./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.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_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/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 67bbde08c422c0aae8c31f3e56c0c6d44363bbfb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:20:19,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:19,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:19,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:19,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:19,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:19,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:19,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:19,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:19,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:19,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:19,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:19,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:19,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:19,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:19,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:19,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:19,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:19,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:19,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:19,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:19,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:19,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:19,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:19,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:19,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:19,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:19,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:19,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:19,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:19,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:19,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:19,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:19,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:19,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:19,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:19,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:19,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:19,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:19,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:19,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:19,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:20:19,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:19,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:19,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:19,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:19,524 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:19,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:19,524 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:19,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:19,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:19,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:19,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:20:19,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:19,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:20:19,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:19,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:19,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:19,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:20:19,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:19,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:19,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:19,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:19,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:19,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:19,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:19,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:20:19,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:19,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:19,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:20:19,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:19,529 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_35cb93a9-a2f8-413f-952b-e8223e0471d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67bbde08c422c0aae8c31f3e56c0c6d44363bbfb [2020-11-28 03:20:19,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:19,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:19,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:19,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:19,762 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:19,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2020-11-28 03:20:19,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/data/1497fb4b1/a9bb38628bcb4f1e9e550e3ebd8cb10e/FLAGdfef6ec0e [2020-11-28 03:20:20,262 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:20,263 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2020-11-28 03:20:20,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/data/1497fb4b1/a9bb38628bcb4f1e9e550e3ebd8cb10e/FLAGdfef6ec0e [2020-11-28 03:20:20,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/data/1497fb4b1/a9bb38628bcb4f1e9e550e3ebd8cb10e [2020-11-28 03:20:20,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:20,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:20,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:20,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:20,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:20,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:20" (1/1) ... [2020-11-28 03:20:20,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dea6a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:20, skipping insertion in model container [2020-11-28 03:20:20,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:20" (1/1) ... [2020-11-28 03:20:20,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:20,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:21,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:21,024 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:21,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:21,159 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:21,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21 WrapperNode [2020-11-28 03:20:21,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:21,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:21,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:21,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:21,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:21,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:21,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:21,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:21,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:21,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:21,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:21,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:21,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/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 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:20:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:22,601 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:22,601 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-28 03:20:22,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22 BoogieIcfgContainer [2020-11-28 03:20:22,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:22,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:22,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:22,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:22,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:20" (1/3) ... [2020-11-28 03:20:22,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b1a2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:22, skipping insertion in model container [2020-11-28 03:20:22,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (2/3) ... [2020-11-28 03:20:22,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b1a2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:22, skipping insertion in model container [2020-11-28 03:20:22,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22" (3/3) ... [2020-11-28 03:20:22,611 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-11-28 03:20:22,622 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:22,626 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:20:22,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:20:22,660 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:22,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:20:22,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:22,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:22,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:22,661 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:22,661 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:22,661 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:22,683 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-11-28 03:20:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:20:22,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:22,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:22,691 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1207588985, now seen corresponding path program 1 times [2020-11-28 03:20:22,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821856727] [2020-11-28 03:20:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:22,964 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 03:20:22,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821856727] [2020-11-28 03:20:22,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:22,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:22,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427623417] [2020-11-28 03:20:22,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:20:22,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:22,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:20:22,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:20:22,987 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2020-11-28 03:20:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:23,026 INFO L93 Difference]: Finished difference Result 247 states and 374 transitions. [2020-11-28 03:20:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:20:23,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:20:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:23,041 INFO L225 Difference]: With dead ends: 247 [2020-11-28 03:20:23,041 INFO L226 Difference]: Without dead ends: 121 [2020-11-28 03:20:23,048 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 03:20:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-28 03:20:23,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-11-28 03:20:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-28 03:20:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2020-11-28 03:20:23,122 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2020-11-28 03:20:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2020-11-28 03:20:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:20:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2020-11-28 03:20:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:20:23,128 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:23,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:23,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:23,129 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:23,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:23,130 INFO L82 PathProgramCache]: Analyzing trace with hash 296558232, now seen corresponding path program 1 times [2020-11-28 03:20:23,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:23,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498869987] [2020-11-28 03:20:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:23,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498869987] [2020-11-28 03:20:23,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:23,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:23,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680257169] [2020-11-28 03:20:23,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:23,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:23,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:23,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:23,239 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2020-11-28 03:20:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:23,251 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2020-11-28 