./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac98b61700c421642ba0cea32b1043bdcac0ece8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 08:16:48,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:16:48,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:16:48,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:16:48,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:16:48,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:16:48,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:16:48,889 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:16:48,890 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:16:48,890 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:16:48,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:16:48,891 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:16:48,891 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:16:48,892 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:16:48,892 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:16:48,893 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:16:48,893 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:16:48,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:16:48,895 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:16:48,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:16:48,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:16:48,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:16:48,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:16:48,898 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:16:48,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:16:48,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:16:48,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:16:48,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:16:48,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:16:48,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:16:48,901 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:16:48,901 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:16:48,901 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:16:48,901 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:16:48,902 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:16:48,902 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:16:48,902 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 08:16:48,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:16:48,909 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:16:48,910 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 08:16:48,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 08:16:48,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 08:16:48,911 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:16:48,911 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:16:48,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:16:48,912 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:16:48,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:16:48,913 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:16:48,913 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 08:16:48,913 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:16:48,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 08:16:48,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 08:16:48,913 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_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac98b61700c421642ba0cea32b1043bdcac0ece8 [2018-12-02 08:16:48,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:16:48,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:16:48,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:16:48,939 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:16:48,940 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:16:48,940 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-12-02 08:16:48,977 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/data/d61c15fdc/087670296a1142d988c6ef7a793e8e98/FLAG1290458c8 [2018-12-02 08:16:49,372 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:16:49,373 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/sv-benchmarks/c/product-lines/minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-12-02 08:16:49,378 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/data/d61c15fdc/087670296a1142d988c6ef7a793e8e98/FLAG1290458c8 [2018-12-02 08:16:49,386 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/data/d61c15fdc/087670296a1142d988c6ef7a793e8e98 [2018-12-02 08:16:49,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:16:49,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:16:49,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:49,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:16:49,391 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:16:49,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49, skipping insertion in model container [2018-12-02 08:16:49,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:16:49,418 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:16:49,565 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:49,604 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:16:49,647 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:49,662 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:16:49,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49 WrapperNode [2018-12-02 08:16:49,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:49,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:49,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:16:49,663 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:16:49,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:49,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:16:49,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:16:49,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:16:49,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... [2018-12-02 08:16:49,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:16:49,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:16:49,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:16:49,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:16:49,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:16:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 08:16:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 08:16:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:16:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:16:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:16:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:16:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 08:16:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 08:16:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 08:16:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 08:16:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 08:16:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 08:16:49,744 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 08:16:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 08:16:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 08:16:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 08:16:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 08:16:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 08:16:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 08:16:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 08:16:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 08:16:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 08:16:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 08:16:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 08:16:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 08:16:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:16:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:16:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 08:16:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 08:16:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 08:16:49,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 08:16:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 08:16:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 08:16:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 08:16:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 08:16:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 08:16:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 08:16:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 08:16:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 08:16:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 08:16:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:16:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:16:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 08:16:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 08:16:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 08:16:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 08:16:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:16:49,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:16:50,083 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:16:50,083 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 08:16:50,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:50 BoogieIcfgContainer [2018-12-02 08:16:50,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:16:50,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:16:50,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:16:50,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:16:50,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:16:49" (1/3) ... [2018-12-02 