./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-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_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/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 c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:34:42,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:34:42,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:34:42,848 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:34:42,848 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:34:42,848 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:34:42,849 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:34:42,850 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:34:42,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:34:42,851 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:34:42,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:34:42,852 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:34:42,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:34:42,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:34:42,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:34:42,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:34:42,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:34:42,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:34:42,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:34:42,856 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:34:42,857 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:34:42,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:34:42,858 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:34:42,858 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:34:42,859 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:34:42,859 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:34:42,859 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:34:42,860 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:34:42,860 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:34:42,861 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:34:42,861 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:34:42,861 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:34:42,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:34:42,861 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:34:42,862 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:34:42,862 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:34:42,862 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:34:42,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:34:42,870 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:34:42,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:34:42,870 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:34:42,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:34:42,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:34:42,870 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:34:42,870 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:34:42,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:34:42,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:34:42,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:34:42,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:34:42,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:34:42,873 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:34:42,873 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_11bb23c0-5840-4010-b652-d103054c2c3e/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 -> c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 [2018-12-09 10:34:42,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:34:42,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:34:42,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:34:42,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:34:42,899 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:34:42,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-09 10:34:42,934 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/data/765c3d92d/bd38f0e97c1a4ab888a926b5950a413a/FLAG7c23c037d [2018-12-09 10:34:43,281 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:34:43,282 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-09 10:34:43,288 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/data/765c3d92d/bd38f0e97c1a4ab888a926b5950a413a/FLAG7c23c037d [2018-12-09 10:34:43,296 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/data/765c3d92d/bd38f0e97c1a4ab888a926b5950a413a [2018-12-09 10:34:43,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:34:43,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:34:43,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:34:43,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:34:43,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:34:43,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43, skipping insertion in model container [2018-12-09 10:34:43,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:34:43,337 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:34:43,499 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:34:43,539 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:34:43,587 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:34:43,603 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:34:43,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43 WrapperNode [2018-12-09 10:34:43,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:34:43,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:34:43,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:34:43,604 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:34:43,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:34:43,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:34:43,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:34:43,624 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:34:43,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... [2018-12-09 10:34:43,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:34:43,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:34:43,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:34:43,647 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:34:43,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:34:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:34:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:34:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:34:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:34:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 10:34:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 10:34:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:34:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:34:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:34:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:34:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:34:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:34:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:34:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:34:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:34:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:34:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:34:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 10:34:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 10:34:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:34:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:34:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:34:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:34:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:34:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:34:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:34:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:34:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:34:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:34:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:34:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:34:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 10:34:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 10:34:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:34:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:34:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:34:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:34:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 10:34:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 10:34:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:34:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:34:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:34:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:34:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:34:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:34:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:34:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:34:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 10:34:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 10:34:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:34:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:34:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:34:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:34:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:34:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:34:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:34:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:34:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:34:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:34:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 10:34:43,982 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:34:43,982 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:34:43,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:34:43 BoogieIcfgContainer [2018-12-09 10:34:43,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:34:43,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:34:43,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:34:43,985 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:34:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:34:43" (1/3) ... [2018-12-09 10:34:43,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74941ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:34:43, skipping insertion in model container [2018-12-09 10:34:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:34:43" (2/3) ... [2018-12-09 10:34:43,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74941ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:34:43, skipping insertion in model container [2018-12-09 10:34:43,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:34:43" (3/3) ... [2018-12-09 10:34:43,988 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-09 10:34:43,994 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:34:43,998 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:34:44,008 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:34:44,026 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:34:44,026 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:34:44,026 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:34:44,026 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:34:44,026 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:34:44,026 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:34:44,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:34:44,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:34:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-12-09 10:34:44,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:34:44,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:44,043 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:44,045 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:44,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:44,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1573325124, now seen corresponding path program 1 times [2018-12-09 10:34:44,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:44,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:44,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,078 