03:20:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:23,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:20:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:23,253 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:20:23,253 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 03:20:23,254 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 03:20:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 03:20:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-28 03:20:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-28 03:20:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-11-28 03:20:23,263 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-11-28 03:20:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:23,263 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-11-28 03:20:23,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-11-28 03:20:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:20:23,265 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:23,266 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] [2020-11-28 03:20:23,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:23,267 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash -882616339, now seen corresponding path program 1 times [2020-11-28 03:20:23,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:23,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871949493] [2020-11-28 03:20:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:23,386 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 03:20:23,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871949493] [2020-11-28 03:20:23,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:23,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:23,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104242888] [2020-11-28 03:20:23,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:23,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:23,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:23,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:23,388 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 5 states. [2020-11-28 03:20:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:23,462 INFO L93 Difference]: Finished difference Result 121 states and 179 transitions. [2020-11-28 03:20:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:20:23,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 03:20:23,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:23,468 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:20:23,468 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 03:20:23,469 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 03:20:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 03:20:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-11-28 03:20:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:20:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2020-11-28 03:20:23,491 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2020-11-28 03:20:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:23,493 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2020-11-28 03:20:23,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:23,493 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2020-11-28 03:20:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:20:23,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:23,496 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] [2020-11-28 03:20:23,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:23,496 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:23,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:23,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1572520497, now seen corresponding path program 1 times [2020-11-28 03:20:23,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:23,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373351636] [2020-11-28 03:20:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:23,605 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 03:20:23,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373351636] [2020-11-28 03:20:23,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:23,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:23,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397614245] [2020-11-28 03:20:23,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:20:23,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:23,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:23,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:23,607 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2020-11-28 03:20:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:23,649 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2020-11-28 03:20:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:23,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 03:20:23,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:23,651 INFO L225 Difference]: With dead ends: 161 [2020-11-28 03:20:23,651 INFO L226 Difference]: Without dead ends: 95 [2020-11-28 03:20:23,652 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 03:20:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-28 03:20:23,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-11-28 03:20:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-28 03:20:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2020-11-28 03:20:23,666 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2020-11-28 03:20:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:23,667 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2020-11-28 03:20:23,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:20:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2020-11-28 03:20:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:20:23,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:23,671 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] [2020-11-28 03:20:23,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:23,672 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1445956926, now seen corresponding path program 1 times [2020-11-28 03:20:23,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:23,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16630312] [2020-11-28 03:20:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:23,761 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 03:20:23,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16630312] [2020-11-28 03:20:23,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:23,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:20:23,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61905003] [2020-11-28 03:20:23,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:20:23,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:23,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:20:23,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:20:23,763 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2020-11-28 03:20:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:23,919 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2020-11-28 03:20:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:20:23,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:20:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:23,925 INFO L225 Difference]: With dead ends: 482 [2020-11-28 03:20:23,935 INFO L226 Difference]: Without dead ends: 395 [2020-11-28 03:20:23,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 03:20:23,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-11-28 03:20:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2020-11-28 03:20:23,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:20:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2020-11-28 03:20:23,964 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2020-11-28 03:20:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:23,964 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2020-11-28 03:20:23,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:20:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2020-11-28 03:20:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:20:23,966 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:23,966 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] [2020-11-28 03:20:23,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:20:23,967 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:20:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1148746628, now seen corresponding path program 1 times [2020-11-28 03:20:23,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:23,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979803902] [2020-11-28 03:20:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:24,045 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:24,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:24,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:24,174 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:20:24,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:20:24,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:24 BoogieIcfgContainer [2020-11-28 03:20:24,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:24,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:24,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:24,296 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:24,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22" (3/4) ... [2020-11-28 03:20:24,298 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:20:24,407 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_35cb93a9-a2f8-413f-952b-e8223e0471d1/bin/uautomizer/witness.graphml [2020-11-28 03:20:24,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:24,411 INFO L168 Benchmark]: Toolchain (without parser) took 3795.23 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 81.5 MB in the beginning and 80.9 MB in the end (delta: 650.6 kB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,411 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:24,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.66 ms. Allocated memory is still 111.1 MB. Free memory was 81.5 MB in the beginning and 75.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 71.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,413 INFO L168 Benchmark]: Boogie Preprocessor took 75.65 ms. Allocated memory is still 111.1 MB. Free memory was 71.1 MB in the beginning and 68.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,413 INFO L168 Benchmark]: RCFGBuilder took 1275.74 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 68.3 MB in the beginning and 85.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,414 INFO L168 Benchmark]: TraceAbstraction took 1690.04 ms. Allocated memory is still 151.0 MB. Free memory was 85.0 MB in the beginning and 92.4 MB in the end (delta: -7.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:24,414 INFO L168 Benchmark]: Witness Printer took 111.78 ms. Allocated memory is still 151.0 MB. Free memory was 92.4 MB in the beginning and 80.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:24,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.66 ms. Allocated memory is still 111.1 MB. Free memory was 81.5 MB in the beginning and 75.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 71.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.65 ms. Allocated memory is still 111.1 MB. Free memory was 71.1 MB in the beginning and 68.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1275.74 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 68.3 MB in the beginning and 85.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1690.04 ms. Allocated memory is still 151.0 MB. Free memory was 85.0 MB in the beginning and 92.4 MB in the end (delta: -7.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 111.78 ms. Allocated memory is still 151.0 MB. Free memory was 92.4 MB in the beginning and 80.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 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: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L561] int pumpRunning = 0; [L562] int systemActive = 1; [L898] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] int retValue_acc ; [L892] retValue_acc = 1 [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L761] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L568] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L575] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L675] int retValue_acc ; [L678] retValue_acc = pumpRunning [L679] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product52.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 673 SDslu, 373 SDs, 0 SdLazy, 67 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 243 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...