./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/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 0c75cc0efa833cee2ae88b3635c1f8807d970760 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:00:59,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:00:59,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:00,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:00,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:00,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:00,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:00,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:00,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:00,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:00,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:00,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:00,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:00,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:00,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:00,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:00,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:00,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:00,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:00,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:00,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:00,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:00,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:00,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:00,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:00,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:00,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:00,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:00,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:00,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:00,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:00,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:00,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:00,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:00,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:00,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:00,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:00,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:00,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:00,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:00,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:00,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:00,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:00,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:00,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:00,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:00,085 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:00,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:00,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:00,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:00,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:00,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:00,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:00,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:00,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:00,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:00,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:00,087 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:00,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:00,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:00,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:00,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:00,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:00,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:00,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:00,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:00,090 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_ded8d50a-92c4-4411-bfbd-fbc80998b683/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2020-11-28 03:01:00,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:00,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:00,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:00,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:00,391 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:00,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2020-11-28 03:01:00,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/data/5fb259cfc/0be4cb2af3b246fd9061262a8da2e1f1/FLAGfcdb1d554 [2020-11-28 03:01:00,917 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:00,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2020-11-28 03:01:00,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/data/5fb259cfc/0be4cb2af3b246fd9061262a8da2e1f1/FLAGfcdb1d554 [2020-11-28 03:01:01,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/data/5fb259cfc/0be4cb2af3b246fd9061262a8da2e1f1 [2020-11-28 03:01:01,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:01,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:01,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:01,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:01,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:01,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abf236f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01, skipping insertion in model container [2020-11-28 03:01:01,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:01,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:01,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:01,711 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:01,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:01,881 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:01,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01 WrapperNode [2020-11-28 03:01:01,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:01,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:01,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:01,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:01,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:01,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:01,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:02,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:02,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:02,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:02,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:02,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:02,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/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 03:01:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:02,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:03,597 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:03,597 INFO L298 CfgBuilder]: Removed 366 assume(true) statements. [2020-11-28 03:01:03,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:03 BoogieIcfgContainer [2020-11-28 03:01:03,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:03,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:03,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:03,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:03,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:01" (1/3) ... [2020-11-28 03:01:03,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e50da06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:03, skipping insertion in model container [2020-11-28 03:01:03,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (2/3) ... [2020-11-28 03:01:03,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e50da06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:03, skipping insertion in model container [2020-11-28 03:01:03,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:03" (3/3) ... [2020-11-28 03:01:03,610 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-11-28 03:01:03,624 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:03,629 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:01:03,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:01:03,677 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:03,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:03,677 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:03,677 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:03,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:03,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:03,678 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:03,678 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:03,696 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-11-28 03:01:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:01:03,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:03,703 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 03:01:03,703 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:03,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1225666969, now seen corresponding path program 1 times [2020-11-28 03:01:03,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:03,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856144020] [2020-11-28 03:01:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:03,946 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 03:01:03,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856144020] [2020-11-28 03:01:03,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:03,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:01:03,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402891771] [2020-11-28 03:01:03,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:01:03,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:03,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:01:03,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:01:03,967 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 2 states. [2020-11-28 03:01:04,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:04,014 INFO L93 Difference]: Finished difference Result 463 states and 692 transitions. [2020-11-28 03:01:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:01:04,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:01:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:04,027 INFO L225 Difference]: With dead ends: 463 [2020-11-28 03:01:04,028 INFO L226 Difference]: Without dead ends: 229 [2020-11-28 03:01:04,032 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 03:01:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-11-28 03:01:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-11-28 03:01:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-28 03:01:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2020-11-28 03:01:04,091 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2020-11-28 03:01:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:04,091 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2020-11-28 03:01:04,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:01:04,091 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2020-11-28 03:01:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:01:04,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:04,093 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 03:01:04,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:04,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:04,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:04,095 INFO L82 PathProgramCache]: Analyzing trace with hash -329174554, now seen corresponding path program 1 times [2020-11-28 03:01:04,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:04,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308626104] [2020-11-28 03:01:04,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:04,234 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 03:01:04,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308626104] [2020-11-28 03:01:04,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:04,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:04,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921865495] [2020-11-28 03:01:04,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:04,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:04,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:04,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:04,237 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2020-11-28 03:01:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:04,256 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2020-11-28 