./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.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_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/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 d4f2c10412898020e67c12179bced9360b20e7f0 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:03:10,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:10,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:10,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:10,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:10,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:11,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:11,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:11,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:11,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:11,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:11,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:11,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:11,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:11,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:11,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:11,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:11,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:11,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:11,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:11,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:11,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:11,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:11,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:11,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:11,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:11,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:11,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:11,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:11,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:11,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:11,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:11,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:11,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:11,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:11,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:11,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:11,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:11,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:11,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:11,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:11,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:03:11,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:11,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:11,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:11,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:11,075 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:11,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:11,076 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:11,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:11,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:11,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:11,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:11,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:11,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:11,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:11,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:11,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:11,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:11,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:11,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:11,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:11,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:11,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:11,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:11,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:11,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:11,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:11,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:03:11,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:11,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:11,082 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_ecff68a0-c385-4f7e-853b-e12140669c9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4f2c10412898020e67c12179bced9360b20e7f0 [2020-11-28 03:03:11,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:11,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:11,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:11,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:11,334 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:11,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2020-11-28 03:03:11,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/data/31a0497db/36af8d4d53a34ed9aa47bd44a0cf77ba/FLAGde2449705 [2020-11-28 03:03:11,924 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:11,929 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2020-11-28 03:03:11,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/data/31a0497db/36af8d4d53a34ed9aa47bd44a0cf77ba/FLAGde2449705 [2020-11-28 03:03:12,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/data/31a0497db/36af8d4d53a34ed9aa47bd44a0cf77ba [2020-11-28 03:03:12,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:12,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:12,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:12,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:12,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:12,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4067b10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12, skipping insertion in model container [2020-11-28 03:03:12,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:12,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:12,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:12,645 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:12,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:12,821 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:12,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12 WrapperNode [2020-11-28 03:03:12,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:12,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:12,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:12,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:12,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:12,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:12,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:12,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:12,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:12,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:13,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:13,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... [2020-11-28 03:03:13,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:13,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:13,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:13,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:13,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/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 03:03:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:03:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:14,299 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:14,300 INFO L298 CfgBuilder]: Removed 130 assume(true) statements. [2020-11-28 03:03:14,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:14 BoogieIcfgContainer [2020-11-28 03:03:14,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:14,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:14,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:14,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:14,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:12" (1/3) ... [2020-11-28 03:03:14,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5776f0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:14, skipping insertion in model container [2020-11-28 03:03:14,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:12" (2/3) ... [2020-11-28 03:03:14,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5776f0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:14, skipping insertion in model container [2020-11-28 03:03:14,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:14" (3/3) ... [2020-11-28 03:03:14,315 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-11-28 03:03:14,323 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:14,330 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:03:14,354 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:03:14,399 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:14,399 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:14,399 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:14,399 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:14,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:14,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:14,400 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:14,400 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-28 03:03:14,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:03:14,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:14,436 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 03:03:14,437 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:14,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:14,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1556631428, now seen corresponding path program 1 times [2020-11-28 03:03:14,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:14,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298970450] [2020-11-28 03:03:14,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:14,709 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 03:03:14,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298970450] [2020-11-28 03:03:14,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:14,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:14,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595458420] [2020-11-28 03:03:14,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:03:14,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:14,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:03:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:14,737 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-28 03:03:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:14,793 INFO L93 Difference]: Finished difference Result 187 states and 278 transitions. [2020-11-28 03:03:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:03:14,795 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:03:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:14,810 INFO L225 Difference]: With dead ends: 187 [2020-11-28 03:03:14,811 INFO L226 Difference]: Without dead ends: 91 [2020-11-28 03:03:14,821 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 03:03:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-11-28 03:03:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-11-28 03:03:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-28 03:03:14,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-11-28 03:03:14,881 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2020-11-28 03:03:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:14,881 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-11-28 03:03:14,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:03:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-11-28 03:03:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:03:14,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:14,885 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 03:03:14,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:03:14,886 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:14,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:14,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1827305115, now seen corresponding path program 1 times [2020-11-28 03:03:14,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:14,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499272234] [2020-11-28 03:03:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:15,124 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 03:03:15,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499272234] [2020-11-28 03:03:15,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:15,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:03:15,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413058546] [2020-11-28 03:03:15,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:15,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:15,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:15,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:15,128 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 3 states. [2020-11-28 03:03:15,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:15,153 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2020-11-28 03:03:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:15,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:03:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:15,156 INFO L225 Difference]: With dead ends: 91 [2020-11-28 03:03:15,156 INFO L226 Difference]: Without dead ends: 41 [2020-11-28 03:03:15,158 