./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 858ae6ce02a6182d965089435301193a306a5587 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-29 21:05:46,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:05:46,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:05:46,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:05:46,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:05:46,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:05:46,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:05:46,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:05:46,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:05:46,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:05:46,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:05:46,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:05:46,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:05:46,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:05:46,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:05:46,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:05:46,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:05:46,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:05:46,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:05:46,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:05:46,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:05:46,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:05:46,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:05:46,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:05:46,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:05:46,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:05:46,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:05:46,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:05:46,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:05:46,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:05:46,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:05:46,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:05:46,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:05:46,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:05:46,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:05:46,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:05:46,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:05:46,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:05:46,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:05:46,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:05:46,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:05:46,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:05:46,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:05:46,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:05:46,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:05:46,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:05:46,713 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:05:46,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:05:46,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:05:46,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:05:46,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:05:46,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:05:46,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:05:46,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:05:46,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:05:46,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:05:46,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:05:46,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:05:46,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:05:46,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:05:46,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:05:46,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:05:46,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:05:46,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:05:46,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:05:46,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:05:46,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:05:46,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:05:46,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:05:46,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:05:46,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:05:46,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2020-11-29 21:05:47,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:05:47,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:05:47,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:05:47,053 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:05:47,055 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:05:47,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-29 21:05:47,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/data/d6ffdcf50/3c6c2aded2824b5c9293e95618e7a553/FLAGf0673183e [2020-11-29 21:05:47,781 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:05:47,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-11-29 21:05:47,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/data/d6ffdcf50/3c6c2aded2824b5c9293e95618e7a553/FLAGf0673183e [2020-11-29 21:05:48,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/data/d6ffdcf50/3c6c2aded2824b5c9293e95618e7a553 [2020-11-29 21:05:48,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:05:48,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:05:48,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:05:48,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:05:48,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:05:48,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147ee14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48, skipping insertion in model container [2020-11-29 21:05:48,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:05:48,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:05:48,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:05:48,516 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:05:48,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:05:48,627 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:05:48,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48 WrapperNode [2020-11-29 21:05:48,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:05:48,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:05:48,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:05:48,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:05:48,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:05:48,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:05:48,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:05:48,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:05:48,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... [2020-11-29 21:05:48,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:05:48,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:05:48,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:05:48,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:05:48,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/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 [2020-11-29 21:05:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:05:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:05:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:05:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:05:49,891 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:05:49,892 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-29 21:05:49,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:05:49 BoogieIcfgContainer [2020-11-29 21:05:49,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:05:49,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:05:49,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:05:49,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:05:49,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:05:48" (1/3) ... [2020-11-29 21:05:49,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b4cfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:05:49, skipping insertion in model container [2020-11-29 21:05:49,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:05:48" (2/3) ... [2020-11-29 21:05:49,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b4cfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:05:49, skipping insertion in model container [2020-11-29 21:05:49,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:05:49" (3/3) ... [2020-11-29 21:05:49,903 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-11-29 21:05:49,914 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:05:49,919 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 21:05:49,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 21:05:49,954 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:05:49,954 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:05:49,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:05:49,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:05:49,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:05:49,955 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:05:49,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:05:49,956 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:05:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-11-29 21:05:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:05:49,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:49,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:05:49,981 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:49,987 INFO L82 PathProgramCache]: Analyzing trace with hash 339537202, now