./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/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 609efdf4f988170ff745a87fec8ed7ede6211079 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:23:07,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:23:07,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:23:07,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:23:07,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:23:07,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:23:07,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:23:07,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:23:07,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:23:07,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:23:07,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:23:07,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:23:07,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:23:07,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:23:07,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:23:07,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:23:07,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:23:07,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:23:07,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:23:07,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:23:07,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:23:07,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:23:07,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:23:07,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:23:07,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:23:07,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:23:07,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:23:07,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:23:07,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:23:07,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:23:07,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:23:07,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:23:07,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:23:07,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:23:07,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:23:07,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:23:07,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:23:07,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:23:07,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:23:07,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:23:07,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:23:07,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:23:07,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:23:07,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:23:07,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:23:07,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:23:07,589 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:23:07,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:23:07,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:23:07,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:23:07,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:23:07,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:23:07,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:23:07,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:23:07,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:23:07,593 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:23:07,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:23:07,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:23:07,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:23:07,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:23:07,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:23:07,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:23:07,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:23:07,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:23:07,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:23:07,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:23:07,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:23:07,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:23:07,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:23:07,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:23:07,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:23:07,598 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_ea317b12-6264-4a50-9b9d-ed64582d1429/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-29 18:23:07,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:23:08,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:23:08,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:23:08,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:23:08,016 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:23:08,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-29 18:23:08,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/data/332b3ebd3/4cb92ac257dc42958fb6a7eb38b7a051/FLAG17e97b3e3 [2020-11-29 18:23:08,735 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:23:08,735 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-29 18:23:08,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/data/332b3ebd3/4cb92ac257dc42958fb6a7eb38b7a051/FLAG17e97b3e3 [2020-11-29 18:23:09,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/data/332b3ebd3/4cb92ac257dc42958fb6a7eb38b7a051 [2020-11-29 18:23:09,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:23:09,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:23:09,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:23:09,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:23:09,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:23:09,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cd7e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09, skipping insertion in model container [2020-11-29 18:23:09,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:23:09,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:23:09,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:23:09,523 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:23:09,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:23:09,709 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:23:09,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09 WrapperNode [2020-11-29 18:23:09,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:23:09,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:23:09,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:23:09,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:23:09,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:23:09,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:23:09,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:23:09,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:23:09,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... [2020-11-29 18:23:09,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:23:09,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:23:09,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:23:09,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:23:09,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:23:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:23:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:23:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:23:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:23:11,390 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:23:11,391 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-29 18:23:11,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:23:11 BoogieIcfgContainer [2020-11-29 18:23:11,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:23:11,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:23:11,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:23:11,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:23:11,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:23:09" (1/3) ... [2020-11-29 18:23:11,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6dda75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:23:11, skipping insertion in model container [2020-11-29 18:23:11,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:23:09" (2/3) ... [2020-11-29 18:23:11,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6dda75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:23:11, skipping insertion in model container [2020-11-29 18:23:11,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:23:11" (3/3) ... [2020-11-29 18:23:11,405 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-11-29 18:23:11,419 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:23:11,425 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 18:23:11,441 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 18:23:11,476 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:23:11,476 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:23:11,477 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:23:11,477 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:23:11,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:23:11,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:23:11,481 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:23:11,481 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:23:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-29 18:23:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:23:11,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:23:11,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:23:11,509 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:23:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:23:11,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-11-29 18:23:11,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:23:11,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555621353] [2020-11-29 18:23:11,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:23:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:23:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:23:11,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555621353] [2020-11-29 18:23:11,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:23:11,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:23:11,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293326588] [2020-11-29 18:23:11,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:23:11,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:23:11,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:23:11,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:23:11,965 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-29 18:23:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:23:12,000 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-29 18:23:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:23:12,002 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 18:23:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:23:12,016 INFO L225 Difference]: With dead ends: 223 [2020-11-29 18:23:12,016 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 18:23:12,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:23:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 18:23:12,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-29 18:23:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 18:23:12,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-29 18:23:12,080 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-29 18:23:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:23:12,080 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-29 18:23:12,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:23:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-29 18:23:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:23:12,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:23:12,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:23:12,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:23:12,084 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:23:12,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:23:12,085 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-11-29 18:23:12,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:23:12,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285129765] [2020-11-29 18:23:12,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:23:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:23:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:23:12,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285129765] [2020-11-29 