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:44,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:44,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:34:44,184 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:44,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:34:44,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:34:44,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:34:44,197 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-12-09 10:34:44,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:44,221 INFO L93 Difference]: Finished difference Result 286 states and 357 transitions. [2018-12-09 10:34:44,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:34:44,222 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 10:34:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:44,229 INFO L225 Difference]: With dead ends: 286 [2018-12-09 10:34:44,230 INFO L226 Difference]: Without dead ends: 143 [2018-12-09 10:34:44,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:34:44,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-09 10:34:44,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-12-09 10:34:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-09 10:34:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2018-12-09 10:34:44,264 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 46 [2018-12-09 10:34:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:44,264 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2018-12-09 10:34:44,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:34:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2018-12-09 10:34:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:34:44,266 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:44,266 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:44,267 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:44,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:44,267 INFO L82 PathProgramCache]: Analyzing trace with hash 656576115, now seen corresponding path program 1 times [2018-12-09 10:34:44,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:44,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:44,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,268 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:44,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:44,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:34:44,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:44,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:34:44,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:34:44,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:34:44,322 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 3 states. [2018-12-09 10:34:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:44,335 INFO L93 Difference]: Finished difference Result 235 states and 279 transitions. [2018-12-09 10:34:44,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:34:44,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 10:34:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:44,337 INFO L225 Difference]: With dead ends: 235 [2018-12-09 10:34:44,337 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:34:44,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:34:44,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:34:44,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:34:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:34:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-12-09 10:34:44,346 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 47 [2018-12-09 10:34:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:44,346 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-12-09 10:34:44,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:34:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-12-09 10:34:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:34:44,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:44,347 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:44,347 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:44,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:44,348 INFO L82 PathProgramCache]: Analyzing trace with hash 779463730, now seen corresponding path program 1 times [2018-12-09 10:34:44,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:44,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:44,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,349 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:44,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:44,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:34:44,403 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:44,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:34:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:34:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:34:44,404 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 7 states. [2018-12-09 10:34:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:44,582 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2018-12-09 10:34:44,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:34:44,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 10:34:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:44,584 INFO L225 Difference]: With dead ends: 244 [2018-12-09 10:34:44,584 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:34:44,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:34:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:34:44,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:34:44,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:34:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2018-12-09 10:34:44,595 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 51 [2018-12-09 10:34:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:44,596 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2018-12-09 10:34:44,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:34:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2018-12-09 10:34:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-09 10:34:44,598 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:44,598 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:44,598 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:44,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:44,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1483960229, now seen corresponding path program 1 times [2018-12-09 10:34:44,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:44,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:44,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:44,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:44,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:34:44,671 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:44,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:34:44,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:34:44,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:34:44,672 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 5 states. [2018-12-09 10:34:44,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:44,967 INFO L93 Difference]: Finished difference Result 346 states and 421 transitions. [2018-12-09 10:34:44,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:34:44,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-12-09 10:34:44,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:44,968 INFO L225 Difference]: With dead ends: 346 [2018-12-09 10:34:44,968 INFO L226 Difference]: Without dead ends: 236 [2018-12-09 10:34:44,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:34:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-12-09 10:34:44,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 218. [2018-12-09 10:34:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-12-09 10:34:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 248 transitions. [2018-12-09 10:34:44,984 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 248 transitions. Word has length 69 [2018-12-09 10:34:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:44,984 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 248 transitions. [2018-12-09 10:34:44,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:34:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 248 transitions. [2018-12-09 10:34:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 10:34:44,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:44,986 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:44,986 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:44,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:44,986 INFO L82 PathProgramCache]: Analyzing trace with hash -618876534, now seen corresponding path program 1 times [2018-12-09 10:34:44,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:44,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:44,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:44,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:45,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:45,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:34:45,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:45,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:34:45,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:34:45,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:34:45,059 INFO L87 Difference]: Start difference. First operand 218 states and 248 transitions. Second operand 6 states. [2018-12-09 10:34:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:45,179 INFO L93 Difference]: Finished difference Result 591 states and 694 transitions. [2018-12-09 10:34:45,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:34:45,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-09 10:34:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:45,182 INFO L225 Difference]: With dead ends: 591 [2018-12-09 10:34:45,182 INFO L226 Difference]: Without dead ends: 397 [2018-12-09 10:34:45,183 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 10:34:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-12-09 10:34:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 391. [2018-12-09 10:34:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-12-09 10:34:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 446 transitions. [2018-12-09 10:34:45,204 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 446 transitions. Word has length 83 [2018-12-09 10:34:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:45,205 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 446 transitions. [2018-12-09 10:34:45,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:34:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 446 transitions. [2018-12-09 10:34:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-09 10:34:45,206 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:45,206 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:45,206 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:45,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:45,206 INFO L82 PathProgramCache]: Analyzing trace with hash -765360338, now seen corresponding path program 1 times [2018-12-09 10:34:45,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:45,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:45,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:45,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:45,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:34:45,285 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:45,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:34:45,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:34:45,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:34:45,286 INFO L87 Difference]: Start difference. First operand 391 states and 446 transitions. Second operand 7 states. [2018-12-09 10:34:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:45,594 INFO L93 Difference]: Finished difference Result 424 states and 496 transitions. [2018-12-09 10:34:45,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 10:34:45,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2018-12-09 10:34:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:45,596 