seen corresponding path program 1 times [2020-11-29 21:05:49,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:49,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992774413] [2020-11-29 21:05:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:50,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992774413] [2020-11-29 21:05:50,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:50,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:05:50,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197169485] [2020-11-29 21:05:50,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:05:50,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:50,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:05:50,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:05:50,259 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-11-29 21:05:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:50,286 INFO L93 Difference]: Finished difference Result 164 states and 249 transitions. [2020-11-29 21:05:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:05:50,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 21:05:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:50,298 INFO L225 Difference]: With dead ends: 164 [2020-11-29 21:05:50,299 INFO L226 Difference]: Without dead ends: 80 [2020-11-29 21:05:50,302 INFO L677 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 [2020-11-29 21:05:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-29 21:05:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-29 21:05:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-29 21:05:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-11-29 21:05:50,343 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2020-11-29 21:05:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:50,344 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-11-29 21:05:50,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:05:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-11-29 21:05:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:05:50,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:50,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:05:50,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:05:50,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:50,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:50,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1884723747, now seen corresponding path program 1 times [2020-11-29 21:05:50,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:50,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092940398] [2020-11-29 21:05:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:50,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092940398] [2020-11-29 21:05:50,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:50,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:05:50,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959132964] [2020-11-29 21:05:50,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:05:50,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:50,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:05:50,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:50,461 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2020-11-29 21:05:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:50,483 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-11-29 21:05:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:05:50,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 21:05:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:50,489 INFO L225 Difference]: With dead ends: 80 [2020-11-29 21:05:50,490 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 21:05:50,491 INFO L677 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 [2020-11-29 21:05:50,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 21:05:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 21:05:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 21:05:50,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-11-29 21:05:50,502 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-11-29 21:05:50,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:50,504 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-11-29 21:05:50,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:05:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-11-29 21:05:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 21:05:50,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:50,508 INFO L422 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] [2020-11-29 21:05:50,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:05:50,509 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2020-11-29 21:05:50,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:50,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072904240] [2020-11-29 21:05:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:50,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:50,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072904240] [2020-11-29 21:05:50,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:50,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:05:50,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557532584] [2020-11-29 21:05:50,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:05:50,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:50,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:05:50,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:50,667 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2020-11-29 21:05:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:50,692 INFO L93 Difference]: Finished difference Result 100 states and 148 transitions. [2020-11-29 21:05:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:05:50,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 21:05:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:50,697 INFO L225 Difference]: With dead ends: 100 [2020-11-29 21:05:50,697 INFO L226 Difference]: Without dead ends: 69 [2020-11-29 21:05:50,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-29 21:05:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-11-29 21:05:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 21:05:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2020-11-29 21:05:50,721 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 24 [2020-11-29 21:05:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:50,722 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2020-11-29 21:05:50,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:05:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2020-11-29 21:05:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 21:05:50,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:50,725 INFO L422 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] [2020-11-29 21:05:50,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:05:50,725 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:50,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:50,726 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2020-11-29 21:05:50,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:50,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187094385] [2020-11-29 21:05:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:50,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187094385] [2020-11-29 21:05:50,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:50,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:05:50,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598290235] [2020-11-29 21:05:50,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:05:50,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:50,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:05:50,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:50,844 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand 3 states. [2020-11-29 21:05:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:50,907 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2020-11-29 21:05:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:05:50,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 21:05:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:50,910 INFO L225 Difference]: With dead ends: 166 [2020-11-29 21:05:50,910 INFO L226 Difference]: Without dead ends: 108 [2020-11-29 21:05:50,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:50,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-29 21:05:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-11-29 21:05:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 21:05:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 156 transitions. [2020-11-29 21:05:50,934 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 156 transitions. Word has length 25 [2020-11-29 21:05:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:50,935 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 156 transitions. [2020-11-29 21:05:50,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:05:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 156 transitions. [2020-11-29 21:05:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 21:05:50,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:50,939 INFO L422 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] [2020-11-29 21:05:50,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:05:50,940 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:50,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2020-11-29 21:05:50,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:50,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64725099] [2020-11-29 