./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_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/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 [2020-11-28 03:14:20,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:20,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:20,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:20,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:20,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:20,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:20,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:20,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:20,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:20,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:20,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:20,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:20,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:20,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:20,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:20,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:20,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:20,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:20,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:20,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:20,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:20,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:20,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:20,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:20,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:20,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:20,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:20,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:20,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:20,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:20,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:20,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:20,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:20,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:20,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:20,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:20,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:20,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:20,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:20,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:20,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:21,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:21,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:21,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:21,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:21,015 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:21,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:21,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:21,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:21,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:21,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:21,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:21,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:21,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:21,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:21,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:21,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:21,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:21,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:21,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:21,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:21,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:21,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:21,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:21,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:21,020 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_8766c0fd-701a-4060-8a6b-1872afda10e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 609efdf4f988170ff745a87fec8ed7ede6211079 [2020-11-28 03:14:21,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:21,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:21,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:21,279 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:21,280 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:21,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 03:14:21,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/data/2808b3d40/1712eb1e9d4b48d0b60384b6d9f2e1c1/FLAGa09a06b73 [2020-11-28 03:14:21,881 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:21,881 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2020-11-28 03:14:21,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/data/2808b3d40/1712eb1e9d4b48d0b60384b6d9f2e1c1/FLAGa09a06b73 [2020-11-28 03:14:22,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/data/2808b3d40/1712eb1e9d4b48d0b60384b6d9f2e1c1 [2020-11-28 03:14:22,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:22,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:14:22,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:22,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:22,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:22,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4522fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22, skipping insertion in model container [2020-11-28 03:14:22,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:22,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:22,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:22,664 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:22,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:22,820 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:22,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22 WrapperNode [2020-11-28 03:14:22,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:22,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:22,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:14:22,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:14:22,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:22,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:22,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:22,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:22,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... [2020-11-28 03:14:22,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:22,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:22,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:22,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:22,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:23,985 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:23,985 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-28 03:14:23,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:23 BoogieIcfgContainer [2020-11-28 03:14:23,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:23,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:23,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:23,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:23,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:22" (1/3) ... [2020-11-28 03:14:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71318504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:23, skipping insertion in model container [2020-11-28 03:14:23,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:22" (2/3) ... [2020-11-28 03:14:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71318504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:23, skipping insertion in model container [2020-11-28 03:14:23,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:23" (3/3) ... [2020-11-28 03:14:23,996 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-11-28 03:14:24,007 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:24,011 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:14:24,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:14:24,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:24,061 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:14:24,061 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:24,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:24,061 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:24,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:24,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:24,062 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-28 03:14:24,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:14:24,092 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:24,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:24,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:24,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-11-28 03:14:24,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:24,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990271764] [2020-11-28 03:14:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:24,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990271764] [2020-11-28 03:14:24,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:24,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:24,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400059163] [2020-11-28 03:14:24,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:14:24,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:24,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:14:24,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:24,460 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-28 03:14:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:24,514 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-28 03:14:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:14:24,518 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:14:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:24,533 INFO L225 Difference]: With dead ends: 223 [2020-11-28 03:14:24,533 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:14:24,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:14:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-28 03:14:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 03:14:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-28 03:14:24,611 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-28 03:14:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:24,611 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-28 03:14:24,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:14:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-28 03:14:24,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:14:24,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:24,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:24,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:24,617 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:24,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:24,620 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-11-28 03:14:24,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:24,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905457450] [2020-11-28 03:14:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:24,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905457450] [2020-11-28 03:14:24,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:24,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:24,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437867044] [2020-11-28 03:14:24,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:24,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:24,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:24,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:24,777 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-11-28 03:14:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:24,790 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-28 03:14:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:24,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:14:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:24,794 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:14:24,794 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:14:24,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:14:24,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:14:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:14:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 03:14:24,803 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-28 03:14:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:24,803 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 03:14:24,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 03:14:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:14:24,805 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:24,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:24,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:24,807 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:24,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-11-28 03:14:24,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:24,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222254913] [2020-11-28 03:14:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:24,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222254913] [2020-11-28 03:14:24,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:24,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:24,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19427840] [2020-11-28 03:14:24,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:24,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:24,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:24,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:24,950 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 5 states. [2020-11-28 03:14:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:25,036 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-28 03:14:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:25,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 03:14:25,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:25,043 INFO L225 Difference]: With dead ends: 113 [2020-11-28 03:14:25,043 INFO L226 Difference]: Without dead ends: 72 [2020-11-28 03:14:25,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-28 03:14:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-11-28 03:14:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:14:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-28 03:14:25,066 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-11-28 03:14:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:25,066 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-28 03:14:25,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-28 03:14:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:14:25,067 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:25,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:25,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:25,068 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:25,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:25,069 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-11-28 03:14:25,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:25,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14248892] [2020-11-28 03:14:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:25,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14248892] [2020-11-28 03:14:25,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:25,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:25,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106730196] [2020-11-28 03:14:25,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:25,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:25,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:25,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:25,174 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 5 states. [2020-11-28 03:14:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:25,350 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2020-11-28 03:14:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:14:25,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:14:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:25,354 INFO L225 Difference]: With dead ends: 376 [2020-11-28 03:14:25,354 INFO L226 Difference]: Without dead ends: 314 [2020-11-28 03:14:25,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-28 03:14:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2020-11-28 03:14:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-28 03:14:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2020-11-28 03:14:25,396 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2020-11-28 03:14:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:25,397 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2020-11-28 03:14:25,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2020-11-28 03:14:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:14:25,403 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:25,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:25,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:25,404 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-11-28 03:14:25,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:25,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959612420] [2020-11-28 03:14:25,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:25,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:25,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:25,649 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:14:25,649 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:14:25,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:25,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:25 BoogieIcfgContainer [2020-11-28 03:14:25,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:25,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:25,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:25,766 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:25,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:23" (3/4) ... [2020-11-28 03:14:25,769 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:14:25,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8766c0fd-701a-4060-8a6b-1872afda10e1/bin/uautomizer/witness.graphml [2020-11-28 03:14:25,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:25,883 INFO L168 Benchmark]: Toolchain (without parser) took 3671.12 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 71.0 MB in the beginning and 63.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,883 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:25,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.11 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 70.6 MB in the end (delta: 248.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.13 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 66.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,885 INFO L168 Benchmark]: Boogie Preprocessor took 67.51 ms. Allocated memory is still 104.9 MB. Free memory was 66.9 MB in the beginning and 64.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,886 INFO L168 Benchmark]: RCFGBuilder took 1007.32 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 48.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,886 INFO L168 Benchmark]: TraceAbstraction took 1776.63 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 47.9 MB in the beginning and 75.3 MB in the end (delta: -27.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,886 INFO L168 Benchmark]: Witness Printer took 109.93 ms. Allocated memory is still 146.8 MB. Free memory was 75.3 MB in the beginning and 63.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:25,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 611.11 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 70.6 MB in the end (delta: 248.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.13 ms. Allocated memory is still 104.9 MB. Free memory was 70.6 MB in the beginning and 66.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.51 ms. Allocated memory is still 104.9 MB. Free memory was 66.9 MB in the beginning and 64.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1007.32 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 48.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1776.63 ms. Allocated memory was 104.9 MB in the beginning and 146.8 MB in the end (delta: 41.9 MB). Free memory was 47.9 MB in the beginning and 75.3 MB in the end (delta: -27.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 109.93 ms. Allocated memory is still 146.8 MB. Free memory was 75.3 MB in the beginning and 63.8 MB in the end (delta: 11.5 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 0.3s SatisfiabilityAnalysisTime, 0.3s 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...