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 03:03:15,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-28 03:03:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-28 03:03:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 03:03:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-28 03:03:15,173 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-28 03:03:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:15,174 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-28 03:03:15,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-28 03:03:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:03:15,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:15,176 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 03:03:15,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:03:15,178 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:15,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2096218593, now seen corresponding path program 1 times [2020-11-28 03:03:15,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:15,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103063030] [2020-11-28 03:03:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:15,327 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 03:03:15,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103063030] [2020-11-28 03:03:15,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:15,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:15,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570888720] [2020-11-28 03:03:15,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:15,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:15,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:15,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:15,330 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 3 states. [2020-11-28 03:03:15,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:15,393 INFO L93 Difference]: Finished difference Result 111 states and 162 transitions. [2020-11-28 03:03:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:15,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:03:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:15,396 INFO L225 Difference]: With dead ends: 111 [2020-11-28 03:03:15,398 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 03:03:15,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 03:03:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-11-28 03:03:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:03:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2020-11-28 03:03:15,418 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 24 [2020-11-28 03:03:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:15,418 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2020-11-28 03:03:15,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2020-11-28 03:03:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:03:15,420 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:15,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:15,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:03:15,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:15,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:15,422 INFO L82 PathProgramCache]: Analyzing trace with hash 68887907, now seen corresponding path program 1 times [2020-11-28 03:03:15,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:15,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436034542] [2020-11-28 03:03:15,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:15,526 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 03:03:15,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436034542] [2020-11-28 03:03:15,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:15,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:15,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452534030] [2020-11-28 03:03:15,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:15,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:15,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:15,528 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2020-11-28 03:03:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:15,583 INFO L93 Difference]: Finished difference Result 183 states and 272 transitions. [2020-11-28 03:03:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:15,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:03:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:15,584 INFO L225 Difference]: With dead ends: 183 [2020-11-28 03:03:15,585 INFO L226 Difference]: Without dead ends: 117 [2020-11-28 03:03:15,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-28 03:03:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2020-11-28 03:03:15,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:03:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 167 transitions. [2020-11-28 03:03:15,599 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 167 transitions. Word has length 25 [2020-11-28 03:03:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:15,599 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 167 transitions. [2020-11-28 03:03:15,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:15,599 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 167 transitions. [2020-11-28 03:03:15,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:03:15,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:15,601 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 03:03:15,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:03:15,601 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:15,602 INFO L82 PathProgramCache]: Analyzing trace with hash -192728908, now seen corresponding path program 1 times [2020-11-28 03:03:15,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:15,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800148483] [2020-11-28 03:03:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:15,678 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 03:03:15,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800148483] [2020-11-28 03:03:15,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:15,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:15,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192964149] [2020-11-28 03:03:15,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:15,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:15,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:15,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:15,680 INFO L87 Difference]: Start difference. First operand 115 states and 167 transitions. Second operand 5 states. [2020-11-28 03:03:15,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:15,851 INFO L93 Difference]: Finished difference Result 639 states and 947 transitions. [2020-11-28 03:03:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:03:15,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:03:15,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:15,855 INFO L225 Difference]: With dead ends: 639 [2020-11-28 03:03:15,855 INFO L226 Difference]: Without dead ends: 530 [2020-11-28 03:03:15,856 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 03:03:15,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-28 03:03:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 210. [2020-11-28 03:03:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-28 03:03:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 296 transitions. [2020-11-28 03:03:15,908 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 296 transitions. Word has length 27 [2020-11-28 03:03:15,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:15,909 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 296 transitions. [2020-11-28 03:03:15,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 296 transitions. [2020-11-28 03:03:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:03:15,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:15,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:15,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:03:15,911 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:15,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:15,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1892992650, now seen corresponding path program 1 times [2020-11-28 03:03:15,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:15,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248668980] [2020-11-28 03:03:15,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:16,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:16,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:16,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:16,132 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:03:16,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:03:16,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:16 BoogieIcfgContainer [2020-11-28 03:03:16,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:16,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:16,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:16,266 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:16,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:14" (3/4) ... [2020-11-28 03:03:16,269 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:03:16,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ecff68a0-c385-4f7e-853b-e12140669c9c/bin/uautomizer/witness.graphml [2020-11-28 03:03:16,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:16,398 INFO L168 Benchmark]: Toolchain (without parser) took 4136.88 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 74.4 MB in the beginning and 95.9 MB in the end (delta: -21.5 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,403 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:16,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.62 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 68.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.68 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 65.3 MB in the end (delta: 3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:16,405 INFO L168 Benchmark]: Boogie Preprocessor took 94.65 ms. Allocated memory is still 102.8 MB. Free memory was 65.3 MB in the beginning and 62.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,405 INFO L168 Benchmark]: RCFGBuilder took 1280.69 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 62.9 MB in the beginning and 61.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,406 INFO L168 Benchmark]: TraceAbstraction took 1960.36 ms. Allocated memory is still 125.8 MB. Free memory was 61.5 MB in the beginning and 44.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,407 INFO L168 Benchmark]: Witness Printer took 130.29 ms. Allocated memory is still 125.8 MB. Free memory was 44.8 MB in the beginning and 95.9 MB in the end (delta: -51.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:16,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 102.8 MB. Free memory is still 60.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.62 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 68.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.68 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 65.3 MB in the end (delta: 3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.65 ms. Allocated memory is still 102.8 MB. Free memory was 65.3 MB in the beginning and 62.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1280.69 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 62.9 MB in the beginning and 61.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1960.36 ms. Allocated memory is still 125.8 MB. Free memory was 61.5 MB in the beginning and 44.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 130.29 ms. Allocated memory is still 125.8 MB. Free memory was 44.8 MB in the beginning and 95.9 MB in the end (delta: -51.1 MB). Peak memory consumption was 10.8 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: [L42] int cleanupTimeShifts = 4; [L361] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L599] int pumpRunning = 0; [L600] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L785] int splverifierCounter ; [L786] int tmp ; [L787] int tmp___0 ; [L788] int tmp___1 ; [L789] int tmp___2 ; [L792] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L796] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] tmp = __VERIFIER_nondet_int() [L804] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] COND TRUE waterLevel < 2 [L870] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L812] tmp___0 = __VERIFIER_nondet_int() [L814] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L822] tmp___2 = __VERIFIER_nondet_int() [L824] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L772] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L779] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L606] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L613] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L705] int retValue_acc ; [L708] retValue_acc = pumpRunning [L709] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L175] tmp___1 = isPumpRunning() [L177] 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_product43.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, 98 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 377 SDslu, 314 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred 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, 326 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s 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...