21:05:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:51,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64725099] [2020-11-29 21:05:51,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:51,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:05:51,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943861558] [2020-11-29 21:05:51,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:05:51,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:51,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:05:51,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:05:51,056 INFO L87 Difference]: Start difference. First operand 106 states and 156 transitions. Second operand 5 states. [2020-11-29 21:05:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:51,203 INFO L93 Difference]: Finished difference Result 510 states and 765 transitions. [2020-11-29 21:05:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 21:05:51,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-29 21:05:51,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:51,210 INFO L225 Difference]: With dead ends: 510 [2020-11-29 21:05:51,210 INFO L226 Difference]: Without dead ends: 411 [2020-11-29 21:05:51,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 21:05:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-29 21:05:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 191. [2020-11-29 21:05:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-11-29 21:05:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 276 transitions. [2020-11-29 21:05:51,259 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 276 transitions. Word has length 27 [2020-11-29 21:05:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:51,260 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 276 transitions. [2020-11-29 21:05:51,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:05:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 276 transitions. [2020-11-29 21:05:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 21:05:51,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:51,265 INFO L422 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] [2020-11-29 21:05:51,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:05:51,265 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2020-11-29 21:05:51,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:51,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313406469] [2020-11-29 21:05:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:51,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313406469] [2020-11-29 21:05:51,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:51,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:05:51,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120654624] [2020-11-29 21:05:51,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:05:51,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:51,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:05:51,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:05:51,367 INFO L87 Difference]: Start difference. First operand 191 states and 276 transitions. Second operand 5 states. [2020-11-29 21:05:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:51,575 INFO L93 Difference]: Finished difference Result 709 states and 1031 transitions. [2020-11-29 21:05:51,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 21:05:51,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-29 21:05:51,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:51,580 INFO L225 Difference]: With dead ends: 709 [2020-11-29 21:05:51,580 INFO L226 Difference]: Without dead ends: 525 [2020-11-29 21:05:51,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 21:05:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-11-29 21:05:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 189. [2020-11-29 21:05:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-29 21:05:51,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 270 transitions. [2020-11-29 21:05:51,619 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 270 transitions. Word has length 28 [2020-11-29 21:05:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:51,622 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 270 transitions. [2020-11-29 21:05:51,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:05:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 270 transitions. [2020-11-29 21:05:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 21:05:51,628 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:51,628 INFO L422 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] [2020-11-29 21:05:51,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:05:51,628 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:51,629 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2020-11-29 21:05:51,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:51,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58048256] [2020-11-29 21:05:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:51,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58048256] [2020-11-29 21:05:51,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:51,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:05:51,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043074741] [2020-11-29 21:05:51,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:05:51,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:51,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:05:51,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:05:51,702 INFO L87 Difference]: Start difference. First operand 189 states and 270 transitions. Second operand 5 states. [2020-11-29 21:05:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:51,788 INFO L93 Difference]: Finished difference Result 515 states and 728 transitions. [2020-11-29 21:05:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:05:51,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 21:05:51,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:51,791 INFO L225 Difference]: With dead ends: 515 [2020-11-29 21:05:51,791 INFO L226 Difference]: Without dead ends: 333 [2020-11-29 21:05:51,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:05:51,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-11-29 21:05:51,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 201. [2020-11-29 21:05:51,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-29 21:05:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2020-11-29 21:05:51,815 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 32 [2020-11-29 21:05:51,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:51,815 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2020-11-29 21:05:51,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:05:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2020-11-29 21:05:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 21:05:51,816 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:51,817 INFO L422 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] [2020-11-29 21:05:51,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 21:05:51,817 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:51,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:51,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2020-11-29 21:05:51,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:51,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420955885] [2020-11-29 21:05:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:51,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420955885] [2020-11-29 21:05:51,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:51,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:05:51,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190956957] [2020-11-29 21:05:51,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:05:51,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:51,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:05:51,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:05:51,894 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand 5 states. [2020-11-29 21:05:52,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:52,018 INFO L93 Difference]: Finished difference Result 583 states and 802 transitions. [2020-11-29 21:05:52,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 21:05:52,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 21:05:52,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:52,022 INFO L225 Difference]: With dead ends: 583 [2020-11-29 21:05:52,022 INFO L226 Difference]: Without dead ends: 389 [2020-11-29 21:05:52,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 21:05:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-11-29 21:05:52,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 209. [2020-11-29 21:05:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-29 21:05:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2020-11-29 21:05:52,044 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 32 [2020-11-29 21:05:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:52,045 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2020-11-29 21:05:52,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:05:52,047 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2020-11-29 21:05:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 21:05:52,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:52,047 INFO L422 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] [2020-11-29 21:05:52,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 21:05:52,049 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:52,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2020-11-29 