INFO L225 Difference]: With dead ends: 424 [2018-12-09 10:34:45,596 INFO L226 Difference]: Without dead ends: 421 [2018-12-09 10:34:45,597 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 10:34:45,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2018-12-09 10:34:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 391. [2018-12-09 10:34:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-12-09 10:34:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2018-12-09 10:34:45,618 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 87 [2018-12-09 10:34:45,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:45,619 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2018-12-09 10:34:45,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:34:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2018-12-09 10:34:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 10:34:45,620 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:45,620 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:45,620 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:45,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:45,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2023673667, now seen corresponding path program 1 times [2018-12-09 10:34:45,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:45,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:45,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,622 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:45,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:45,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:34:45,674 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:45,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:34:45,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:34:45,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:34:45,675 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 6 states. [2018-12-09 10:34:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:45,704 INFO L93 Difference]: Finished difference Result 768 states and 888 transitions. [2018-12-09 10:34:45,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:34:45,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-12-09 10:34:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:45,706 INFO L225 Difference]: With dead ends: 768 [2018-12-09 10:34:45,707 INFO L226 Difference]: Without dead ends: 401 [2018-12-09 10:34:45,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:34:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-12-09 10:34:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2018-12-09 10:34:45,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2018-12-09 10:34:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 455 transitions. [2018-12-09 10:34:45,725 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 455 transitions. Word has length 88 [2018-12-09 10:34:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:45,725 INFO L480 AbstractCegarLoop]: Abstraction has 401 states and 455 transitions. [2018-12-09 10:34:45,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:34:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 455 transitions. [2018-12-09 10:34:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 10:34:45,726 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:45,727 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:45,727 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:45,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:45,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1996534015, now seen corresponding path program 1 times [2018-12-09 10:34:45,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:45,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:45,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,728 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:45,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:45,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:34:45,791 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:45,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:34:45,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:34:45,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:34:45,791 INFO L87 Difference]: Start difference. First operand 401 states and 455 transitions. Second operand 8 states. [2018-12-09 10:34:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:45,821 INFO L93 Difference]: Finished difference Result 792 states and 924 transitions. [2018-12-09 10:34:45,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:34:45,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2018-12-09 10:34:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:45,822 INFO L225 Difference]: With dead ends: 792 [2018-12-09 10:34:45,822 INFO L226 Difference]: Without dead ends: 415 [2018-12-09 10:34:45,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:34:45,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-12-09 10:34:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 409. [2018-12-09 10:34:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-12-09 10:34:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 463 transitions. [2018-12-09 10:34:45,835 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 463 transitions. Word has length 88 [2018-12-09 10:34:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:45,835 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 463 transitions. [2018-12-09 10:34:45,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:34:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 463 transitions. [2018-12-09 10:34:45,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 10:34:45,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:45,836 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:45,836 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:45,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:45,836 INFO L82 PathProgramCache]: Analyzing trace with hash -46233760, now seen corresponding path program 1 times [2018-12-09 10:34:45,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:45,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:45,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:45,837 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:34:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:34:45,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:34:45,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:34:45,890 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:34:45,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:34:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:34:45,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:34:45,891 INFO L87 Difference]: Start difference. First operand 409 states and 463 transitions. Second operand 4 states. [2018-12-09 10:34:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:34:46,007 INFO L93 Difference]: Finished difference Result 1241 states and 1482 transitions. [2018-12-09 10:34:46,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:34:46,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-12-09 10:34:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:34:46,011 INFO L225 Difference]: With dead ends: 1241 [2018-12-09 10:34:46,011 INFO L226 Difference]: Without dead ends: 856 [2018-12-09 10:34:46,012 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:34:46,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2018-12-09 10:34:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 543. [2018-12-09 10:34:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2018-12-09 10:34:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 610 transitions. [2018-12-09 10:34:46,036 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 610 transitions. Word has length 88 [2018-12-09 10:34:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:34:46,036 INFO L480 AbstractCegarLoop]: Abstraction has 543 states and 610 transitions. [2018-12-09 10:34:46,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:34:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 610 transitions. [2018-12-09 10:34:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-09 10:34:46,038 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:34:46,038 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:34:46,038 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:34:46,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:34:46,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2145661734, now seen corresponding path program 1 times [2018-12-09 10:34:46,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:34:46,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:46,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:34:46,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:34:46,039 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:34:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:34:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:34:46,123 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:34:46,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:34:46 BoogieIcfgContainer [2018-12-09 10:34:46,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:34:46,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:34:46,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:34:46,221 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:34:46,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:34:43" (3/4) ... [2018-12-09 10:34:46,223 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:34:46,307 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_11bb23c0-5840-4010-b652-d103054c2c3e/bin-2019/utaipan/witness.graphml [2018-12-09 10:34:46,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:34:46,307 INFO L168 Benchmark]: Toolchain (without parser) took 3009.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 948.1 MB in the beginning and 1.0 GB in the end (delta: -64.5 MB). Peak memory consumption was 100.2 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,308 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:34:46,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.20 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. [2018-12-09 10:34:46,309 INFO L168 Benchmark]: Boogie Preprocessor took 22.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,309 INFO L168 Benchmark]: RCFGBuilder took 336.16 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,309 INFO L168 Benchmark]: TraceAbstraction took 2237.02 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 105.0 kB). Peak memory consumption was 56.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,309 INFO L168 Benchmark]: Witness Printer took 86.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:34:46,310 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.20 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 22.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 336.16 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2237.02 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 105.0 kB). Peak memory consumption was 56.7 MB. Max. memory is 11.5 GB. * Witness Printer took 86.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L787] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L799] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L809] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L809] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L830] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L568] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L958] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L595] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L599] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L634] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L576] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L73] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 156 locations, 1 error locations. UNSAFE Result, 2.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1550 SDtfs, 859 SDslu, 3254 SDs, 0 SdLazy, 1080 SolverSat, 245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 739 NumberOfCodeBlocks, 739 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...