./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/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 2a503d744e1f87de1c9c505a18eb69768c300bcf ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:12:31,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:12:31,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:12:31,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:12:31,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:12:31,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:12:31,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:12:31,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:12:31,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:12:31,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:12:31,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:12:31,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:12:31,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:12:31,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:12:31,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:12:31,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:12:31,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:12:31,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:12:31,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:12:31,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:12:31,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:12:31,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:12:31,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:12:31,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:12:31,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:12:31,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:12:31,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:12:31,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:12:31,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:12:31,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:12:31,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:12:31,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:12:31,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:12:31,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:12:31,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:12:31,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:12:31,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:12:31,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:12:31,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:12:31,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:12:31,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:12:31,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:12:31,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:12:31,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:12:31,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:12:31,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:12:31,686 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:12:31,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:12:31,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:12:31,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:12:31,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:12:31,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:12:31,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:12:31,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:12:31,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:12:31,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:12:31,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:12:31,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:12:31,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:12:31,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:12:31,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:12:31,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:12:31,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:12:31,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:12:31,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:12:31,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:12:31,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:12:31,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:12:31,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:12:31,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:12:31,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:12:31,694 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_98f170b1-b8a3-47ee-9a37-44c560560c8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2020-11-29 20:12:32,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:12:32,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:12:32,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:12:32,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:12:32,103 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:12:32,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-29 20:12:32,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/data/653e5d772/c69a914802ad47079259abf47888c75f/FLAG7741f1cd3 [2020-11-29 20:12:32,893 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:12:32,894 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-11-29 20:12:32,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/data/653e5d772/c69a914802ad47079259abf47888c75f/FLAG7741f1cd3 [2020-11-29 20:12:33,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/data/653e5d772/c69a914802ad47079259abf47888c75f [2020-11-29 20:12:33,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:12:33,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:12:33,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:12:33,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:12:33,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:12:33,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:33,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6cdd7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33, skipping insertion in model container [2020-11-29 20:12:33,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:33,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:12:33,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:12:33,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:12:33,702 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:12:33,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:12:33,912 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:12:33,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33 WrapperNode [2020-11-29 20:12:33,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:12:33,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:12:33,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:12:33,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:12:33,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:33,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:12:34,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:12:34,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:12:34,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:12:34,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... [2020-11-29 20:12:34,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:12:34,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:12:34,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:12:34,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:12:34,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/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 20:12:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:12:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:12:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:12:34,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:12:35,478 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:12:35,479 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-29 20:12:35,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:35 BoogieIcfgContainer [2020-11-29 20:12:35,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:12:35,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:12:35,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:12:35,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:12:35,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:12:33" (1/3) ... [2020-11-29 20:12:35,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdeef32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:12:35, skipping insertion in model container [2020-11-29 20:12:35,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:12:33" (2/3) ... [2020-11-29 20:12:35,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdeef32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:12:35, skipping insertion in model container [2020-11-29 20:12:35,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:35" (3/3) ... [2020-11-29 20:12:35,494 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-11-29 20:12:35,522 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:12:35,528 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 20:12:35,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:12:35,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:12:35,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:12:35,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:12:35,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:12:35,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:12:35,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:12:35,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:12:35,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:12:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-11-29 20:12:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:12:35,607 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:35,608 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 20:12:35,608 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:35,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:35,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1398271785, now seen corresponding path program 1 times [2020-11-29 20:12:35,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:35,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764864343] [2020-11-29 20:12:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:36,042 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 20:12:36,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764864343] [2020-11-29 20:12:36,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:36,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:12:36,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560722554] [2020-11-29 20:12:36,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:12:36,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:36,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:12:36,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:12:36,079 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-11-29 20:12:36,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:36,135 INFO L93 Difference]: Finished difference Result 169 states and 254 transitions. [2020-11-29 20:12:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:12:36,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 20:12:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:36,150 INFO L225 Difference]: With dead ends: 169 [2020-11-29 20:12:36,150 INFO L226 Difference]: Without dead ends: 82 [2020-11-29 20:12:36,155 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 20:12:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-29 20:12:36,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-11-29 20:12:36,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-29 20:12:36,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2020-11-29 20:12:36,208 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2020-11-29 20:12:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:36,209 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2020-11-29 20:12:36,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:12:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2020-11-29 20:12:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 20:12:36,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:36,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:36,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:12:36,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:36,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:36,213 INFO L82 PathProgramCache]: Analyzing trace with hash 706705125, now seen corresponding path program 1 times [2020-11-29 20:12:36,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:36,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295299480] [2020-11-29 20:12:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:36,353 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 20:12:36,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295299480] [2020-11-29 20:12:36,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:36,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:12:36,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190841850] [2020-11-29 