./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.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_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/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 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 03:14:08,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:08,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:09,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:09,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:09,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:09,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:09,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:09,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:09,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:09,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:09,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:09,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:09,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:09,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:09,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:09,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:09,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:09,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:09,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:09,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:09,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:09,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:09,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:09,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:09,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:09,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:09,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:09,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:09,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:09,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:09,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:09,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:09,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:09,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:09,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:09,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:09,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:09,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:09,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:09,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:09,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:09,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:09,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:09,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:09,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:09,133 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:09,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:09,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:09,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:09,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:09,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:09,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:09,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:09,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:09,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:09,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:09,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:09,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:09,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:09,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:09,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:09,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:09,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:09,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:09,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:09,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:09,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:09,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:09,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:09,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:09,139 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_d3d308be-958a-4243-b609-5c72b65a0975/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 [2020-11-28 03:14:09,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:09,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:09,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:09,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:09,442 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:09,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2020-11-28 03:14:09,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/data/f86c02498/ffb73bccb0034f1f8818c39dcf9e2cc6/FLAG507087d53 [2020-11-28 03:14:10,094 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:10,096 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2020-11-28 03:14:10,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/data/f86c02498/ffb73bccb0034f1f8818c39dcf9e2cc6/FLAG507087d53 [2020-11-28 03:14:10,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/data/f86c02498/ffb73bccb0034f1f8818c39dcf9e2cc6 [2020-11-28 03:14:10,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:10,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:14:10,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:10,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:10,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:10,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:10,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c91377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10, skipping insertion in model container [2020-11-28 03:14:10,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:10,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:10,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:10,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:10,801 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:10,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:10,938 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:10,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10 WrapperNode [2020-11-28 03:14:10,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:10,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:10,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:14:10,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:14:10,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:10,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:11,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:11,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:11,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:11,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... [2020-11-28 03:14:11,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:11,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:11,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:11,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:11,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/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 [2020-11-28 03:14:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:12,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:12,161 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-28 03:14:12,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:12 BoogieIcfgContainer [2020-11-28 03:14:12,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:12,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:12,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:12,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:12,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:10" (1/3) ... [2020-11-28 03:14:12,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16155f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:12, skipping insertion in model container [2020-11-28 03:14:12,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:10" (2/3) ... [2020-11-28 03:14:12,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16155f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:12, skipping insertion in model container [2020-11-28 03:14:12,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:12" (3/3) ... [2020-11-28 03:14:12,173 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2020-11-28 03:14:12,184 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:12,188 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:14:12,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:14:12,224 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:12,224 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:14:12,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:12,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:12,224 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:12,225 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:12,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:12,225 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-11-28 03:14:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:14:12,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:12,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:12,249 