./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42_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_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-01 13:26:46,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 13:26:46,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 13:26:46,604 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 13:26:46,605 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 13:26:46,605 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 13:26:46,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 13:26:46,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 13:26:46,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 13:26:46,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 13:26:46,608 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 13:26:46,608 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 13:26:46,609 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 13:26:46,609 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 13:26:46,610 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 13:26:46,610 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 13:26:46,611 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 13:26:46,612 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 13:26:46,613 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 13:26:46,613 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 13:26:46,614 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 13:26:46,615 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 13:26:46,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 13:26:46,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 13:26:46,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 13:26:46,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 13:26:46,617 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 13:26:46,617 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 13:26:46,618 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 13:26:46,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 13:26:46,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 13:26:46,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 13:26:46,619 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 13:26:46,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 13:26:46,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 13:26:46,620 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 13:26:46,620 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 13:26:46,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 13:26:46,627 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 13:26:46,628 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 13:26:46,628 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 13:26:46,628 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 13:26:46,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 13:26:46,629 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 13:26:46,630 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 13:26:46,630 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 13:26:46,631 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 13:26:46,631 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 13:26:46,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 13:26:46,632 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer 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 -> Automizer 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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2018-12-01 13:26:46,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 13:26:46,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 13:26:46,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 13:26:46,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 13:26:46,663 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 13:26:46,664 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-01 13:26:46,701 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/data/79ca9a0ae/cd1bcc62bcf64f1eab9f44268274962d/FLAG7f4c7a9b5 [2018-12-01 13:26:47,140 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 13:26:47,140 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/sv-benchmarks/c/product-lines/minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-01 13:26:47,146 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/data/79ca9a0ae/cd1bcc62bcf64f1eab9f44268274962d/FLAG7f4c7a9b5 [2018-12-01 13:26:47,154 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/data/79ca9a0ae/cd1bcc62bcf64f1eab9f44268274962d [2018-12-01 13:26:47,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 13:26:47,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 13:26:47,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 13:26:47,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 13:26:47,159 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 13:26:47,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47, skipping insertion in model container [2018-12-01 13:26:47,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 13:26:47,186 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 13:26:47,329 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:26:47,369 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 13:26:47,424 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:26:47,440 INFO L195 MainTranslator]: Completed translation [2018-12-01 13:26:47,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47 WrapperNode [2018-12-01 13:26:47,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 13:26:47,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 13:26:47,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 13:26:47,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 13:26:47,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 13:26:47,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 13:26:47,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 13:26:47,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 13:26:47,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... [2018-12-01 13:26:47,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 13:26:47,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 13:26:47,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 13:26:47,485 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 13:26:47,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/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 [2018-12-01 13:26:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-01 13:26:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-01 13:26:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-01 13:26:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-01 13:26:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 13:26:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 13:26:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 13:26:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-01 13:26:47,518 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-01 13:26:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-01 13:26:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-01 13:26:47,519 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 13:26:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 13:26:47,520 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-01 13:26:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-01 13:26:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-01 13:26:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-01 13:26:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 13:26:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 13:26:47,867 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 13:26:47,867 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-01 13:26:47,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:26:47 BoogieIcfgContainer [2018-12-01 13:26:47,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 13:26:47,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 13:26:47,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 13:26:47,871 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 13:26:47,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:26:47" (1/3) ... [2018-12-01 13:26:47,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a070c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:26:47, skipping insertion in model container [2018-12-01 13:26:47,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:26:47" (2/3) ... [2018-12-01 13:26:47,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a070c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:26:47, skipping insertion in model container [2018-12-01 13:26:47,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:26:47" (3/3) ... [2018-12-01 13:26:47,874 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42_false-unreach-call_false-termination.cil.c [2018-12-01 13:26:47,882 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 13:26:47,889 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 13:26:47,902 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 13:26:47,926 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 13:26:47,927 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 13:26:47,927 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 13:26:47,927 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 13:26:47,927 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 13:26:47,927 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 13:26:47,927 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 13:26:47,928 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 13:26:47,928 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 13:26:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2018-12-01 13:26:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-01 13:26:47,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:47,949 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] [2018-12-01 13:26:47,951 