08:16:50,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a5bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:50, skipping insertion in model container [2018-12-02 08:16:50,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:49" (2/3) ... [2018-12-02 08:16:50,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a5bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:50, skipping insertion in model container [2018-12-02 08:16:50,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:50" (3/3) ... [2018-12-02 08:16:50,091 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52_true-unreach-call_false-termination.cil.c [2018-12-02 08:16:50,099 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:16:50,106 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:16:50,120 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:16:50,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:16:50,148 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:16:50,148 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:16:50,148 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:16:50,148 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:16:50,148 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:16:50,148 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:16:50,148 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:16:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2018-12-02 08:16:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 08:16:50,171 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:50,171 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] [2018-12-02 08:16:50,173 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:50,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:50,176 INFO L82 PathProgramCache]: Analyzing trace with hash 24610597, now seen corresponding path program 1 times [2018-12-02 08:16:50,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:50,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:50,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:50,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:50,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:16:50,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:50,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 08:16:50,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 08:16:50,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:16:50,334 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2018-12-02 08:16:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:50,358 INFO L93 Difference]: Finished difference Result 276 states and 341 transitions. [2018-12-02 08:16:50,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 08:16:50,359 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 08:16:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:50,366 INFO L225 Difference]: With dead ends: 276 [2018-12-02 08:16:50,367 INFO L226 Difference]: Without dead ends: 138 [2018-12-02 08:16:50,369 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 [2018-12-02 08:16:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-02 08:16:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-02 08:16:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-02 08:16:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2018-12-02 08:16:50,400 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2018-12-02 08:16:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:50,400 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2018-12-02 08:16:50,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 08:16:50,400 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2018-12-02 08:16:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 08:16:50,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:50,402 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] [2018-12-02 08:16:50,402 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:50,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:50,402 INFO L82 PathProgramCache]: Analyzing trace with hash -988749938, now seen corresponding path program 1 times [2018-12-02 08:16:50,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:50,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:50,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:50,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:50,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:16:50,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:50,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:16:50,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:16:50,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:16:50,453 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2018-12-02 08:16:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:50,465 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2018-12-02 08:16:50,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:16:50,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 08:16:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:50,467 INFO L225 Difference]: With dead ends: 215 [2018-12-02 08:16:50,467 INFO L226 Difference]: Without dead ends: 129 [2018-12-02 08:16:50,468 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 [2018-12-02 08:16:50,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-02 08:16:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-12-02 08:16:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-12-02 08:16:50,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-12-02 08:16:50,475 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2018-12-02 08:16:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:50,475 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-12-02 08:16:50,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:16:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-12-02 08:16:50,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 08:16:50,476 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:50,476 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] [2018-12-02 08:16:50,476 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:50,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:50,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1483460467, now seen corresponding path program 1 times [2018-12-02 08:16:50,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:50,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:50,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:50,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 08:16:50,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:50,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:16:50,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:16:50,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:16:50,542 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 7 states. [2018-12-02 08:16:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:50,800 INFO L93 Difference]: Finished difference Result 389 states and 470 transitions. [2018-12-02 08:16:50,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:16:50,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-02 08:16:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:50,802 INFO L225 Difference]: With dead ends: 389 [2018-12-02 08:16:50,802 INFO L226 Difference]: Without dead ends: 284 [2018-12-02 08:16:50,803 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 [2018-12-02 08:16:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-12-02 08:16:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2018-12-02 08:16:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-12-02 08:16:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 328 transitions. [2018-12-02 08:16:50,831 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 328 transitions. Word has length 52 [2018-12-02 08:16:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:50,831 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 328 transitions. [2018-12-02 08:16:50,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:16:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 328 transitions. [2018-12-02 08:16:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 08:16:50,833 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:50,834 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:50,834 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:50,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:50,834 INFO L82 PathProgramCache]: Analyzing trace with hash 942558664, now seen corresponding path program 1 times [2018-12-02 08:16:50,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:50,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:50,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:50,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:50,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:50,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 08:16:50,937 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:50,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 08:16:50,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 08:16:50,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:16:50,938 INFO L87 Difference]: Start difference. First operand 272 states and 328 transitions. Second operand 10 states. [2018-12-02 08:16:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:51,244 INFO L93 Difference]: Finished difference Result 968 states and 1260 transitions. [2018-12-02 08:16:51,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 08:16:51,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-02 08:16:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:51,248 INFO L225 Difference]: With dead ends: 968 [2018-12-02 08:16:51,248 INFO L226 