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:12,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:12,255 INFO L82 PathProgramCache]: Analyzing trace with hash -807964332, now seen corresponding path program 1 times [2020-11-28 03:14:12,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:12,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661744739] [2020-11-28 03:14:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:12,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661744739] [2020-11-28 03:14:12,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:12,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:12,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769441106] [2020-11-28 03:14:12,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:14:12,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:12,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:14:12,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:12,544 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2020-11-28 03:14:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:12,598 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2020-11-28 03:14:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:14:12,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:14:12,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:12,610 INFO L225 Difference]: With dead ends: 175 [2020-11-28 03:14:12,611 INFO L226 Difference]: Without dead ends: 85 [2020-11-28 03:14:12,614 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 [2020-11-28 03:14:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-28 03:14:12,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-28 03:14:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-28 03:14:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-11-28 03:14:12,656 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-11-28 03:14:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:12,657 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-11-28 03:14:12,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:14:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-11-28 03:14:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:14:12,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:12,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:12,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:12,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:12,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:12,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1854721229, now seen corresponding path program 1 times [2020-11-28 03:14:12,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:12,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138237233] [2020-11-28 03:14:12,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:12,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138237233] [2020-11-28 03:14:12,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:12,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:12,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358038241] [2020-11-28 03:14:12,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:12,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:12,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:12,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:12,804 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-11-28 03:14:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:12,822 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-11-28 03:14:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:12,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:14:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:12,825 INFO L225 Difference]: With dead ends: 85 [2020-11-28 03:14:12,826 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:14:12,827 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 [2020-11-28 03:14:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:14:12,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:14:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:14:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-28 03:14:12,842 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-11-28 03:14:12,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:12,842 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-28 03:14:12,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-28 03:14:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:14:12,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:12,846 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] [2020-11-28 03:14:12,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:12,847 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:12,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2020-11-28 03:14:12,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:12,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135768130] [2020-11-28 03:14:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:12,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135768130] [2020-11-28 03:14:12,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:12,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:12,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350937560] [2020-11-28 03:14:12,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:12,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:12,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:12,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:12,988 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 5 states. [2020-11-28 03:14:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:13,053 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2020-11-28 03:14:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:13,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-28 03:14:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:13,055 INFO L225 Difference]: With dead ends: 95 [2020-11-28 03:14:13,055 INFO L226 Difference]: Without dead ends: 62 [2020-11-28 03:14:13,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:13,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-28 03:14:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-11-28 03:14:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-28 03:14:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-11-28 03:14:13,072 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2020-11-28 03:14:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:13,072 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-11-28 03:14:13,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-11-28 03:14:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:14:13,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:13,074 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] [2020-11-28 03:14:13,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:13,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:13,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:13,077 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2020-11-28 03:14:13,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:13,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442031042] [2020-11-28 03:14:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:13,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442031042] [2020-11-28 03:14:13,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:13,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:13,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6602805] [2020-11-28 03:14:13,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:13,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:13,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:13,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:13,148 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2020-11-28 03:14:13,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:13,176 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2020-11-28 03:14:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:13,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 03:14:13,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:13,178 INFO L225 Difference]: With dead ends: 131 [2020-11-28 03:14:13,178 INFO L226 Difference]: Without dead ends: 79 [2020-11-28 03:14:13,178 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 [2020-11-28 03:14:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-28 03:14:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-11-28 03:14:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-28 03:14:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2020-11-28 03:14:13,188 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2020-11-28 03:14:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:13,188 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2020-11-28 03:14:13,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2020-11-28 03:14:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:14:13,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:13,189 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] [2020-11-28 03:14:13,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:13,189 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:13,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2020-11-28 03:14:13,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:13,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312870170] [2020-11-28 