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:47,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:47,956 INFO L82 PathProgramCache]: Analyzing trace with hash 725583522, now seen corresponding path program 1 times [2018-12-01 13:26:47,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:47,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:47,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:47,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:47,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:48,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:26:48,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 13:26:48,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 13:26:48,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 13:26:48,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 13:26:48,118 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2018-12-01 13:26:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:48,141 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2018-12-01 13:26:48,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 13:26:48,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-01 13:26:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:48,148 INFO L225 Difference]: With dead ends: 248 [2018-12-01 13:26:48,148 INFO L226 Difference]: Without dead ends: 124 [2018-12-01 13:26:48,151 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 [2018-12-01 13:26:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-01 13:26:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-01 13:26:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-01 13:26:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2018-12-01 13:26:48,181 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 46 [2018-12-01 13:26:48,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:48,181 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2018-12-01 13:26:48,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 13:26:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2018-12-01 13:26:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-01 13:26:48,183 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:48,183 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] [2018-12-01 13:26:48,183 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:48,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:48,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1204619908, now seen corresponding path program 1 times [2018-12-01 13:26:48,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:48,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:48,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:48,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:48,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:26:48,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 13:26:48,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 13:26:48,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 13:26:48,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:26:48,240 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 3 states. [2018-12-01 13:26:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:48,252 INFO L93 Difference]: Finished difference Result 193 states and 221 transitions. [2018-12-01 13:26:48,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 13:26:48,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-01 13:26:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:48,253 INFO L225 Difference]: With dead ends: 193 [2018-12-01 13:26:48,253 INFO L226 Difference]: Without dead ends: 115 [2018-12-01 13:26:48,254 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 [2018-12-01 13:26:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-01 13:26:48,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-01 13:26:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-01 13:26:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2018-12-01 13:26:48,261 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 47 [2018-12-01 13:26:48,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:48,261 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2018-12-01 13:26:48,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 13:26:48,261 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2018-12-01 13:26:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-01 13:26:48,262 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:48,262 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:48,262 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:48,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:48,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1235546249, now seen corresponding path program 1 times [2018-12-01 13:26:48,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:48,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:48,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:48,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:48,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:26:48,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 13:26:48,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 13:26:48,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 13:26:48,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-01 13:26:48,336 INFO L87 Difference]: Start difference. First operand 115 states and 131 transitions. Second operand 7 states. [2018-12-01 13:26:48,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:48,477 INFO L93 Difference]: Finished difference Result 206 states and 239 transitions. [2018-12-01 13:26:48,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 13:26:48,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-01 13:26:48,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:48,479 INFO L225 Difference]: With dead ends: 206 [2018-12-01 13:26:48,479 INFO L226 Difference]: Without dead ends: 115 [2018-12-01 13:26:48,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-01 13:26:48,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-01 13:26:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-01 13:26:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-01 13:26:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2018-12-01 13:26:48,490 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 52 [2018-12-01 13:26:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:48,490 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2018-12-01 13:26:48,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 13:26:48,490 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2018-12-01 13:26:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-01 13:26:48,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:48,492 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] [2018-12-01 13:26:48,492 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:48,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:48,492 INFO L82 PathProgramCache]: Analyzing trace with hash 2032861656, now seen corresponding path program 1 times [2018-12-01 13:26:48,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:48,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:48,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:48,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:48,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:26:48,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 13:26:48,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 13:26:48,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 13:26:48,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 13:26:48,554 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 5 states. [2018-12-01 13:26:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:48,810 INFO L93 Difference]: Finished difference Result 296 states and 351 transitions. [2018-12-01 13:26:48,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 13:26:48,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2018-12-01 13:26:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:48,812 INFO L225 Difference]: With dead ends: 296 [2018-12-01 13:26:48,812 INFO L226 Difference]: Without dead ends: 205 [2018-12-01 13:26:48,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-01 13:26:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-12-01 13:26:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 186. [2018-12-01 13:26:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-12-01 13:26:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2018-12-01 13:26:48,834 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 60 [2018-12-01 13:26:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:48,835 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2018-12-01 13:26:48,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 13:26:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2018-12-01 13:26:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-01 13:26:48,837 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:48,837 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] [2018-12-01 13:26:48,837 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:48,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash -265244856, now seen corresponding path program 1 times [2018-12-01 13:26:48,838 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:48,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:48,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:48,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:48,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:26:48,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-01 13:26:48,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 13:26:48,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 13:26:48,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-01 13:26:48,939 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 10 states. [2018-12-01 13:26:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:49,253 INFO L93 Difference]: Finished difference Result 609 states and 748 transitions. [2018-12-01 