Difference]: Without dead ends: 720 [2018-12-02 08:16:51,249 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 [2018-12-02 08:16:51,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2018-12-02 08:16:51,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 708. [2018-12-02 08:16:51,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-12-02 08:16:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 888 transitions. [2018-12-02 08:16:51,289 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 888 transitions. Word has length 57 [2018-12-02 08:16:51,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:51,290 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 888 transitions. [2018-12-02 08:16:51,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 08:16:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 888 transitions. [2018-12-02 08:16:51,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 08:16:51,292 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:51,292 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:51,292 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:51,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1580883150, now seen corresponding path program 1 times [2018-12-02 08:16:51,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:51,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:51,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:51,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:51,293 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:51,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:51,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 08:16:51,338 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:51,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 08:16:51,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 08:16:51,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:16:51,339 INFO L87 Difference]: Start difference. First operand 708 states and 888 transitions. Second operand 4 states. [2018-12-02 08:16:51,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:51,557 INFO L93 Difference]: Finished difference Result 1785 states and 2445 transitions. [2018-12-02 08:16:51,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 08:16:51,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-02 08:16:51,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:51,562 INFO L225 Difference]: With dead ends: 1785 [2018-12-02 08:16:51,562 INFO L226 Difference]: Without dead ends: 1101 [2018-12-02 08:16:51,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 08:16:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2018-12-02 08:16:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 963. [2018-12-02 08:16:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2018-12-02 08:16:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1214 transitions. [2018-12-02 08:16:51,611 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1214 transitions. Word has length 61 [2018-12-02 08:16:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:51,611 INFO L480 AbstractCegarLoop]: Abstraction has 963 states and 1214 transitions. [2018-12-02 08:16:51,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 08:16:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1214 transitions. [2018-12-02 08:16:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-02 08:16:51,613 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:51,613 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] [2018-12-02 08:16:51,614 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:51,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:51,614 INFO L82 PathProgramCache]: Analyzing trace with hash -2119873072, now seen corresponding path program 1 times [2018-12-02 08:16:51,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:51,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:51,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:51,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:51,615 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-02 08:16:51,685 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:51,685 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:16:51,685 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-12-02 08:16:51,687 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [90], [99], [103], [107], [110], [115], [121], [123], [129], [132], [135], [145], [146], [160], [161], [200], [207], [210], [218], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [273], [283], [284], [289], [290], [291], [292], [305], [306], [307], [308], [309] [2018-12-02 08:16:51,716 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:16:51,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:16:52,167 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:16:52,168 INFO L272 AbstractInterpreter]: Visited 67 different actions 145 times. Merged at 13 different actions 19 times. Never widened. Performed 4970 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4970 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-02 08:16:52,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:52,174 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:16:52,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:52,174 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:16:52,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:52,183 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:16:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:52,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 08:16:52,351 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:16:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 08:16:52,511 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 08:16:52,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-02 08:16:52,512 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 08:16:52,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 08:16:52,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 08:16:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-02 08:16:52,512 INFO L87 Difference]: Start difference. First operand 963 states and 1214 transitions. Second operand 12 states. [2018-12-02 08:16:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:54,295 INFO L93 Difference]: Finished difference Result 2297 states and 3133 transitions. [2018-12-02 08:16:54,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-02 08:16:54,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2018-12-02 08:16:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:54,299 INFO L225 Difference]: With dead ends: 2297 [2018-12-02 08:16:54,300 INFO L226 Difference]: Without dead ends: 1602 [2018-12-02 08:16:54,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-02 08:16:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2018-12-02 08:16:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1391. [2018-12-02 08:16:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2018-12-02 08:16:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1773 transitions. [2018-12-02 08:16:54,357 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1773 transitions. Word has length 89 [2018-12-02 08:16:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:54,358 INFO L480 AbstractCegarLoop]: Abstraction has 1391 states and 1773 transitions. [2018-12-02 08:16:54,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 08:16:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1773 transitions. [2018-12-02 08:16:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-02 08:16:54,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:54,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:54,362 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:54,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:54,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1502461857, now seen corresponding path program 1 times [2018-12-02 08:16:54,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:54,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:54,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:54,364 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 08:16:54,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:54,431 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:16:54,431 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-02 08:16:54,431 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [88], [89], [90], [99], [103], [107], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [154], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [279], [280], [281], [282], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:16:54,433 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:16:54,433 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:16:54,568 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 08:16:54,568 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Performed 1956 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1956 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-02 08:16:54,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:54,570 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 08:16:54,711 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 97.32% of their original sizes. [2018-12-02 08:16:54,711 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 08:16:54,768 INFO L418 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-12-02 08:16:54,768 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 08:16:54,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 08:16:54,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-02 08:16:54,768 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:54,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 