18:23:12,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:23:12,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:23:12,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74304873] [2020-11-29 18:23:12,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:23:12,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:23:12,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:23:12,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:23:12,213 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-11-29 18:23:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:23:12,243 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-29 18:23:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:23:12,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 18:23:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:23:12,249 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:23:12,250 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 18:23:12,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:23:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 18:23:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 18:23:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 18:23:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-29 18:23:12,272 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-29 18:23:12,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:23:12,272 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-29 18:23:12,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:23:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-29 18:23:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:23:12,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:23:12,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:23:12,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:23:12,279 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:23:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:23:12,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-11-29 18:23:12,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:23:12,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332923781] [2020-11-29 18:23:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:23:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:23:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:23:12,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332923781] [2020-11-29 18:23:12,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:23:12,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:23:12,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836562019] [2020-11-29 18:23:12,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:23:12,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:23:12,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:23:12,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:23:12,466 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 5 states. [2020-11-29 18:23:12,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:23:12,563 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-29 18:23:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:23:12,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 18:23:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:23:12,570 INFO L225 Difference]: With dead ends: 113 [2020-11-29 18:23:12,570 INFO L226 Difference]: Without dead ends: 72 [2020-11-29 18:23:12,571 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 [2020-11-29 18:23:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-29 18:23:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-11-29 18:23:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 18:23:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-29 18:23:12,597 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-29 18:23:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:23:12,598 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-29 18:23:12,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:23:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-29 18:23:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 18:23:12,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:23:12,600 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] [2020-11-29 18:23:12,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:23:12,600 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:23:12,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:23:12,601 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-11-29 18:23:12,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:23:12,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821935716] [2020-11-29 18:23:12,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:23:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:23:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:23:12,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821935716] [2020-11-29 18:23:12,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:23:12,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:23:12,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699699564] [2020-11-29 18:23:12,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:23:12,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:23:12,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:23:12,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:23:12,766 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 5 states. [2020-11-29 18:23:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:23:12,989 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2020-11-29 18:23:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:23:12,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 18:23:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:23:12,994 INFO L225 Difference]: With dead ends: 376 [2020-11-29 18:23:12,994 INFO L226 Difference]: Without dead ends: 314 [2020-11-29 18:23:12,996 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 [2020-11-29 18:23:12,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-29 18:23:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2020-11-29 18:23:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-29 18:23:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2020-11-29 18:23:13,049 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2020-11-29 18:23:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:23:13,050 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2020-11-29 18:23:13,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:23:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2020-11-29 18:23:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 18:23:13,059 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:23:13,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:23:13,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:23:13,059 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:23:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:23:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-11-29 18:23:13,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:23:13,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33932032] [2020-11-29 18:23:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:23:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:23:13,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:23:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:23:13,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:23:13,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:23:13,385 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:23:13,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:23:13,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:23:13 BoogieIcfgContainer [2020-11-29 18:23:13,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:23:13,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:23:13,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:23:13,549 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:23:13,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:23:11" (3/4) ... [2020-11-29 18:23:13,552 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:23:13,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ea317b12-6264-4a50-9b9d-ed64582d1429/bin/uautomizer/witness.graphml [2020-11-29 18:23:13,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:23:13,701 INFO L168 Benchmark]: Toolchain (without parser) took 4645.31 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 53.7 MB in the beginning and 47.6 MB in the end (delta: 6.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,703 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:23:13,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.95 ms. Allocated memory is still 86.0 MB. Free memory was 53.7 MB in the beginning and 53.5 MB in the end (delta: 202.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.13 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 49.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,706 INFO L168 Benchmark]: Boogie Preprocessor took 92.99 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 47.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,707 INFO L168 Benchmark]: RCFGBuilder took 1476.34 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.9 MB in the beginning and 84.0 MB in the end (delta: -37.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,707 INFO L168 Benchmark]: TraceAbstraction took 2152.02 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 59.3 MB in the end (delta: 24.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,708 INFO L168 Benchmark]: Witness Printer took 149.13 ms. Allocated memory is still 113.2 MB. Free memory was 59.3 MB in the beginning and 47.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:23:13,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 650.95 ms. Allocated memory is still 86.0 MB. Free memory was 53.7 MB in the beginning and 53.5 MB in the end (delta: 202.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.13 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 49.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.99 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 47.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1476.34 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.9 MB in the beginning and 84.0 MB in the end (delta: -37.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2152.02 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 59.3 MB in the end (delta: 24.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 149.13 ms. Allocated memory is still 113.2 MB. Free memory was 59.3 MB in the beginning and 47.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 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: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L371] int cleanupTimeShifts = 4; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] int retValue_acc ; [L448] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L954] retValue_acc = 1 [L955] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] tmp = valid_product() [L456] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] int splverifierCounter ; [L269] int tmp ; [L270] int tmp___0 ; [L271] int tmp___1 ; [L272] int tmp___2 ; [L275] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L277] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L279] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L285] tmp = __VERIFIER_nondet_int() [L287] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L295] tmp___0 = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] tmp___2 = __VERIFIER_nondet_int() [L307] COND TRUE \read(tmp___2) [L259] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L70] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND TRUE \read(systemActive) [L125] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) [L99] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L102] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L344] tmp = isMethaneLevelCritical() [L346] COND FALSE !(\read(tmp)) [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] tmp___0 = getWaterLevel() [L352] COND TRUE tmp___0 == 2 [L177] int retValue_acc ; [L180] retValue_acc = pumpRunning [L181] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] tmp___1 = isPumpRunning() [L356] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product24.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 644 SDslu, 310 SDs, 0 SdLazy, 55 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, 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, 4 MinimizatonAttempts, 194 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...