13:26:49,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 13:26:49,253 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2018-12-01 13:26:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:49,256 INFO L225 Difference]: With dead ends: 609 [2018-12-01 13:26:49,256 INFO L226 Difference]: Without dead ends: 447 [2018-12-01 13:26:49,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-01 13:26:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-12-01 13:26:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 437. [2018-12-01 13:26:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-01 13:26:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 510 transitions. [2018-12-01 13:26:49,295 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 510 transitions. Word has length 74 [2018-12-01 13:26:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:49,295 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 510 transitions. [2018-12-01 13:26:49,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 13:26:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 510 transitions. [2018-12-01 13:26:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-01 13:26:49,297 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:49,297 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:49,297 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:49,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:49,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2039702425, now seen corresponding path program 1 times [2018-12-01 13:26:49,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:49,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:49,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-01 13:26:49,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 13:26:49,339 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 13:26:49,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:26:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-01 13:26:49,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 13:26:49,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2018-12-01 13:26:49,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 13:26:49,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 13:26:49,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 13:26:49,475 INFO L87 Difference]: Start difference. First operand 437 states and 510 transitions. Second operand 6 states. [2018-12-01 13:26:49,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:49,517 INFO L93 Difference]: Finished difference Result 871 states and 1046 transitions. [2018-12-01 13:26:49,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 13:26:49,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-12-01 13:26:49,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:49,520 INFO L225 Difference]: With dead ends: 871 [2018-12-01 13:26:49,520 INFO L226 Difference]: Without dead ends: 458 [2018-12-01 13:26:49,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-01 13:26:49,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2018-12-01 13:26:49,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 452. [2018-12-01 13:26:49,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-12-01 13:26:49,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 526 transitions. [2018-12-01 13:26:49,538 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 526 transitions. Word has length 126 [2018-12-01 13:26:49,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:49,538 INFO L480 AbstractCegarLoop]: Abstraction has 452 states and 526 transitions. [2018-12-01 13:26:49,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 13:26:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 526 transitions. [2018-12-01 13:26:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-12-01 13:26:49,539 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:49,540 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:49,540 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:49,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:49,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2015025125, now seen corresponding path program 1 times [2018-12-01 13:26:49,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:49,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:49,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-01 13:26:49,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 13:26:49,602 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 13:26:49,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:26:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-01 13:26:49,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 13:26:49,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2018-12-01 13:26:49,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 13:26:49,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 13:26:49,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-01 13:26:49,739 INFO L87 Difference]: Start difference. First operand 452 states and 526 transitions. Second operand 11 states. [2018-12-01 13:26:49,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:49,767 INFO L93 Difference]: Finished difference Result 778 states and 928 transitions. [2018-12-01 13:26:49,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 13:26:49,768 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2018-12-01 13:26:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:49,769 INFO L225 Difference]: With dead ends: 778 [2018-12-01 13:26:49,769 INFO L226 Difference]: Without dead ends: 350 [2018-12-01 13:26:49,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-01 13:26:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-12-01 13:26:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2018-12-01 13:26:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-12-01 13:26:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 404 transitions. [2018-12-01 13:26:49,782 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 404 transitions. Word has length 126 [2018-12-01 13:26:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:49,782 INFO L480 AbstractCegarLoop]: Abstraction has 350 states and 404 transitions. [2018-12-01 13:26:49,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 13:26:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 404 transitions. [2018-12-01 13:26:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-12-01 13:26:49,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:49,784 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:49,784 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:49,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:49,785 INFO L82 PathProgramCache]: Analyzing trace with hash -178742886, now seen corresponding path program 1 times [2018-12-01 13:26:49,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:49,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:49,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-01 13:26:49,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 13:26:49,834 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 13:26:49,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:49,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:26:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:49,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 13:26:49,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2018-12-01 13:26:49,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 13:26:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 13:26:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-01 13:26:49,963 INFO L87 Difference]: Start difference. First operand 350 states and 404 transitions. Second operand 6 states. [2018-12-01 13:26:50,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:50,314 INFO L93 Difference]: Finished difference Result 725 states and 874 transitions. [2018-12-01 13:26:50,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 13:26:50,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-12-01 13:26:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:50,317 INFO L225 Difference]: With dead ends: 725 [2018-12-01 13:26:50,317 INFO L226 Difference]: Without dead ends: 455 [2018-12-01 13:26:50,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-12-01 13:26:50,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-12-01 13:26:50,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 409. [2018-12-01 13:26:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-12-01 13:26:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 477 transitions. [2018-12-01 13:26:50,336 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 477 transitions. Word has length 144 [2018-12-01 13:26:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:50,336 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 477 transitions. [2018-12-01 13:26:50,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 13:26:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 477 transitions. [2018-12-01 13:26:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-01 13:26:50,338 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:50,338 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:50,338 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:50,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:50,338 INFO L82 PathProgramCache]: Analyzing trace with hash -952817808, now seen corresponding path program 1 times [2018-12-01 13:26:50,339 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:50,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:50,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:50,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:50,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-01 13:26:50,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 13:26:50,405 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 13:26:50,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:50,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:26:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:50,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 