08:16:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 08:16:54,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:16:54,769 INFO L87 Difference]: Start difference. First operand 1391 states and 1773 transitions. Second operand 13 states. [2018-12-02 08:16:56,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:56,355 INFO L93 Difference]: Finished difference Result 2932 states and 3745 transitions. [2018-12-02 08:16:56,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 08:16:56,355 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2018-12-02 08:16:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:56,361 INFO L225 Difference]: With dead ends: 2932 [2018-12-02 08:16:56,361 INFO L226 Difference]: Without dead ends: 1565 [2018-12-02 08:16:56,364 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-12-02 08:16:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2018-12-02 08:16:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1538. [2018-12-02 08:16:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2018-12-02 08:16:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 1943 transitions. [2018-12-02 08:16:56,418 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 1943 transitions. Word has length 134 [2018-12-02 08:16:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:56,418 INFO L480 AbstractCegarLoop]: Abstraction has 1538 states and 1943 transitions. [2018-12-02 08:16:56,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 08:16:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 1943 transitions. [2018-12-02 08:16:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-02 08:16:56,420 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:56,420 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:56,420 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:56,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:56,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1817268730, now seen corresponding path program 1 times [2018-12-02 08:16:56,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:56,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:56,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:56,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:56,422 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 08:16:56,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:56,459 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:16:56,459 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-12-02 08:16:56,459 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [154], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:16:56,461 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:16:56,461 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:16:56,603 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 08:16:56,603 INFO L272 AbstractInterpreter]: Visited 59 different actions 81 times. Merged at 6 different actions 6 times. Never widened. Performed 4643 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4643 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-02 08:16:56,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:56,608 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 08:16:56,758 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 97.3% of their original sizes. [2018-12-02 08:16:56,759 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 08:16:56,819 INFO L418 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-12-02 08:16:56,820 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 08:16:56,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 08:16:56,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-02 08:16:56,820 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:56,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 08:16:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 08:16:56,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 08:16:56,821 INFO L87 Difference]: Start difference. First operand 1538 states and 1943 transitions. Second operand 12 states. [2018-12-02 08:16:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:58,592 INFO L93 Difference]: Finished difference Result 2955 states and 3788 transitions. [2018-12-02 08:16:58,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 08:16:58,592 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 138 [2018-12-02 08:16:58,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:58,597 INFO L225 Difference]: With dead ends: 2955 [2018-12-02 08:16:58,597 INFO L226 Difference]: Without dead ends: 1838 [2018-12-02 08:16:58,599 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-02 08:16:58,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2018-12-02 08:16:58,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1761. [2018-12-02 08:16:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1761 states. [2018-12-02 08:16:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2204 transitions. [2018-12-02 08:16:58,655 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2204 transitions. Word has length 138 [2018-12-02 08:16:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:58,655 INFO L480 AbstractCegarLoop]: Abstraction has 1761 states and 2204 transitions. [2018-12-02 08:16:58,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 08:16:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2204 transitions. [2018-12-02 08:16:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-02 08:16:58,657 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:58,658 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:58,658 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:58,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1332814166, now seen corresponding path program 1 times [2018-12-02 08:16:58,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:58,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:58,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:58,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:58,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-02 08:16:58,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:58,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 08:16:58,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:58,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 08:16:58,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 08:16:58,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:16:58,692 INFO L87 Difference]: Start difference. First operand 1761 states and 2204 transitions. Second operand 4 states. [2018-12-02 08:16:58,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:58,787 INFO L93 Difference]: Finished difference Result 2706 states and 3390 transitions. [2018-12-02 08:16:58,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 08:16:58,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2018-12-02 08:16:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:58,790 INFO L225 Difference]: With dead ends: 2706 [2018-12-02 08:16:58,790 INFO L226 Difference]: Without dead ends: 969 [2018-12-02 08:16:58,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:16:58,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2018-12-02 08:16:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 941. [2018-12-02 08:16:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2018-12-02 08:16:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1149 transitions. [2018-12-02 08:16:58,822 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1149 transitions. Word has length 146 [2018-12-02 08:16:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:58,822 INFO L480 AbstractCegarLoop]: Abstraction has 941 states and 1149 transitions. [2018-12-02 08:16:58,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 08:16:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1149 transitions. [2018-12-02 08:16:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-02 08:16:58,823 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:58,824 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:58,824 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:58,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:58,824 INFO L82 PathProgramCache]: Analyzing trace with hash -61862216, now seen corresponding path program 1 times [2018-12-02 08:16:58,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:58,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:58,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:58,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:58,825 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 08:16:58,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:58,896 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:16:58,896 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-12-02 08:16:58,897 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:16:58,898 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:16:58,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:16:59,527 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:16:59,528 INFO L272 AbstractInterpreter]: Visited 115 different actions 553 times. Merged at 19 different actions 55 times. Never widened. Performed 18165 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18165 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-02 08:16:59,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:59,529 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:16:59,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:16:59,529 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:16:59,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:59,536 