./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL --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 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:42:14,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:42:14,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:42:14,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:42:14,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:42:14,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:42:14,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:42:14,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:42:14,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:42:14,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:42:14,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:42:14,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:42:14,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:42:14,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:42:14,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:42:14,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:42:14,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:42:14,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:42:14,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:42:14,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:42:14,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:42:14,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:42:14,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:42:14,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:42:14,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:42:14,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:42:14,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:42:14,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:42:14,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:42:14,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:42:14,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:42:14,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:42:14,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:42:14,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:42:14,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:42:14,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:42:14,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:42:14,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:42:14,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:42:14,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:42:14,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:42:14,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:42:14,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:42:14,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:42:14,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:42:14,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:42:14,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:42:14,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:42:14,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:42:14,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:42:14,435 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:42:14,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:42:14,436 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:42:14,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:42:14,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:42:14,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:42:14,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:42:14,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:42:14,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:42:14,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:42:14,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:42:14,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:42:14,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:42:14,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:42:14,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:42:14,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:42:14,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:42:14,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:42:14,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:42:14,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:42:14,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:42:14,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:42:14,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:42:14,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:42:14,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:42:14,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:42:14,441 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_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b [2021-11-19 04:42:14,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:42:14,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:42:14,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:42:14,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:42:14,750 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:42:14,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-11-19 04:42:14,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/data/cb6844f9f/396002d9a4904587812cf4f04e659790/FLAG7f4f26ca9 [2021-11-19 04:42:15,383 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:42:15,384 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-11-19 04:42:15,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/data/cb6844f9f/396002d9a4904587812cf4f04e659790/FLAG7f4f26ca9 [2021-11-19 04:42:15,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/data/cb6844f9f/396002d9a4904587812cf4f04e659790 [2021-11-19 04:42:15,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:42:15,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:42:15,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:42:15,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:42:15,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:42:15,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:42:15" (1/1) ... [2021-11-19 04:42:15,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae4d4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:15, skipping insertion in model container [2021-11-19 04:42:15,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:42:15" (1/1) ... [2021-11-19 04:42:15,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:42:15,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:42:16,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-11-19 04:42:16,073 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:42:16,084 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:42:16,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-11-19 04:42:16,198 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:42:16,218 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:42:16,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16 WrapperNode [2021-11-19 04:42:16,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:42:16,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:42:16,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:42:16,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:42:16,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,298 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 231 [2021-11-19 04:42:16,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:42:16,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:42:16,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:42:16,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:42:16,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:42:16,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:42:16,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:42:16,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:42:16,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (1/1) ... [2021-11-19 04:42:16,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:42:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:16,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:16,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:42:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:42:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-19 04:42:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-19 04:42:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-19 04:42:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-19 04:42:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-19 04:42:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-19 04:42:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-19 04:42:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-19 04:42:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-19 04:42:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-19 04:42:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-19 04:42:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-19 04:42:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:42:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-19 04:42:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-19 04:42:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:42:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:42:16,526 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:42:16,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:42:16,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:42:16,852 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:42:16,852 