13:26:50,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-12-01 13:26:50,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-01 13:26:50,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-01 13:26:50,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-01 13:26:50,586 INFO L87 Difference]: Start difference. First operand 409 states and 477 transitions. Second operand 13 states. [2018-12-01 13:26:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:51,885 INFO L93 Difference]: Finished difference Result 1007 states and 1271 transitions. [2018-12-01 13:26:51,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-01 13:26:51,886 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2018-12-01 13:26:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:51,888 INFO L225 Difference]: With dead ends: 1007 [2018-12-01 13:26:51,889 INFO L226 Difference]: Without dead ends: 680 [2018-12-01 13:26:51,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=382, Invalid=1688, Unknown=0, NotChecked=0, Total=2070 [2018-12-01 13:26:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-12-01 13:26:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 554. [2018-12-01 13:26:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-12-01 13:26:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 655 transitions. [2018-12-01 13:26:51,933 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 655 transitions. Word has length 128 [2018-12-01 13:26:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:51,934 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 655 transitions. [2018-12-01 13:26:51,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-01 13:26:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 655 transitions. [2018-12-01 13:26:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-01 13:26:51,935 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:51,935 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:51,936 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:51,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:51,936 INFO L82 PathProgramCache]: Analyzing trace with hash -182882218, now seen corresponding path program 1 times [2018-12-01 13:26:51,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:51,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:51,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:51,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:51,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 13:26:52,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 13:26:52,049 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 13:26:52,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:26:52,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:26:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:26:52,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 13:26:52,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-12-01 13:26:52,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-01 13:26:52,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-01 13:26:52,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-12-01 13:26:52,213 INFO L87 Difference]: Start difference. First operand 554 states and 655 transitions. Second operand 15 states. [2018-12-01 13:26:52,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:26:52,801 INFO L93 Difference]: Finished difference Result 1105 states and 1369 transitions. [2018-12-01 13:26:52,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-01 13:26:52,801 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 130 [2018-12-01 13:26:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:26:52,804 INFO L225 Difference]: With dead ends: 1105 [2018-12-01 13:26:52,805 INFO L226 Difference]: Without dead ends: 629 [2018-12-01 13:26:52,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2018-12-01 13:26:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2018-12-01 13:26:52,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 542. [2018-12-01 13:26:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2018-12-01 13:26:52,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 640 transitions. [2018-12-01 13:26:52,840 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 640 transitions. Word has length 130 [2018-12-01 13:26:52,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:26:52,841 INFO L480 AbstractCegarLoop]: Abstraction has 542 states and 640 transitions. [2018-12-01 13:26:52,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-01 13:26:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 640 transitions. [2018-12-01 13:26:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-12-01 13:26:52,843 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:26:52,843 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:26:52,843 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 13:26:52,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:26:52,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1603109824, now seen corresponding path program 2 times [2018-12-01 13:26:52,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:26:52,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:26:52,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:52,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:26:52,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:26:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:26:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:26:52,983 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 13:26:53,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:26:53 BoogieIcfgContainer [2018-12-01 13:26:53,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 13:26:53,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 13:26:53,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 13:26:53,108 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 13:26:53,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:26:47" (3/4) ... [2018-12-01 13:26:53,110 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 13:26:53,217 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6bc90e03-91f7-46d8-a626-2353caf9399a/bin-2019/uautomizer/witness.graphml [2018-12-01 13:26:53,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 13:26:53,218 INFO L168 Benchmark]: Toolchain (without parser) took 6061.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.4 MB). Free memory was 951.7 MB in the beginning and 861.5 MB in the end (delta: 90.2 MB). Peak memory consumption was 389.6 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: Boogie Preprocessor took 23.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: RCFGBuilder took 383.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,219 INFO L168 Benchmark]: TraceAbstraction took 5239.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 910.5 MB in the end (delta: 151.8 MB). Peak memory consumption was 323.8 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,220 INFO L168 Benchmark]: Witness Printer took 109.51 ms. Allocated memory is still 1.3 GB. Free memory was 910.5 MB in the beginning and 861.5 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. [2018-12-01 13:26:53,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 383.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5239.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 910.5 MB in the end (delta: 151.8 MB). Peak memory consumption was 323.8 MB. Max. memory is 11.5 GB. * Witness Printer took 109.51 ms. Allocated memory is still 1.3 GB. Free memory was 910.5 MB in the beginning and 861.5 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L649] int retValue_acc ; [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L654] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L656] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L660] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L661] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L695] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L899] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L783] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L787] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L812] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L841] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L816] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L822] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L806] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L822] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L787] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L764] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L728] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L683] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___2)) [L719] tmp___1 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L728] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L751] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L778] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L796] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L764] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L553] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L557] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L561] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 137 locations, 1 error locations. UNSAFE Result, 5.1s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1481 SDtfs, 2205 SDslu, 3849 SDs, 0 SdLazy, 4014 SolverSat, 1293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 825 GetRequests, 699 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 294 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1753 NumberOfCodeBlocks, 1753 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1572 ConstructedInterpolants, 0 QuantifiedInterpolants, 295938 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4114 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 296/328 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...