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:16:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:59,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:59,647 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:16:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 08:16:59,812 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 08:16:59,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-02 08:16:59,812 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 08:16:59,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 08:16:59,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 08:16:59,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 08:16:59,812 INFO L87 Difference]: Start difference. First operand 941 states and 1149 transitions. Second operand 14 states. [2018-12-02 08:17:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:17:00,890 INFO L93 Difference]: Finished difference Result 1884 states and 2473 transitions. [2018-12-02 08:17:00,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 08:17:00,890 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-12-02 08:17:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:17:00,893 INFO L225 Difference]: With dead ends: 1884 [2018-12-02 08:17:00,893 INFO L226 Difference]: Without dead ends: 1219 [2018-12-02 08:17:00,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 271 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 08:17:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2018-12-02 08:17:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1051. [2018-12-02 08:17:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2018-12-02 08:17:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1282 transitions. [2018-12-02 08:17:00,931 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1282 transitions. Word has length 138 [2018-12-02 08:17:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:17:00,931 INFO L480 AbstractCegarLoop]: Abstraction has 1051 states and 1282 transitions. [2018-12-02 08:17:00,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 08:17:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1282 transitions. [2018-12-02 08:17:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-12-02 08:17:00,933 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:17:00,933 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:17:00,933 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:17:00,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:00,934 INFO L82 PathProgramCache]: Analyzing trace with hash 40283592, now seen corresponding path program 1 times [2018-12-02 08:17:00,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:17:00,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:00,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:00,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:00,934 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:17:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-02 08:17:01,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:01,005 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:17:01,005 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-12-02 08:17:01,006 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:17:01,007 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:17:01,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:17:01,585 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:17:01,585 INFO L272 AbstractInterpreter]: Visited 116 different actions 565 times. Merged at 22 different actions 64 times. Never widened. Performed 17955 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17955 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-02 08:17:01,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:01,597 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:17:01,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:01,597 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:17:01,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:01,605 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:17:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:01,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:17:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-02 08:17:01,723 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:17:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-12-02 08:17:01,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:17:01,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-02 08:17:01,893 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:17:01,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:17:01,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:17:01,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:17:01,893 INFO L87 Difference]: Start difference. First operand 1051 states and 1282 transitions. Second operand 6 states. [2018-12-02 08:17:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:17:01,937 INFO L93 Difference]: Finished difference Result 1814 states and 2268 transitions. [2018-12-02 08:17:01,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:17:01,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-12-02 08:17:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:17:01,939 INFO L225 Difference]: With dead ends: 1814 [2018-12-02 08:17:01,939 INFO L226 Difference]: Without dead ends: 1039 [2018-12-02 08:17:01,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 379 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-02 08:17:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2018-12-02 08:17:01,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2018-12-02 08:17:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-12-02 08:17:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1259 transitions. [2018-12-02 08:17:01,975 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1259 transitions. Word has length 192 [2018-12-02 08:17:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:17:01,975 INFO L480 AbstractCegarLoop]: Abstraction has 1039 states and 1259 transitions. [2018-12-02 08:17:01,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:17:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1259 transitions. [2018-12-02 08:17:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-12-02 08:17:01,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:17:01,977 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:17:01,978 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:17:01,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash -66085214, now seen corresponding path program 1 times [2018-12-02 08:17:01,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:17:01,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:01,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:01,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:01,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:17:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-02 08:17:02,061 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:02,061 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:17:02,061 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-12-02 08:17:02,061 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [154], [156], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:17:02,062 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:17:02,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:17:02,567 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:17:02,567 INFO L272 AbstractInterpreter]: Visited 117 different actions 498 times. Merged at 29 different actions 97 times. Never widened. Performed 15576 root evaluator evaluations with a maximum evaluation depth of 5. Performed 15576 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-02 08:17:02,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:02,568 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:17:02,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:02,568 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:17:02,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:02,574 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:17:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:02,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:17:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 78 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 08:17:02,678 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:17:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 53 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-02 08:17:02,836 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 08:17:02,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-02 08:17:02,836 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 08:17:02,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 08:17:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 08:17:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:17:02,837 INFO L87 Difference]: Start difference. First operand 1039 states and 1259 transitions. Second operand 12 states. [2018-12-02 08:17:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:17:03,230 INFO L93 Difference]: Finished difference Result 2125 states and 2620 transitions. [2018-12-02 08:17:03,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 08:17:03,230 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 194 [2018-12-02 08:17:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:17:03,233 INFO L225 Difference]: With dead ends: 2125 [2018-12-02 08:17:03,233 INFO L226 Difference]: Without dead ends: 1210 [2018-12-02 08:17:03,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 388 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-12-02 08:17:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2018-12-02 