,079 INFO L448 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-12-09 13:14:59,079 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or (or .cse0 (< ~waterLevel~0 2) .cse2) .cse1))) [2018-12-09 13:14:59,079 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-12-09 13:14:59,079 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-09 13:14:59,079 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-12-09 13:14:59,079 INFO L444 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,079 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-09 13:14:59,079 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-12-09 13:14:59,079 INFO L444 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or (or .cse0 (< ~waterLevel~0 2) .cse2) .cse1))) [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 344 351) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 344 351) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1))) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 344 351) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point L864-1(lines 860 871) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 860 871) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 860 871) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2018-12-09 13:14:59,080 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2018-12-09 13:14:59,080 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L444 ceAbstractionStarter]: At program point L193(line 193) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or (< ~waterLevel~0 1) .cse1 (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-09 13:14:59,081 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 183 207) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L444 ceAbstractionStarter]: At program point L189(line 189) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) .cse1))) [2018-12-09 13:14:59,081 INFO L448 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 183 207) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,081 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< ~waterLevel~0 2) .cse0) .cse1) (or .cse1 .cse0 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) .cse0))) [2018-12-09 13:14:59,081 INFO L448 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-12-09 13:14:59,081 INFO L444 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 13:14:59,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:14:59 BoogieIcfgContainer [2018-12-09 13:14:59,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:14:59,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:14:59,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:14:59,092 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:14:59,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:41" (3/4) ... [2018-12-09 13:14:59,095 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:14:59,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 13:14:59,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 13:14:59,100 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 13:14:59,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-09 13:14:59,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 13:14:59,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 13:14:59,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 13:14:59,107 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-09 13:14:59,107 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 13:14:59,107 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 13:14:59,108 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 13:14:59,108 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 13:14:59,108 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 13:14:59,125 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 13:14:59,125 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 13:14:59,148 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1ba1054c-958b-43cc-b7a8-778b5be9f9cc/bin-2019/utaipan/witness.graphml [2018-12-09 13:14:59,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:14:59,149 INFO L168 Benchmark]: Toolchain (without parser) took 18239.74 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.4 GB). Free memory was 951.3 MB in the beginning and 2.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 355.4 MB. Max. memory is 11.5 GB. [2018-12-09 13:14:59,149 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:14:59,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-09 13:14:59,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.70 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. [2018-12-09 13:14:59,150 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 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. [2018-12-09 13:14:59,150 INFO L168 Benchmark]: RCFGBuilder took 402.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2018-12-09 13:14:59,150 INFO L168 Benchmark]: TraceAbstraction took 17449.02 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -955.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-12-09 13:14:59,150 INFO L168 Benchmark]: Witness Printer took 57.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-09 13:14:59,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.70 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 22.87 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. * RCFGBuilder took 402.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17449.02 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: -955.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. * Witness Printer took 57.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 163 locations, 1 error locations. SAFE Result, 17.4s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 4.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2428 SDtfs, 2129 SDslu, 6622 SDs, 0 SdLazy, 5178 SolverSat, 1111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 2356 GetRequests, 2175 SyntacticMatches, 31 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1907occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.0s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9982540990902596 AbsIntWeakeningRatio, 0.8642857142857143 AbsIntAvgWeakeningVarsNumRemoved, 56.9 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 333 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 3009 PreInvPairs, 3130 NumberOfFragments, 1388 HoareAnnotationTreeSize, 3009 FomulaSimplifications, 7075 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 68 FomulaSimplificationsInter, 17160 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2512 NumberOfCodeBlocks, 2512 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3524 ConstructedInterpolants, 0 QuantifiedInterpolants, 852695 SizeOfPredicates, 26 NumberOfNonLiveVariables, 5529 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 1098/1172 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...