03:14:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:13,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312870170] [2020-11-28 03:14:13,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:13,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:14:13,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508227706] [2020-11-28 03:14:13,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:14:13,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:13,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:14:13,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:13,310 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 8 states. [2020-11-28 03:14:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:13,932 INFO L93 Difference]: Finished difference Result 485 states and 709 transitions. [2020-11-28 03:14:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:14:13,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-28 03:14:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:13,938 INFO L225 Difference]: With dead ends: 485 [2020-11-28 03:14:13,938 INFO L226 Difference]: Without dead ends: 414 [2020-11-28 03:14:13,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:14:13,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-11-28 03:14:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 198. [2020-11-28 03:14:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-28 03:14:13,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2020-11-28 03:14:13,971 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 25 [2020-11-28 03:14:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:13,972 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2020-11-28 03:14:13,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:14:13,972 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2020-11-28 03:14:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-28 03:14:13,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:13,980 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:13,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:13,980 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:13,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1431804840, now seen corresponding path program 1 times [2020-11-28 03:14:13,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:13,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453804672] [2020-11-28 03:14:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:14,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453804672] [2020-11-28 03:14:14,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066813166] [2020-11-28 03:14:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:14,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:14:14,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:14:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:14,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:14:14,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-28 03:14:14,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551960968] [2020-11-28 03:14:14,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:14:14,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:14,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:14:14,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:14,313 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand 4 states. [2020-11-28 03:14:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:14,432 INFO L93 Difference]: Finished difference Result 441 states and 627 transitions. [2020-11-28 03:14:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:14:14,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-28 03:14:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:14,435 INFO L225 Difference]: With dead ends: 441 [2020-11-28 03:14:14,435 INFO L226 Difference]: Without dead ends: 310 [2020-11-28 03:14:14,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-28 03:14:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 299. [2020-11-28 03:14:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-28 03:14:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 422 transitions. [2020-11-28 03:14:14,467 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 422 transitions. Word has length 41 [2020-11-28 03:14:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:14,467 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 422 transitions. [2020-11-28 03:14:14,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:14:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 422 transitions. [2020-11-28 03:14:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 03:14:14,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:14,470 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:14,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 03:14:14,697 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:14,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:14,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1067952311, now seen corresponding path program 1 times [2020-11-28 03:14:14,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:14,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713825769] [2020-11-28 03:14:14,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:14:14,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713825769] [2020-11-28 03:14:14,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:14,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:14,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718896359] [2020-11-28 03:14:14,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:14,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:14,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:14,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:14,800 INFO L87 Difference]: Start difference. First operand 299 states and 422 transitions. Second operand 5 states. [2020-11-28 03:14:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:14,890 INFO L93 Difference]: Finished difference Result 950 states and 1334 transitions. [2020-11-28 03:14:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:14,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-11-28 03:14:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:14,897 INFO L225 Difference]: With dead ends: 950 [2020-11-28 03:14:14,897 INFO L226 Difference]: Without dead ends: 657 [2020-11-28 03:14:14,900 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 [2020-11-28 03:14:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-11-28 03:14:14,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 311. [2020-11-28 03:14:14,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-11-28 03:14:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 434 transitions. [2020-11-28 03:14:14,935 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 434 transitions. Word has length 47 [2020-11-28 03:14:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:14,936 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 434 transitions. [2020-11-28 03:14:14,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 434 transitions. [2020-11-28 03:14:14,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 03:14:14,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:14,942 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:14,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:14:14,944 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash 558479221, now seen corresponding path program 1 times [2020-11-28 03:14:14,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:14,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077149439] [2020-11-28 03:14:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:14:15,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077149439] [2020-11-28 03:14:15,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:15,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:15,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137036802] [2020-11-28 03:14:15,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:14:15,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:15,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:14:15,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:15,032 INFO L87 Difference]: Start difference. First operand 311 states and 434 transitions. Second operand 4 states. [2020-11-28 03:14:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:15,105 INFO L93 Difference]: Finished difference Result 708 states and 987 transitions. [2020-11-28 03:14:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:14:15,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-11-28 03:14:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:15,109 INFO L225 Difference]: With dead ends: 708 [2020-11-28 03:14:15,109 INFO L226 Difference]: Without dead ends: 403 [2020-11-28 03:14:15,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-11-28 03:14:15,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 277. [2020-11-28 03:14:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-11-28 03:14:15,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 384 transitions. [2020-11-28 03:14:15,143 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 384 transitions. Word has length 47 [2020-11-28 03:14:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:15,144 