08:17:03,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1084. [2018-12-02 08:17:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2018-12-02 08:17:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1248 transitions. [2018-12-02 08:17:03,304 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1248 transitions. Word has length 194 [2018-12-02 08:17:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:17:03,305 INFO L480 AbstractCegarLoop]: Abstraction has 1084 states and 1248 transitions. [2018-12-02 08:17:03,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 08:17:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1248 transitions. [2018-12-02 08:17:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-12-02 08:17:03,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:17:03,307 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:17:03,307 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:17:03,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:03,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1091776679, now seen corresponding path program 1 times [2018-12-02 08:17:03,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:17:03,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:03,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:03,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:03,308 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:17:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-12-02 08:17:03,364 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:03,364 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:17:03,364 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-12-02 08:17:03,364 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [154], [156], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:17:03,365 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:17:03,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:17:04,349 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:17:04,349 INFO L272 AbstractInterpreter]: Visited 123 different actions 800 times. Merged at 33 different actions 158 times. Never widened. Performed 30242 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30242 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 22 fixpoints after 6 different actions. Largest state had 133 variables. [2018-12-02 08:17:04,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:04,351 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:17:04,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:04,351 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:17:04,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:04,357 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:17:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:04,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:17:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-12-02 08:17:04,453 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:17:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-12-02 08:17:04,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:17:04,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-02 08:17:04,619 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:17:04,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:17:04,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:17:04,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:17:04,620 INFO L87 Difference]: Start difference. First operand 1084 states and 1248 transitions. Second operand 6 states. [2018-12-02 08:17:04,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:17:04,657 INFO L93 Difference]: Finished difference Result 1918 states and 2244 transitions. [2018-12-02 08:17:04,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:17:04,658 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2018-12-02 08:17:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:17:04,659 INFO L225 Difference]: With dead ends: 1918 [2018-12-02 08:17:04,659 INFO L226 Difference]: Without dead ends: 1104 [2018-12-02 08:17:04,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 475 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:17:04,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2018-12-02 08:17:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1104. [2018-12-02 08:17:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2018-12-02 08:17:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1270 transitions. [2018-12-02 08:17:04,711 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1270 transitions. Word has length 240 [2018-12-02 08:17:04,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:17:04,712 INFO L480 AbstractCegarLoop]: Abstraction has 1104 states and 1270 transitions. [2018-12-02 08:17:04,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:17:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1270 transitions. [2018-12-02 08:17:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-12-02 08:17:04,715 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:17:04,715 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:17:04,715 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:17:04,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash -787354267, now seen corresponding path program 1 times [2018-12-02 08:17:04,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:17:04,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:04,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:04,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:17:04,716 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:17:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-12-02 08:17:04,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:04,798 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 08:17:04,799 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-12-02 08:17:04,799 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [129], [135], [143], [144], [145], [146], [147], [148], [149], [151], [156], [158], [159], [160], [161], [197], [200], [204], [210], [213], [217], [218], [224], [227], [229], [232], [239], [242], [245], [249], [250], [253], [254], [255], [256], [257], [259], [260], [261], [262], [263], [264], [265], [266], [267], [271], [272], [273], [275], [276], [277], [278], [279], [280], [281], [282], [283], [284], [291], [292], [295], [296], [301], [302], [303], [304], [305], [306], [307], [308], [309], [311], [312], [313], [314], [317], [318] [2018-12-02 08:17:04,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 08:17:04,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 08:17:05,504 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 08:17:05,504 INFO L272 AbstractInterpreter]: Visited 122 different actions 528 times. Merged at 27 different actions 81 times. Never widened. Performed 23263 root evaluator evaluations with a maximum evaluation depth of 5. Performed 23263 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 11 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-02 08:17:05,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:17:05,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 08:17:05,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:17:05,505 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/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 [2018-12-02 08:17:05,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:17:05,511 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 08:17:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:17:05,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:17:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-12-02 08:17:05,609 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 08:17:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-12-02 08:17:05,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:17:05,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-02 08:17:05,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:17:05,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 08:17:05,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 08:17:05,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:17:05,780 INFO L87 Difference]: Start difference. First operand 1104 states and 1270 transitions. Second operand 5 states. [2018-12-02 08:17:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:17:05,826 INFO L93 Difference]: Finished difference Result 1410 states and 1627 transitions. [2018-12-02 08:17:05,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 08:17:05,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2018-12-02 08:17:05,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:17:05,827 INFO L225 Difference]: With dead ends: 1410 [2018-12-02 08:17:05,827 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 08:17:05,829 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 477 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 08:17:05,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 08:17:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 08:17:05,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 08:17:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 08:17:05,829 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2018-12-02 08:17:05,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:17:05,830 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 08:17:05,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 08:17:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 08:17:05,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 08:17:05,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 08:17:05,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:05,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 