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:42:16,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:42:16 BoogieIcfgContainer [2021-11-19 04:42:16,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:42:16,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:42:16,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:42:16,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:42:16,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:42:15" (1/3) ... [2021-11-19 04:42:16,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d601ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:42:16, skipping insertion in model container [2021-11-19 04:42:16,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:42:16" (2/3) ... [2021-11-19 04:42:16,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d601ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:42:16, skipping insertion in model container [2021-11-19 04:42:16,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:42:16" (3/3) ... [2021-11-19 04:42:16,865 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-11-19 04:42:16,871 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:42:16,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:42:16,929 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:42:16,938 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:42:16,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:42:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-19 04:42:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 04:42:16,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:42:16,978 INFO L514 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] [2021-11-19 04:42:16,983 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:42:16,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1306475585, now seen corresponding path program 1 times [2021-11-19 04:42:17,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:17,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222458721] [2021-11-19 04:42:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:17,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:42:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:17,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:17,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222458721] [2021-11-19 04:42:17,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222458721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:17,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:42:17,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:42:17,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454519697] [2021-11-19 04:42:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:17,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:42:17,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:42:17,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:42:17,340 INFO L87 Difference]: Start difference. First operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:17,406 INFO L93 Difference]: Finished difference Result 158 states and 213 transitions. [2021-11-19 04:42:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:42:17,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-19 04:42:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:42:17,423 INFO L225 Difference]: With dead ends: 158 [2021-11-19 04:42:17,423 INFO L226 Difference]: Without dead ends: 74 [2021-11-19 04:42:17,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:42:17,434 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:42:17,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:42:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-19 04:42:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-19 04:42:17,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 62 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-19 04:42:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2021-11-19 04:42:17,480 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 25 [2021-11-19 04:42:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:42:17,481 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2021-11-19 04:42:17,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2021-11-19 04:42:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:42:17,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:42:17,484 INFO L514 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] [2021-11-19 04:42:17,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:42:17,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:42:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1441839023, now seen corresponding path program 1 times [2021-11-19 04:42:17,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:17,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881801104] [2021-11-19 04:42:17,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:17,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-19 04:42:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:17,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:17,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881801104] [2021-11-19 04:42:17,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881801104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:17,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:42:17,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:42:17,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433379592] [2021-11-19 04:42:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:17,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:42:17,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:17,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:42:17,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:42:17,678 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:17,708 INFO L93 Difference]: Finished difference Result 109 states and 137 transitions. [2021-11-19 04:42:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:42:17,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-19 04:42:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:42:17,711 INFO L225 Difference]: With dead ends: 109 [2021-11-19 04:42:17,711 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 04:42:17,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:42:17,714 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 17 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:42:17,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:42:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 04:42:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 04:42:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.32) internal successors, (66), 56 states have internal predecessors, (66), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:42:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2021-11-19 04:42:17,725 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 26 [2021-11-19 04:42:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:42:17,725 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2021-11-19 04:42:17,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2021-11-19 04:42:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 04:42:17,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:42:17,727 INFO L514 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, 1, 1, 1] [2021-11-19 04:42:17,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:42:17,728 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:42:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2084051564, now seen corresponding path program 1 times [2021-11-19 04:42:17,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:17,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434537601] [2021-11-19 04:42:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:17,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:42:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:17,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:17,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434537601] [2021-11-19 04:42:17,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434537601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:17,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:42:17,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:42:17,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714101044] [2021-11-19 04:42:17,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:17,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:42:17,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:17,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:42:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:42:17,840 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:17,893 INFO L93 Difference]: Finished difference Result 179 states and 231 transitions. [2021-11-19 04:42:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:42:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-19 04:42:17,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:42:17,896 INFO L225 Difference]: With dead ends: 179 [2021-11-19 04:42:17,896 INFO L226 Difference]: Without dead ends: 121 [2021-11-19 04:42:17,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:42:17,898 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:42:17,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 175 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:42:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-19 04:42:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2021-11-19 