./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/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 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:00:20,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:00:20,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:00:20,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:00:20,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:00:20,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:00:20,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:00:20,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:00:20,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:00:20,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:00:20,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:00:20,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:00:20,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:00:20,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:00:20,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:00:20,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:00:20,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:00:20,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:00:20,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:00:20,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:00:20,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:00:20,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:00:20,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:00:20,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:00:20,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:00:20,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:00:20,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:00:20,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:00:20,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:00:20,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:00:20,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:00:20,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:00:20,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:00:20,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:00:20,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:00:20,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:00:20,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:00:20,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:00:20,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:00:20,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:00:20,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:00:20,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:00:20,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:00:20,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:00:20,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:00:20,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:00:20,397 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:00:20,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:00:20,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:00:20,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:00:20,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:00:20,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:00:20,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:00:20,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:00:20,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:00:20,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:00:20,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:00:20,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:00:20,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:00:20,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:00:20,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:00:20,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:00:20,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:00:20,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:00:20,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:00:20,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:00:20,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:00:20,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:00:20,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:00:20,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:00:20,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:00:20,412 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_5b6eda29-3499-4482-bf4f-ce3a56084709/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e [2020-12-01 15:00:20,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:00:20,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:00:20,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:00:20,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:00:20,690 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:00:20,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2020-12-01 15:00:20,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/data/02824dfb4/baadeced68f3477192f6e948fdb1729d/FLAGede16ee16 [2020-12-01 15:00:21,337 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:00:21,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2020-12-01 15:00:21,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/data/02824dfb4/baadeced68f3477192f6e948fdb1729d/FLAGede16ee16 [2020-12-01 15:00:21,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/data/02824dfb4/baadeced68f3477192f6e948fdb1729d [2020-12-01 15:00:21,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:00:21,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:00:21,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:00:21,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:00:21,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:00:21,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:00:21" (1/1) ... [2020-12-01 15:00:21,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fbada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:21, skipping insertion in model container [2020-12-01 15:00:21,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:00:21" (1/1) ... [2020-12-01 15:00:21,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:00:21,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:00:22,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:22,113 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:00:22,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:00:22,222 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:00:22,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22 WrapperNode [2020-12-01 15:00:22,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:00:22,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:22,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:00:22,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:00:22,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:00:22,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:00:22,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:00:22,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:00:22,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... [2020-12-01 15:00:22,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:00:22,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:00:22,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:00:22,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:00:22,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/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 [2020-12-01 15:00:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:00:22,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:00:22,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:00:22,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:00:23,477 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:00:23,477 INFO L298 CfgBuilder]: Removed 208 assume(true) statements. [2020-12-01 15:00:23,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:23 BoogieIcfgContainer [2020-12-01 15:00:23,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:00:23,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:00:23,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:00:23,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:00:23,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:00:21" (1/3) ... [2020-12-01 15:00:23,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40921241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:23, skipping insertion in model container [2020-12-01 15:00:23,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:00:22" (2/3) ... [2020-12-01 15:00:23,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40921241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:00:23, skipping insertion in model container [2020-12-01 15:00:23,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:23" (3/3) ... [2020-12-01 15:00:23,491 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-12-01 15:00:23,508 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:00:23,511 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-01 15:00:23,522 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-01 15:00:23,547 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:00:23,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:00:23,548 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:00:23,548 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:00:23,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:00:23,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:00:23,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:00:23,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:00:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-12-01 15:00:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 15:00:23,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:23,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:23,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:23,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1980071850, now seen corresponding path program 1 times [2020-12-01 15:00:23,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:23,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585509378] [2020-12-01 15:00:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:23,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585509378] [2020-12-01 15:00:23,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:23,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:23,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872518008] [2020-12-01 15:00:23,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:00:23,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:23,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:00:23,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:00:23,838 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-12-01 15:00:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:23,871 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-12-01 15:00:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:00:23,873 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-01 15:00:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:23,883 INFO L225 Difference]: With dead ends: 271 [2020-12-01 15:00:23,884 INFO L226 Difference]: Without dead ends: 133 [2020-12-01 15:00:23,887 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 [2020-12-01 15:00:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-01 15:00:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-12-01 15:00:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-12-01 15:00:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-12-01 15:00:23,932 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2020-12-01 15:00:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:23,932 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-12-01 15:00:23,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:00:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-12-01 15:00:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 15:00:23,934 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:23,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:00:23,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:00:23,938 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:23,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1403864693, now seen corresponding path program 1 times [2020-12-01 15:00:23,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:23,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198901469] [2020-12-01 15:00:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:24,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198901469] [2020-12-01 15:00:24,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:24,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:00:24,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701519340] [2020-12-01 15:00:24,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:24,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:24,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:24,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:24,061 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-12-01 15:00:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:24,075 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-12-01 15:00:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:24,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-01 15:00:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:24,077 INFO L225 Difference]: With dead ends: 133 [2020-12-01 15:00:24,077 INFO L226 Difference]: Without dead ends: 55 [2020-12-01 15:00:24,078 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 [2020-12-01 15:00:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-12-01 15:00:24,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-12-01 15:00:24,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-01 15:00:24,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-12-01 15:00:24,084 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2020-12-01 15:00:24,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:24,085 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-12-01 15:00:24,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-12-01 15:00:24,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 15:00:24,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:24,086 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] [2020-12-01 15:00:24,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:00:24,087 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:24,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times [2020-12-01 15:00:24,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:24,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222984487] [2020-12-01 15:00:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:24,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222984487] [2020-12-01 15:00:24,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:24,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:24,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250163482] [2020-12-01 15:00:24,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:24,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:24,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:24,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:24,212 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 3 states. [2020-12-01 15:00:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:24,246 INFO L93 Difference]: Finished difference Result 153 states and 225 transitions. [2020-12-01 15:00:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:24,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-01 15:00:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:24,252 INFO L225 Difference]: With dead ends: 153 [2020-12-01 15:00:24,253 INFO L226 Difference]: Without dead ends: 104 [2020-12-01 15:00:24,253 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 [2020-12-01 15:00:24,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-01 15:00:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2020-12-01 15:00:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-01 15:00:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 147 transitions. [2020-12-01 15:00:24,278 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 147 transitions. Word has length 24 [2020-12-01 15:00:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:24,279 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 147 transitions. [2020-12-01 15:00:24,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 147 transitions. [2020-12-01 15:00:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 15:00:24,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:24,281 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] [2020-12-01 15:00:24,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:00:24,281 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:24,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times [2020-12-01 15:00:24,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:24,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933130715] [2020-12-01 15:00:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:24,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933130715] [2020-12-01 15:00:24,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:24,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:00:24,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804983480] [2020-12-01 15:00:24,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:00:24,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:24,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:00:24,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:00:24,384 INFO L87 Difference]: Start difference. First operand 100 states and 147 transitions. Second operand 3 states. [2020-12-01 15:00:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:24,459 INFO L93 Difference]: Finished difference Result 239 states and 356 transitions. [2020-12-01 15:00:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:00:24,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-01 15:00:24,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:24,461 INFO L225 Difference]: With dead ends: 239 [2020-12-01 15:00:24,461 INFO L226 Difference]: Without dead ends: 145 [2020-12-01 15:00:24,462 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 [2020-12-01 15:00:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-01 15:00:24,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-12-01 15:00:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-01 15:00:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 207 transitions. [2020-12-01 15:00:24,494 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 207 transitions. Word has length 26 [2020-12-01 15:00:24,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:24,494 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 207 transitions. [2020-12-01 15:00:24,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:00:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 207 transitions. [2020-12-01 15:00:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 15:00:24,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:24,499 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] [2020-12-01 15:00:24,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:00:24,500 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:24,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:24,500 INFO L82 PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times [2020-12-01 15:00:24,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:24,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880637495] [2020-12-01 15:00:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:00:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:00:24,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880637495] [2020-12-01 15:00:24,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:00:24,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:00:24,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451103217] [2020-12-01 15:00:24,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:00:24,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:00:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:00:24,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:00:24,627 INFO L87 Difference]: Start difference. First operand 143 states and 207 transitions. Second operand 5 states. [2020-12-01 15:00:24,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:00:24,789 INFO L93 Difference]: Finished difference Result 757 states and 1113 transitions. [2020-12-01 15:00:24,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:00:24,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-01 15:00:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:00:24,796 INFO L225 Difference]: With dead ends: 757 [2020-12-01 15:00:24,796 INFO L226 Difference]: Without dead ends: 620 [2020-12-01 15:00:24,800 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 [2020-12-01 15:00:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-12-01 15:00:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 240. [2020-12-01 15:00:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-12-01 15:00:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 338 transitions. [2020-12-01 15:00:24,854 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 338 transitions. Word has length 27 [2020-12-01 15:00:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:00:24,855 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 338 transitions. [2020-12-01 15:00:24,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:00:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 338 transitions. [2020-12-01 15:00:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 15:00:24,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:00:24,860 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] [2020-12-01 15:00:24,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:00:24,860 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:00:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:00:24,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times [2020-12-01 15:00:24,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:00:24,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2944154] [2020-12-01 15:00:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:00:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:00:24,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:00:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:00:25,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:00:25,107 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:00:25,107 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:00:25,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:00:25,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:00:25 BoogieIcfgContainer [2020-12-01 15:00:25,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:00:25,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:00:25,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:00:25,236 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:00:25,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:00:23" (3/4) ... [2020-12-01 15:00:25,239 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:00:25,348 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b6eda29-3499-4482-bf4f-ce3a56084709/bin/uautomizer/witness.graphml [2020-12-01 15:00:25,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:00:25,350 INFO L168 Benchmark]: Toolchain (without parser) took 3692.80 ms. Allocated memory was 86.0 MB in the beginning and 148.9 MB in the end (delta: 62.9 MB). Free memory was 54.7 MB in the beginning and 111.6 MB in the end (delta: -56.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,350 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:00:25,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.33 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 78.7 MB in the end (delta: -24.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.04 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 74.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,352 INFO L168 Benchmark]: Boogie Preprocessor took 84.66 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 71.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,352 INFO L168 Benchmark]: RCFGBuilder took 1089.91 ms. Allocated memory is still 113.2 MB. Free memory was 71.5 MB in the beginning and 73.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,353 INFO L168 Benchmark]: TraceAbstraction took 1751.84 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 73.6 MB in the beginning and 65.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,353 INFO L168 Benchmark]: Witness Printer took 113.36 ms. Allocated memory is still 148.9 MB. Free memory was 65.0 MB in the beginning and 111.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:00:25,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 564.33 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 78.7 MB in the end (delta: -24.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.04 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 74.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.66 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 71.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1089.91 ms. Allocated memory is still 113.2 MB. Free memory was 71.5 MB in the beginning and 73.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1751.84 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 73.6 MB in the beginning and 65.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * Witness Printer took 113.36 ms. Allocated memory is still 148.9 MB. Free memory was 65.0 MB in the beginning and 111.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 2.6 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: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___2)) [L601] tmp___1 = __VERIFIER_nondet_int() [L603] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L830] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L639] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L646] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L938] int tmp ; [L939] int tmp___0 ; [L940] int tmp___1 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L950] tmp___0 = getWaterLevel() [L952] COND TRUE tmp___0 == 2 [L763] int retValue_acc ; [L766] retValue_acc = pumpRunning [L767] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L954] tmp___1 = isPumpRunning() [L956] 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_product47.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: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 559 SDtfs, 497 SDslu, 431 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred 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, 386 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 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...