08:17:06,908 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 36 [2018-12-02 08:17:07,846 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 36 [2018-12-02 08:17:08,366 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 35 [2018-12-02 08:17:08,383 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 932 938) the Hoare annotation is: true [2018-12-02 08:17:08,383 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 932 938) no Hoare annotation was computed. [2018-12-02 08:17:08,383 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 939 947) no Hoare annotation was computed. [2018-12-02 08:17:08,383 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 939 947) the Hoare annotation is: true [2018-12-02 08:17:08,383 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 939 947) no Hoare annotation was computed. [2018-12-02 08:17:08,383 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 958 982) the Hoare annotation is: true [2018-12-02 08:17:08,383 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 958 982) no Hoare annotation was computed. [2018-12-02 08:17:08,383 INFO L444 ceAbstractionStarter]: At program point L972(line 972) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 0))) (.cse3 (< ~waterLevel~0 2)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (or .cse0 (not (= ~waterLevel~0 1)))) (or .cse0 .cse2 .cse3) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse1))) [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L970(lines 970 976) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L968(line 968) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 0))) (.cse3 (< ~waterLevel~0 2)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (or .cse0 (not (= ~waterLevel~0 1)))) (or .cse0 .cse2 .cse3) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse1))) [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L968-1(line 968) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L966(lines 966 979) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L966-1(lines 958 982) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L451 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: true [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L964-1(line 964) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L897(line 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L896-1(line 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 890 912) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 890 912) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 890 912) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L902(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~8 ~systemActive~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L444 ceAbstractionStarter]: At program point L902-1(line 902) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~8 ~systemActive~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L900(lines 900 907) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L900-1(lines 900 907) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point L898(line 898) no Hoare annotation was computed. [2018-12-02 08:17:08,384 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 355 369) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L444 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~pumpRunning~0)|)))) (and (or (or (not (= |old(~systemActive~0)| 1)) (not (= ~waterLevel~0 2))) (= ~systemActive~0 1) .cse0) (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) .cse0 (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1)))) [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 365) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 355 369) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 2)) (.cse0 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (not (= |old(~systemActive~0)| 1)) (not (= ~waterLevel~0 2))) (= ~systemActive~0 1) .cse0) (or (or .cse1 .cse2) .cse3) (or (or (= |old(~systemActive~0)| 0) .cse2) .cse0 (and (not (= ~systemActive~0 0)) .cse3)) (or (or .cse1 (not (= ~waterLevel~0 1))) .cse3))) [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 355 369) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 272 280) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 272 280) the Hoare annotation is: true [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 272 280) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 336 354) the Hoare annotation is: true [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 349) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L451 ceAbstractionStarter]: At program point L343(line 343) the Hoare annotation is: true [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point L345-2(lines 345 349) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point L343-1(line 343) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 336 354) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 336 354) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 925 931) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 925 931) the Hoare annotation is: true [2018-12-02 08:17:08,385 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 877 886) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 877 886) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 877 886) no Hoare annotation was computed. [2018-12-02 08:17:08,385 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 253 260) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 1) .cse0 (not (= ~systemActive~0 1)) .cse1) (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0 .cse1))) [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 253 260) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 253 260) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point L226-1(line 226) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point L224(lines 224 241) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 220 244) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 220 244) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse1 (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0))) [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point L239(line 239) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point L239-1(lines 220 244) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point L234(line 234) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (and (<= 1 processEnvironment_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point L228(lines 228 236) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 127 140) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point L131(lines 131 137) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 127 140) the Hoare annotation is: true [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 127 140) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 186 192) no Hoare annotation was computed. [2018-12-02 08:17:08,386 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 186 192) the Hoare annotation is: true [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 380 447) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,386 INFO L444 ceAbstractionStarter]: At program point L440(lines 389 441) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 380 447) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L430(line 430) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (and (= ~waterLevel~0 1) .cse1) (= ~pumpRunning~0 0)) (and .cse0 (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1) .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L428(lines 428 434) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L428-1(lines 420 435) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse3 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1 .cse3 .cse2) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L391(lines 390 439) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L422(line 422) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (not (= ~systemActive~0 0)) (= ~pumpRunning~0 1) .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 |old(~waterLevel~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 435) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L412(line 412) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse3 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 .cse3 .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L410(lines 410 416) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L410-1(lines 410 416) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L437(lines 390 439) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse3 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse3 .cse2) (and .cse0 .cse1 .cse3 .cse2) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L444 ceAbstractionStarter]: At program point L402(line 402) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse3 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 .cse3 .