20:12:36,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:12:36,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:36,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:12:36,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:12:36,358 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2020-11-29 20:12:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:36,380 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2020-11-29 20:12:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:12:36,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 20:12:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:36,386 INFO L225 Difference]: With dead ends: 82 [2020-11-29 20:12:36,387 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 20:12:36,388 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 20:12:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 20:12:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 20:12:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 20:12:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-11-29 20:12:36,399 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-11-29 20:12:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:36,400 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-11-29 20:12:36,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:12:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-11-29 20:12:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 20:12:36,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:36,404 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 20:12:36,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:12:36,406 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:36,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:36,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2020-11-29 20:12:36,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:36,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457463899] [2020-11-29 20:12:36,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:36,580 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 20:12:36,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457463899] [2020-11-29 20:12:36,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:36,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:12:36,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761004260] [2020-11-29 20:12:36,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:12:36,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:12:36,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:12:36,583 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2020-11-29 20:12:36,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:36,611 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2020-11-29 20:12:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:12:36,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 20:12:36,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:36,617 INFO L225 Difference]: With dead ends: 102 [2020-11-29 20:12:36,618 INFO L226 Difference]: Without dead ends: 70 [2020-11-29 20:12:36,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:12:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-29 20:12:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-11-29 20:12:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-29 20:12:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2020-11-29 20:12:36,661 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 24 [2020-11-29 20:12:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:36,664 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2020-11-29 20:12:36,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:12:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2020-11-29 20:12:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:12:36,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:36,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:36,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:12:36,667 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:36,668 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2020-11-29 20:12:36,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:36,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711479442] [2020-11-29 20:12:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:36,797 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 20:12:36,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711479442] [2020-11-29 20:12:36,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:36,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:12:36,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172655850] [2020-11-29 20:12:36,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:12:36,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:36,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:12:36,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:12:36,800 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2020-11-29 20:12:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:36,882 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2020-11-29 20:12:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:12:36,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 20:12:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:36,884 INFO L225 Difference]: With dead ends: 171 [2020-11-29 20:12:36,885 INFO L226 Difference]: Without dead ends: 111 [2020-11-29 20:12:36,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:12:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-29 20:12:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2020-11-29 20:12:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 20:12:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2020-11-29 20:12:36,908 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 25 [2020-11-29 20:12:36,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:36,911 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2020-11-29 20:12:36,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:12:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2020-11-29 20:12:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 20:12:36,914 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:36,914 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 20:12:36,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:12:36,915 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2020-11-29 20:12:36,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:36,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874693461] [2020-11-29 20:12:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:12:37,047 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 20:12:37,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874693461] [2020-11-29 20:12:37,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:12:37,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:12:37,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828855396] [2020-11-29 20:12:37,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:12:37,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:12:37,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:12:37,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:12:37,050 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 5 states. [2020-11-29 20:12:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:12:37,262 INFO L93 Difference]: Finished difference Result 597 states and 891 transitions. [2020-11-29 20:12:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:12:37,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-29 20:12:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:12:37,270 INFO L225 Difference]: With dead ends: 597 [2020-11-29 20:12:37,273 INFO L226 Difference]: Without dead ends: 494 [2020-11-29 20:12:37,275 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 20:12:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-11-29 20:12:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 198. [2020-11-29 20:12:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 20:12:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2020-11-29 20:12:37,331 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 27 [2020-11-29 20:12:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:12:37,331 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2020-11-29 20:12:37,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:12:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2020-11-29 20:12:37,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:12:37,334 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:12:37,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:12:37,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:12:37,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:12:37,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:12:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2020-11-29 20:12:37,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:12:37,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790830167] [2020-11-29 20:12:37,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:12:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:12:37,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:12:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:12:37,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:12:37,542 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:12:37,542 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:12:37,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:12:37,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:12:37 BoogieIcfgContainer [2020-11-29 20:12:37,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:12:37,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:12:37,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:12:37,716 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:12:37,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:12:35" (3/4) ... [2020-11-29 20:12:37,719 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:12:37,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_98f170b1-b8a3-47ee-9a37-44c560560c8b/bin/uautomizer/witness.graphml [2020-11-29 20:12:37,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:12:37,815 INFO L168 Benchmark]: Toolchain (without parser) took 4636.88 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.8 MB in the beginning and 42.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,815 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:37,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.85 ms. Allocated memory is still 92.3 MB. Free memory was 59.5 MB in the beginning and 59.0 MB in the end (delta: 485.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.16 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 55.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,817 INFO L168 Benchmark]: Boogie Preprocessor took 57.72 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,818 INFO L168 Benchmark]: RCFGBuilder took 1356.31 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 52.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,818 INFO L168 Benchmark]: TraceAbstraction took 2231.33 ms. Allocated memory is still 111.1 MB. Free memory was 51.7 MB in the beginning and 53.5 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:12:37,819 INFO L168 Benchmark]: Witness Printer took 97.22 ms. Allocated memory is still 111.1 MB. Free memory was 53.5 MB in the beginning and 42.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:12:37,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 92.3 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.85 ms. Allocated memory is still 92.3 MB. Free memory was 59.5 MB in the beginning and 59.0 MB in the end (delta: 485.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.16 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 55.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.72 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 53.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1356.31 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 52.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2231.33 ms. Allocated memory is still 111.1 MB. Free memory was 51.7 MB in the beginning and 53.5 MB in the end (delta: -1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 97.22 ms. Allocated memory is still 111.1 MB. Free memory was 53.5 MB in the beginning and 42.2 MB in the end (delta: 11.3 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: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; [L403] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L309] tmp___1 = isPumpRunning() [L311] 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_product35.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, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 337 SDslu, 290 SDs, 0 SdLazy, 56 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 302 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5120 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...