03:01:04,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:04,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:01:04,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:04,266 INFO L225 Difference]: With dead ends: 229 [2020-11-28 03:01:04,266 INFO L226 Difference]: Without dead ends: 87 [2020-11-28 03:01:04,270 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 03:01:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-28 03:01:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-28 03:01:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 03:01:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2020-11-28 03:01:04,282 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2020-11-28 03:01:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:04,282 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2020-11-28 03:01:04,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2020-11-28 03:01:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:01:04,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:04,286 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 03:01:04,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:01:04,287 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:04,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:04,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2020-11-28 03:01:04,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:04,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805045901] [2020-11-28 03:01:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:04,476 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 03:01:04,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805045901] [2020-11-28 03:01:04,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:04,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:01:04,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084542347] [2020-11-28 03:01:04,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:04,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:04,479 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 5 states. [2020-11-28 03:01:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:04,579 INFO L93 Difference]: Finished difference Result 193 states and 285 transitions. [2020-11-28 03:01:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:01:04,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 03:01:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:04,581 INFO L225 Difference]: With dead ends: 193 [2020-11-28 03:01:04,581 INFO L226 Difference]: Without dead ends: 112 [2020-11-28 03:01:04,582 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 03:01:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-11-28 03:01:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-11-28 03:01:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-28 03:01:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2020-11-28 03:01:04,598 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2020-11-28 03:01:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:04,599 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2020-11-28 03:01:04,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2020-11-28 03:01:04,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:01:04,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:04,605 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 03:01:04,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:01:04,606 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:04,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:04,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2020-11-28 03:01:04,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:04,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178550552] [2020-11-28 03:01:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:04,726 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 03:01:04,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178550552] [2020-11-28 03:01:04,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:04,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:01:04,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377591684] [2020-11-28 03:01:04,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:04,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:04,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:04,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:04,729 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2020-11-28 03:01:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:04,795 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2020-11-28 03:01:04,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:04,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-28 03:01:04,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:04,797 INFO L225 Difference]: With dead ends: 218 [2020-11-28 03:01:04,797 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 03:01:04,798 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 03:01:04,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 03:01:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-11-28 03:01:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-28 03:01:04,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-11-28 03:01:04,811 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2020-11-28 03:01:04,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:04,812 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-28 03:01:04,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:04,812 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2020-11-28 03:01:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:01:04,813 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:04,813 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 03:01:04,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:01:04,814 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:04,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:04,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2020-11-28 03:01:04,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:04,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710455651] [2020-11-28 03:01:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:04,889 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 03:01:04,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710455651] [2020-11-28 03:01:04,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:04,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:01:04,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217703579] [2020-11-28 03:01:04,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:01:04,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:04,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:01:04,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:04,891 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 5 states. [2020-11-28 03:01:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:05,069 INFO L93 Difference]: Finished difference Result 578 states and 838 transitions. [2020-11-28 03:01:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:01:05,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:01:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:05,073 INFO L225 Difference]: With dead ends: 578 [2020-11-28 03:01:05,073 INFO L226 Difference]: Without dead ends: 470 [2020-11-28 03:01:05,075 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 03:01:05,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-11-28 03:01:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 183. [2020-11-28 03:01:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-28 03:01:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2020-11-28 03:01:05,108 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 27 [2020-11-28 03:01:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:05,108 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2020-11-28 03:01:05,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:01:05,108 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2020-11-28 03:01:05,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:01:05,110 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:05,110 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 03:01:05,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:01:05,110 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:05,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:05,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2020-11-28 03:01:05,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:05,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681641912] [2020-11-28 03:01:05,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:05,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:05,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:05,332 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:05,332 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:01:05,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:01:05,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:05 BoogieIcfgContainer [2020-11-28 03:01:05,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:05,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:05,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:05,456 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:05,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:03" (3/4) ... [2020-11-28 03:01:05,458 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:01:05,569 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ded8d50a-92c4-4411-bfbd-fbc80998b683/bin/uautomizer/witness.graphml [2020-11-28 03:01:05,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:05,577 INFO L168 Benchmark]: Toolchain (without parser) took 4321.10 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 64.8 MB in the beginning and 55.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,578 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:05,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.22 ms. Allocated memory is still 102.8 MB. Free memory was 64.6 MB in the beginning and 66.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.84 ms. Allocated memory is still 102.8 MB. Free memory was 66.1 MB in the beginning and 60.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,580 INFO L168 Benchmark]: Boogie Preprocessor took 70.35 ms. Allocated memory is still 102.8 MB. Free memory was 60.1 MB in the beginning and 55.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,580 INFO L168 Benchmark]: RCFGBuilder took 1531.29 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 55.6 MB in the beginning and 86.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,581 INFO L168 Benchmark]: TraceAbstraction took 1847.52 ms. Allocated memory is still 132.1 MB. Free memory was 86.5 MB in the beginning and 67.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,582 INFO L168 Benchmark]: Witness Printer took 114.17 ms. Allocated memory is still 132.1 MB. Free memory was 67.0 MB in the beginning and 55.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:05,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.22 ms. Allocated memory is still 102.8 MB. Free memory was 64.6 MB in the beginning and 66.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.84 ms. Allocated memory is still 102.8 MB. Free memory was 66.1 MB in the beginning and 60.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.35 ms. Allocated memory is still 102.8 MB. Free memory was 60.1 MB in the beginning and 55.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1531.29 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 55.6 MB in the beginning and 86.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1847.52 ms. Allocated memory is still 132.1 MB. Free memory was 86.5 MB in the beginning and 67.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 114.17 ms. Allocated memory is still 132.1 MB. Free memory was 67.0 MB in the beginning and 55.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L371] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L336] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L100] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1020] tmp___1 = isPumpRunning() [L1022] 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_product64.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, 236 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 867 SDtfs, 1013 SDslu, 517 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=0, 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, 293 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 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...