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L400(lines 400 406) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 400 406) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point L392(lines 392 396) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 380 447) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 141 149) no Hoare annotation was computed. [2018-12-02 08:17:08,387 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 141 149) the Hoare annotation is: true [2018-12-02 08:17:08,387 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 141 149) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:17:08,388 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)) [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 245 252) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 317 335) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 330) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 317 335) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 317 335) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point L324(line 324) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L324-1(line 324) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 118 126) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 118 126) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 118 126) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 74 85) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 74 85) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 74 85) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 816 845) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L830(lines 830 834) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point L830-1(lines 830 834) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 816 845) the Hoare annotation is: true [2018-12-02 08:17:08,388 INFO L448 ceAbstractionStarter]: For program point L827(line 827) no Hoare annotation was computed. [2018-12-02 08:17:08,388 INFO L451 ceAbstractionStarter]: At program point L826-2(lines 826 840) the Hoare annotation is: true [2018-12-02 08:17:08,389 INFO L451 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: true [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point L822-1(line 822) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L451 ceAbstractionStarter]: At program point L841(lines 816 845) the Hoare annotation is: true [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point L837(line 837) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 162 185) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (< |old(~waterLevel~0)| 1)) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) .cse1) (or .cse2 .cse3 .cse1 .cse0) (or .cse2 (not (= ~systemActive~0 0)) .cse3 .cse1))) [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 (not (= |old(~waterLevel~0)| 1)))) (or .cse1 .cse0 .cse2) (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse2 .cse3)) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse4)) (or .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse4) (< |old(~waterLevel~0)| 1) .cse3))) [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point L173(lines 173 179) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (< |old(~waterLevel~0)| 1)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse1 .cse2 (not (= ~systemActive~0 0)) .cse3) (or .cse2 .cse1 .cse3 .cse0 (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse4))))) [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 162 185) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 0))) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse0 .cse1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse2 (or .cse3 (not (= |old(~waterLevel~0)| 1)))) (or .cse3 .cse2 .cse0) (or .cse3 (< |old(~waterLevel~0)| 1) .cse1))) [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 162 185) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point L166(lines 165 184) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 50 61) the Hoare annotation is: (or (not (= 1 ~pumpRunning~0)) (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 50 61) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 50 61) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 870 876) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 870 876) the Hoare annotation is: true [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:17:08,389 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-02 08:17:08,389 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 08:17:08,389 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: (or (or (= |old(~systemActive~0)| 0) (not (= 1 ~pumpRunning~0)) (< ~waterLevel~0 2)) (not (= ~systemActive~0 0))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 194 218) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 194 218) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point L213(line 213) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point L213-1(lines 194 218) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point L208(line 208) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 210) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point L200(line 200) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point L200-1(line 200) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 215) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 62 73) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 62 73) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 62 73) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse3 (< |old(~waterLevel~0)| 1))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse2 .cse1 .cse3 .cse0) (or .cse1 .cse2 (not (= ~systemActive~0 0)) .cse3))) [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2018-12-02 08:17:08,390 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2018-12-02 08:17:08,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:17:08 BoogieIcfgContainer [2018-12-02 08:17:08,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:17:08,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:17:08,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:17:08,400 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:17:08,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:50" (3/4) ... [2018-12-02 08:17:08,403 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 08:17:08,408 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 08:17:08,409 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 08:17:08,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-02 08:17:08,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 08:17:08,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 08:17:08,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 08:17:08,416 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-02 08:17:08,416 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-02 08:17:08,416 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 08:17:08,417 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 08:17:08,417 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 08:17:08,417 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 08:17:08,441 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(systemActive) == 1) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) [2018-12-02 08:17:08,441 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-12-02 08:17:08,469 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa8e8925-0ffb-4e9d-8332-a67405098697/bin-2019/utaipan/witness.graphml [2018-12-02 08:17:08,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:17:08,469 INFO L168 Benchmark]: Toolchain (without parser) took 19080.89 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 961.5 MB). Free memory was 947.0 MB in the beginning and 1.5 GB in the end (delta: -603.0 MB). Peak memory consumption was 358.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:17:08,469 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: Boogie Preprocessor took 22.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: RCFGBuilder took 378.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: TraceAbstraction took 18314.79 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 874.0 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -538.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-02 08:17:08,470 INFO L168 Benchmark]: Witness Printer took 68.96 ms. Allocated memory is still 2.0 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 44.3 kB). Peak memory consumption was 44.3 kB. Max. memory is 11.5 GB. [2018-12-02 08:17:08,471 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 378.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18314.79 ms. Allocated memory was 1.1 GB in the beginning and 2.0 GB in the end (delta: 874.0 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -538.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 68.96 ms. Allocated memory is still 2.0 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 44.3 kB). Peak memory consumption was 44.3 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: ((((!(\old(systemActive) == 1) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 151 locations, 1 error locations. SAFE Result, 18.2s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2575 SDtfs, 3469 SDslu, 7546 SDs, 0 SdLazy, 6913 SolverSat, 1810 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2671 GetRequests, 2445 SyntacticMatches, 31 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1761occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.2s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9979427779127686 AbsIntWeakeningRatio, 0.9185185185185185 AbsIntAvgWeakeningVarsNumRemoved, 43.67407407407408 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 799 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 4315 PreInvPairs, 4395 NumberOfFragments, 1411 HoareAnnotationTreeSize, 4315 FomulaSimplifications, 42624 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 63 FomulaSimplificationsInter, 22238 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2867 NumberOfCodeBlocks, 2867 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3934 ConstructedInterpolants, 0 QuantifiedInterpolants, 884272 SizeOfPredicates, 20 NumberOfNonLiveVariables, 5679 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 26 InterpolantComputations, 9 PerfectInterpolantSequences, 2062/2183 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...