04:42:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.348314606741573) internal successors, (120), 100 states have internal predecessors, (120), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-19 04:42:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 152 transitions. [2021-11-19 04:42:17,923 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 152 transitions. Word has length 31 [2021-11-19 04:42:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:42:17,924 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 152 transitions. [2021-11-19 04:42:17,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 152 transitions. [2021-11-19 04:42:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 04:42:17,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:42:17,926 INFO L514 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, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:17,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:42:17,927 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:42:17,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1036222709, now seen corresponding path program 1 times [2021-11-19 04:42:17,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:17,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762460022] [2021-11-19 04:42:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:17,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-19 04:42:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:18,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:18,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762460022] [2021-11-19 04:42:18,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762460022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:18,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:42:18,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:42:18,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33449708] [2021-11-19 04:42:18,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:18,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:42:18,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:18,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:42:18,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:42:18,077 INFO L87 Difference]: Start difference. First operand 118 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:18,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:18,187 INFO L93 Difference]: Finished difference Result 334 states and 443 transitions. [2021-11-19 04:42:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:42:18,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-11-19 04:42:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:42:18,192 INFO L225 Difference]: With dead ends: 334 [2021-11-19 04:42:18,192 INFO L226 Difference]: Without dead ends: 223 [2021-11-19 04:42:18,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:42:18,196 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 52 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:42:18,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 327 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:42:18,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-19 04:42:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2021-11-19 04:42:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 181 states have internal predecessors, (216), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2021-11-19 04:42:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 282 transitions. [2021-11-19 04:42:18,234 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 282 transitions. Word has length 34 [2021-11-19 04:42:18,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:42:18,235 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 282 transitions. [2021-11-19 04:42:18,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:42:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 282 transitions. [2021-11-19 04:42:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-19 04:42:18,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:42:18,239 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:18,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 04:42:18,240 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:42:18,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:18,240 INFO L85 PathProgramCache]: Analyzing trace with hash 957099611, now seen corresponding path program 1 times [2021-11-19 04:42:18,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:18,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348804914] [2021-11-19 04:42:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:18,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:18,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:18,329 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:18,330 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:42:18,331 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:42:18,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:42:18,336 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 04:42:18,340 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:42:18,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:42:18 BoogieIcfgContainer [2021-11-19 04:42:18,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:42:18,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:42:18,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:42:18,405 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:42:18,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:42:16" (3/4) ... [2021-11-19 04:42:18,408 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 04:42:18,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:42:18,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:42:18,529 INFO L158 Benchmark]: Toolchain (without parser) took 2842.32ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 46.4MB in the beginning and 75.6MB in the end (delta: -29.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:42:18,534 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:42:18,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 77.3MB in the end (delta: -31.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.86ms. Allocated memory is still 109.1MB. Free memory was 77.3MB in the beginning and 74.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,536 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,538 INFO L158 Benchmark]: RCFGBuilder took 507.45ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 57.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,539 INFO L158 Benchmark]: TraceAbstraction took 1546.52ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 80.5MB in the end (delta: -23.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,539 INFO L158 Benchmark]: Witness Printer took 123.91ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 75.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:42:18,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 86.0MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 46.2MB in the beginning and 77.3MB in the end (delta: -31.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.86ms. Allocated memory is still 109.1MB. Free memory was 77.3MB in the beginning and 74.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.42ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.45ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 57.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1546.52ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 80.5MB in the end (delta: -23.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 123.91ms. Allocated memory is still 109.1MB. Free memory was 80.5MB in the beginning and 75.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 937]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] int retValue_acc ; [L533] int tmp ; [L537] FCALL select_helpers() [L538] FCALL select_features() [L539] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L539] RET, EXPR valid_product() [L539] tmp = valid_product() [L541] COND TRUE \read(tmp) [L543] FCALL setup() [L544] CALL runTest() [L526] CALL test() [L776] int splverifierCounter ; [L777] int tmp ; [L778] int tmp___0 ; [L779] int tmp___1 ; [L780] int tmp___2 ; [L783] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L785] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L787] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L793] tmp = __VERIFIER_nondet_int() [L795] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L797] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE waterLevel < 2 [L863] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L803] tmp___0 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L813] tmp___2 = __VERIFIER_nondet_int() [L815] COND FALSE !(\read(tmp___2)) [L821] tmp___1 = __VERIFIER_nondet_int() [L823] COND TRUE \read(tmp___1) [L825] CALL stopSystem() [L755] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L825] RET stopSystem() [L832] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L607] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L622] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L566] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L937] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 745 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 369 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 376 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-19 04:42:18,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec185c5-8b1e-44a1-b888-0144786f988d/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE