./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/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 5f050ff3359f4c5814c7559cf768b732b843fd60 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:12:05,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:12:05,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:12:05,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:12:05,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:12:05,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:12:05,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:12:05,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:12:05,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:12:05,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:12:05,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:12:05,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:12:05,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:12:05,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:12:05,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:12:05,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:12:05,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:12:05,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:12:05,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:12:05,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:12:05,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:12:05,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:12:05,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:12:05,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:12:05,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:12:05,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:12:05,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:12:05,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:12:05,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:12:05,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:12:05,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:12:05,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:12:05,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:12:05,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:12:05,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:12:05,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:12:05,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:12:05,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:12:05,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:12:05,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:12:05,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:12:05,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:12:05,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:12:05,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:12:05,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:12:05,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:12:05,318 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:12:05,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:12:05,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:12:05,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:12:05,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:12:05,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:12:05,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:12:05,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:12:05,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:12:05,321 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:12:05,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:12:05,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:12:05,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:12:05,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:12:05,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:12:05,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:12:05,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:12:05,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:12:05,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:12:05,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:12:05,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:12:05,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:12:05,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:12:05,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:12:05,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:12:05,325 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_74c25476-03af-484e-83a4-a1abe4917fda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f050ff3359f4c5814c7559cf768b732b843fd60 [2020-11-28 03:12:05,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:12:05,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:12:05,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:12:05,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:12:05,667 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:12:05,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-28 03:12:05,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/data/516c4a2af/a5b4310c2df44bfa9f48e0f9fdac3d52/FLAGb3c07460f [2020-11-28 03:12:06,320 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:12:06,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2020-11-28 03:12:06,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/data/516c4a2af/a5b4310c2df44bfa9f48e0f9fdac3d52/FLAGb3c07460f [2020-11-28 03:12:06,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/data/516c4a2af/a5b4310c2df44bfa9f48e0f9fdac3d52 [2020-11-28 03:12:06,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:12:06,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:12:06,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:06,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:12:06,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:12:06,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:06" (1/1) ... [2020-11-28 03:12:06,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcfffcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:06, skipping insertion in model container [2020-11-28 03:12:06,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:06" (1/1) ... [2020-11-28 03:12:06,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:12:06,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:12:07,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:07,132 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:12:07,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:07,273 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:12:07,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07 WrapperNode [2020-11-28 03:12:07,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:07,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:07,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:12:07,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:12:07,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:07,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:12:07,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:12:07,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:12:07,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... [2020-11-28 03:12:07,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:12:07,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:12:07,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:12:07,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:12:07,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/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 03:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:12:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:12:08,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:12:08,577 INFO L298 CfgBuilder]: Removed 210 assume(true) statements. [2020-11-28 03:12:08,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:08 BoogieIcfgContainer [2020-11-28 03:12:08,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:12:08,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:12:08,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:12:08,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:12:08,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:12:06" (1/3) ... [2020-11-28 03:12:08,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c426971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:08, skipping insertion in model container [2020-11-28 03:12:08,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:07" (2/3) ... [2020-11-28 03:12:08,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c426971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:12:08, skipping insertion in model container [2020-11-28 03:12:08,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:08" (3/3) ... [2020-11-28 03:12:08,589 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-11-28 03:12:08,602 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:12:08,608 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:12:08,624 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:12:08,660 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:12:08,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:12:08,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:12:08,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:12:08,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:12:08,661 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:12:08,661 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:12:08,662 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:12:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-11-28 03:12:08,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:12:08,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:08,700 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 03:12:08,701 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:08,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1173873591, now seen corresponding path program 1 times [2020-11-28 03:12:08,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:08,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869407426] [2020-11-28 03:12:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,100 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 03:12:09,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869407426] [2020-11-28 03:12:09,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:09,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267620078] [2020-11-28 03:12:09,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:12:09,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:12:09,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:12:09,129 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-11-28 03:12:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,196 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-11-28 03:12:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:12:09,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:12:09,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,225 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:12:09,225 INFO L226 Difference]: Without dead ends: 133 [2020-11-28 03:12:09,228 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 03:12:09,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-28 03:12:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-11-28 03:12:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-28 03:12:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-11-28 03:12:09,288 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2020-11-28 03:12:09,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,288 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-11-28 03:12:09,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:12:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-11-28 03:12:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:12:09,290 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,290 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 03:12:09,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:12:09,291 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,291 INFO L82 PathProgramCache]: Analyzing trace with hash 262842838, now seen corresponding path program 1 times [2020-11-28 03:12:09,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79635049] [2020-11-28 03:12:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,438 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 03:12:09,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79635049] [2020-11-28 03:12:09,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:12:09,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407826274] [2020-11-28 03:12:09,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:09,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:09,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:09,442 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-11-28 03:12:09,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,462 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-11-28 