21:05:52,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:52,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498401489] [2020-11-29 21:05:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:52,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498401489] [2020-11-29 21:05:52,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:52,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:05:52,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546706520] [2020-11-29 21:05:52,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:05:52,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:52,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:05:52,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:52,115 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand 3 states. [2020-11-29 21:05:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:52,160 INFO L93 Difference]: Finished difference Result 511 states and 703 transitions. [2020-11-29 21:05:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:05:52,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-29 21:05:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:52,163 INFO L225 Difference]: With dead ends: 511 [2020-11-29 21:05:52,164 INFO L226 Difference]: Without dead ends: 309 [2020-11-29 21:05:52,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-29 21:05:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-11-29 21:05:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-29 21:05:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2020-11-29 21:05:52,208 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 412 transitions. Word has length 32 [2020-11-29 21:05:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:52,209 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 412 transitions. [2020-11-29 21:05:52,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:05:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2020-11-29 21:05:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 21:05:52,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:52,211 INFO L422 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] [2020-11-29 21:05:52,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 21:05:52,212 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:52,212 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2020-11-29 21:05:52,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:52,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286979676] [2020-11-29 21:05:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:05:52,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:05:52,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286979676] [2020-11-29 21:05:52,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:05:52,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:05:52,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190694423] [2020-11-29 21:05:52,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 21:05:52,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:05:52,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 21:05:52,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 21:05:52,297 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand 3 states. [2020-11-29 21:05:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:05:52,354 INFO L93 Difference]: Finished difference Result 447 states and 603 transitions. [2020-11-29 21:05:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:05:52,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-29 21:05:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:05:52,359 INFO L225 Difference]: With dead ends: 447 [2020-11-29 21:05:52,359 INFO L226 Difference]: Without dead ends: 445 [2020-11-29 21:05:52,360 INFO L677 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 [2020-11-29 21:05:52,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-11-29 21:05:52,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 370. [2020-11-29 21:05:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-11-29 21:05:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 504 transitions. [2020-11-29 21:05:52,395 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 504 transitions. Word has length 33 [2020-11-29 21:05:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:05:52,395 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 504 transitions. [2020-11-29 21:05:52,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 21:05:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 504 transitions. [2020-11-29 21:05:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 21:05:52,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:05:52,397 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-29 21:05:52,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 21:05:52,398 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:05:52,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:05:52,398 INFO L82 PathProgramCache]: Analyzing trace with hash 828573398, now seen corresponding path program 1 times [2020-11-29 21:05:52,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:05:52,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107884623] [2020-11-29 21:05:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:05:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:05:52,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:05:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:05:52,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:05:52,613 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:05:52,613 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:05:52,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 21:05:52,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:05:52 BoogieIcfgContainer [2020-11-29 21:05:52,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:05:52,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:05:52,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:05:52,789 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:05:52,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:05:49" (3/4) ... [2020-11-29 21:05:52,791 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:05:52,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e1af48a-47e4-4492-ba9a-fc975c9af1b0/bin/uautomizer/witness.graphml [2020-11-29 21:05:52,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:05:52,959 INFO L168 Benchmark]: Toolchain (without parser) took 4899.49 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 82.7 MB in the beginning and 89.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,959 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:05:52,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.38 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 79.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.23 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 75.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,961 INFO L168 Benchmark]: Boogie Preprocessor took 37.22 ms. Allocated memory is still 113.2 MB. Free memory was 75.9 MB in the beginning and 73.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,961 INFO L168 Benchmark]: RCFGBuilder took 1143.70 ms. Allocated memory is still 113.2 MB. Free memory was 73.4 MB in the beginning and 57.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,961 INFO L168 Benchmark]: TraceAbstraction took 2892.13 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 57.9 MB in the beginning and 31.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,962 INFO L168 Benchmark]: Witness Printer took 168.55 ms. Allocated memory is still 136.3 MB. Free memory was 31.7 MB in the beginning and 89.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:05:52,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.38 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 79.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.23 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 75.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.22 ms. Allocated memory is still 113.2 MB. Free memory was 75.9 MB in the beginning and 73.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1143.70 ms. Allocated memory is still 113.2 MB. Free memory was 73.4 MB in the beginning and 57.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2892.13 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 57.9 MB in the beginning and 31.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. * Witness Printer took 168.55 ms. Allocated memory is still 136.3 MB. Free memory was 31.7 MB in the beginning and 89.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] tmp = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] COND FALSE !(\read(methaneLevelCritical)) [L874] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L924] COND FALSE !(waterLevel < 2) [L928] retValue_acc = 0 [L929] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isHighWaterSensorDry() [L560] COND FALSE !(\read(tmp)) [L563] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] tmp = isHighWaterLevel() [L462] COND TRUE \read(tmp) [L483] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L679] COND FALSE !(\read(methAndRunningLastTime)) [L684] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] COND TRUE waterLevel > 0 [L848] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L458] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L679] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 883 SDslu, 1066 SDs, 0 SdLazy, 124 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 949 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 15416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...