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 384 transitions. [2020-11-28 03:14:15,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:14:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 384 transitions. [2020-11-28 03:14:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-28 03:14:15,147 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:15,147 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 03:14:15,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:14:15,148 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:15,148 INFO L82 PathProgramCache]: Analyzing trace with hash 752951925, now seen corresponding path program 1 times [2020-11-28 03:14:15,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:15,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075506529] [2020-11-28 03:14:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:15,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075506529] [2020-11-28 03:14:15,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928556293] [2020-11-28 03:14:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:15,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:14:15,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:14:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:15,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:14:15,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:14:15,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815759681] [2020-11-28 03:14:15,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:14:15,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:15,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:14:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:15,476 INFO L87 Difference]: Start difference. First operand 277 states and 384 transitions. Second operand 8 states. [2020-11-28 03:14:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:15,771 INFO L93 Difference]: Finished difference Result 695 states and 966 transitions. [2020-11-28 03:14:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:14:15,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-11-28 03:14:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:15,775 INFO L225 Difference]: With dead ends: 695 [2020-11-28 03:14:15,775 INFO L226 Difference]: Without dead ends: 465 [2020-11-28 03:14:15,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:14:15,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-11-28 03:14:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 239. [2020-11-28 03:14:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-28 03:14:15,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2020-11-28 03:14:15,804 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 48 [2020-11-28 03:14:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:15,805 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2020-11-28 03:14:15,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:14:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2020-11-28 03:14:15,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 03:14:15,808 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:15,809 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:14:16,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:14:16,023 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:16,023 INFO L82 PathProgramCache]: Analyzing trace with hash 444201121, now seen corresponding path program 2 times [2020-11-28 03:14:16,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:16,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061858661] [2020-11-28 03:14:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:16,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:16,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:16,273 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:14:16,273 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:14:16,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:14:16,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:16 BoogieIcfgContainer [2020-11-28 03:14:16,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:16,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:16,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:16,439 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:16,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:12" (3/4) ... [2020-11-28 03:14:16,441 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:14:16,607 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3d308be-958a-4243-b609-5c72b65a0975/bin/uautomizer/witness.graphml [2020-11-28 03:14:16,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:16,609 INFO L168 Benchmark]: Toolchain (without parser) took 6213.02 ms. Allocated memory was 86.0 MB in the beginning and 136.3 MB in the end (delta: 50.3 MB). Free memory was 53.4 MB in the beginning and 54.4 MB in the end (delta: -978.6 kB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,610 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 71.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:16,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.28 ms. Allocated memory is still 86.0 MB. Free memory was 53.1 MB in the beginning and 53.0 MB in the end (delta: 125.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.09 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 49.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,613 INFO L168 Benchmark]: Boogie Preprocessor took 69.73 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,613 INFO L168 Benchmark]: RCFGBuilder took 1079.99 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 86.5 MB in the end (delta: -39.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,615 INFO L168 Benchmark]: TraceAbstraction took 4271.63 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 85.9 MB in the beginning and 78.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,615 INFO L168 Benchmark]: Witness Printer took 170.37 ms. Allocated memory is still 136.3 MB. Free memory was 78.5 MB in the beginning and 54.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:16,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 71.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.28 ms. Allocated memory is still 86.0 MB. Free memory was 53.1 MB in the beginning and 53.0 MB in the end (delta: 125.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.09 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 49.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.73 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1079.99 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 86.5 MB in the end (delta: -39.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4271.63 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 85.9 MB in the beginning and 78.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. * Witness Printer took 170.37 ms. Allocated memory is still 136.3 MB. Free memory was 78.5 MB in the beginning and 54.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 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: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] int retValue_acc ; [L833] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L466] int retValue_acc ; [L469] retValue_acc = 1 [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] tmp = valid_product() [L841] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L482] int splverifierCounter ; [L483] int tmp ; [L484] int tmp___0 ; [L485] int tmp___1 ; [L486] int tmp___2 ; [L489] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] tmp = __VERIFIER_nondet_int() [L501] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L873] COND TRUE waterLevel < 2 [L874] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE ! pumpRunning [L708] int retValue_acc ; [L709] int tmp ; [L710] int tmp___0 ; [L935] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(waterLevel < 2) [L942] retValue_acc = 0 [L943] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] tmp = isHighWaterSensorDry() [L716] COND FALSE !(\read(tmp)) [L719] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] retValue_acc = tmp___0 [L722] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] tmp = isHighWaterLevel() [L600] COND TRUE \read(tmp) [L627] int tmp ; [L652] int retValue_acc ; [L894] int retValue_acc ; [L897] retValue_acc = methaneLevelCritical [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] retValue_acc = isMethaneLevelCritical() [L658] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] tmp = isMethaneAlarm() [L633] COND FALSE !(\read(tmp)) [L621] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L861] COND TRUE waterLevel > 0 [L862] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel > 0 [L862] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L596] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L663] int retValue_acc ; [L666] retValue_acc = pumpRunning [L667] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 1199 SDslu, 1442 SDs, 0 SdLazy, 213 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=7, 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, 9 MinimizatonAttempts, 931 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 25988 SizeOfPredicates, 4 NumberOfNonLiveVariables, 806 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 75/86 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...