03:12:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:09,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:12:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,467 INFO L225 Difference]: With dead ends: 133 [2020-11-28 03:12:09,467 INFO L226 Difference]: Without dead ends: 55 [2020-11-28 03:12:09,469 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 03:12:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-28 03:12:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-28 03:12:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-28 03:12:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-11-28 03:12:09,477 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2020-11-28 03:12:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,477 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-11-28 03:12:09,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-11-28 03:12:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:12:09,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,480 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 03:12:09,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:12:09,481 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,482 INFO L82 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times [2020-11-28 03:12:09,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919189053] [2020-11-28 03:12:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,652 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 03:12:09,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919189053] [2020-11-28 03:12:09,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:12:09,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467299820] [2020-11-28 03:12:09,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:09,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:09,656 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 5 states. [2020-11-28 03:12:09,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,758 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-11-28 03:12:09,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:12:09,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 03:12:09,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,768 INFO L225 Difference]: With dead ends: 129 [2020-11-28 03:12:09,768 INFO L226 Difference]: Without dead ends: 80 [2020-11-28 03:12:09,769 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 03:12:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-28 03:12:09,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2020-11-28 03:12:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-28 03:12:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2020-11-28 03:12:09,791 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2020-11-28 03:12:09,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,792 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2020-11-28 03:12:09,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2020-11-28 03:12:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:12:09,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:09,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:12:09,798 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times [2020-11-28 03:12:09,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359494764] [2020-11-28 03:12:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:09,898 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 03:12:09,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359494764] [2020-11-28 03:12:09,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:09,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:12:09,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019880746] [2020-11-28 03:12:09,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:12:09,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:09,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:12:09,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:12:09,901 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2020-11-28 03:12:09,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:09,960 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2020-11-28 03:12:09,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:12:09,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 03:12:09,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:09,963 INFO L225 Difference]: With dead ends: 169 [2020-11-28 03:12:09,963 INFO L226 Difference]: Without dead ends: 99 [2020-11-28 03:12:09,964 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 03:12:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-28 03:12:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-11-28 03:12:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-28 03:12:09,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2020-11-28 03:12:09,976 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2020-11-28 03:12:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:09,977 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2020-11-28 03:12:09,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:12:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2020-11-28 03:12:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:12:09,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:09,979 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 03:12:09,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:12:09,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times [2020-11-28 03:12:09,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:09,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632255296] [2020-11-28 03:12:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:10,103 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 03:12:10,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632255296] [2020-11-28 03:12:10,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:10,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:10,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060195942] [2020-11-28 03:12:10,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:12:10,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:10,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:12:10,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:10,106 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 5 states. [2020-11-28 03:12:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:10,323 INFO L93 Difference]: Finished difference Result 507 states and 739 transitions. [2020-11-28 03:12:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:12:10,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:12:10,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:10,329 INFO L225 Difference]: With dead ends: 507 [2020-11-28 03:12:10,329 INFO L226 Difference]: Without dead ends: 416 [2020-11-28 03:12:10,330 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 03:12:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-11-28 03:12:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 165. [2020-11-28 03:12:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-11-28 03:12:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions. [2020-11-28 03:12:10,387 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 27 [2020-11-28 03:12:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:10,388 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 230 transitions. [2020-11-28 03:12:10,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:12:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions. [2020-11-28 03:12:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:12:10,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:10,390 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 03:12:10,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:12:10,390 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times [2020-11-28 03:12:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388415509] [2020-11-28 03:12:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:10,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:10,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:10,630 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:10,630 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:12:10,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:12:10,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:12:10 BoogieIcfgContainer [2020-11-28 03:12:10,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:12:10,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:10,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:10,732 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:10,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:08" (3/4) ... [2020-11-28 03:12:10,735 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:12:10,850 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_74c25476-03af-484e-83a4-a1abe4917fda/bin/uautomizer/witness.graphml [2020-11-28 03:12:10,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:10,855 INFO L168 Benchmark]: Toolchain (without parser) took 4111.12 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 57.1 MB in the beginning and 74.5 MB in the end (delta: -17.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,855 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:10,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.37 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 56.1 MB in the end (delta: 786.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.42 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 52.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,857 INFO L168 Benchmark]: Boogie Preprocessor took 52.01 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 48.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,858 INFO L168 Benchmark]: RCFGBuilder took 1166.84 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 48.9 MB in the beginning and 70.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,858 INFO L168 Benchmark]: TraceAbstraction took 2149.31 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 86.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,859 INFO L168 Benchmark]: Witness Printer took 118.68 ms. Allocated memory is still 134.2 MB. Free memory was 86.0 MB in the beginning and 74.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:10,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.37 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 56.1 MB in the end (delta: 786.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.42 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 52.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.01 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 48.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1166.84 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 48.9 MB in the beginning and 70.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2149.31 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 69.3 MB in the beginning and 86.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 118.68 ms. Allocated memory is still 134.2 MB. Free memory was 86.0 MB in the beginning and 74.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int waterLevel = 1; [L132] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L449] int cleanupTimeShifts = 4; [L784] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L524] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = valid_product() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] int splverifierCounter ; [L548] int tmp ; [L549] int tmp___0 ; [L550] int tmp___1 ; [L551] int tmp___2 ; [L554] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L564] tmp = __VERIFIER_nondet_int() [L566] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L149] COND TRUE waterLevel < 2 [L150] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] tmp___0 = __VERIFIER_nondet_int() [L576] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L584] tmp___2 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___2)) [L592] tmp___1 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L238] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L245] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L170] int retValue_acc ; [L173] retValue_acc = methaneLevelCritical [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L202] int retValue_acc ; [L205] retValue_acc = waterLevel [L206] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L362] int retValue_acc ; [L365] retValue_acc = pumpRunning [L366] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] 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_product48.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, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 732 SDslu, 397 SDs, 0 SdLazy, 65 SolverSat, 20 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=165occurred 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, 257 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 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...