./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8 --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 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:14:19,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:14:19,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:14:19,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:14:19,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:14:19,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:14:19,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:14:19,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:14:19,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:14:19,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:14:19,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:14:19,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:14:19,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:14:19,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:14:19,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:14:19,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:14:19,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:14:19,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:14:19,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:14:19,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:14:19,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:14:19,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:14:19,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:14:19,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:14:19,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:14:19,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:14:19,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:14:19,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:14:19,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:14:19,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:14:19,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:14:19,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:14:19,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:14:19,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:14:19,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:14:19,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:14:19,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:14:19,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:14:19,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:14:19,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:14:19,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:14:19,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:14:19,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:14:19,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:14:19,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:14:19,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:14:19,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:14:19,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:14:19,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:14:19,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:14:19,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:14:19,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:14:19,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:14:19,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:14:19,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:14:19,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:14:19,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:14:19,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:14:19,361 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:14:19,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:14:19,362 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:14:19,362 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a [2022-12-13 22:14:19,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:14:19,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:14:19,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:14:19,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:14:19,540 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:14:19,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-12-13 22:14:22,152 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:14:22,351 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:14:22,352 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-12-13 22:14:22,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/data/0e5271925/06ee077b0ad74bdf81ed32c6700308a2/FLAGb168524e8 [2022-12-13 22:14:22,376 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/data/0e5271925/06ee077b0ad74bdf81ed32c6700308a2 [2022-12-13 22:14:22,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:14:22,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:14:22,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:14:22,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:14:22,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:14:22,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c6eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22, skipping insertion in model container [2022-12-13 22:14:22,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:14:22,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:14:22,581 WARN L237 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_48ee4261-5463-4b02-a7a6-d3270b609232/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c[17788,17801] [2022-12-13 22:14:22,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:14:22,592 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:14:22,634 WARN L237 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_48ee4261-5463-4b02-a7a6-d3270b609232/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c[17788,17801] [2022-12-13 22:14:22,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:14:22,646 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:14:22,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22 WrapperNode [2022-12-13 22:14:22,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:14:22,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:14:22,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:14:22,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:14:22,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,677 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 172 [2022-12-13 22:14:22,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:14:22,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:14:22,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:14:22,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:14:22,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:14:22,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:14:22,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:14:22,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:14:22,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (1/1) ... [2022-12-13 22:14:22,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:14:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:14:22,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:14:22,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 22:14:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 22:14:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 22:14:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 22:14:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 22:14:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:14:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 22:14:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 22:14:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:14:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:14:22,807 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:14:22,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:14:22,984 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:14:22,991 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:14:22,991 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:14:22,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:14:22 BoogieIcfgContainer [2022-12-13 22:14:22,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:14:22,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:14:22,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:14:22,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:14:22,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:14:22" (1/3) ... [2022-12-13 22:14:23,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9aaf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:14:23, skipping insertion in model container [2022-12-13 22:14:23,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:14:22" (2/3) ... [2022-12-13 22:14:23,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9aaf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:14:23, skipping insertion in model container [2022-12-13 22:14:23,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:14:22" (3/3) ... [2022-12-13 22:14:23,002 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2022-12-13 22:14:23,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:14:23,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:14:23,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:14:23,077 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71ada9ca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:14:23,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:14:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 65 states have internal predecessors, (82), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-13 22:14:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 22:14:23,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:23,088 INFO L195 NwaCegarLoop]: 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] [2022-12-13 22:14:23,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:23,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1291726211, now seen corresponding path program 1 times [2022-12-13 22:14:23,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:23,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222126110] [2022-12-13 22:14:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:23,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 22:14:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:14:23,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:14:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222126110] [2022-12-13 22:14:23,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222126110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:14:23,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:14:23,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:14:23,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419185740] [2022-12-13 22:14:23,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:14:23,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:14:23,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:14:23,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:14:23,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:14:23,305 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 65 states have internal predecessors, (82), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2022-12-13 22:14:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:14:23,335 INFO L93 Difference]: Finished difference Result 144 states and 195 transitions. [2022-12-13 22:14:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:14:23,337 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 [2022-12-13 22:14:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:14:23,344 INFO L225 Difference]: With dead ends: 144 [2022-12-13 22:14:23,344 INFO L226 Difference]: Without dead ends: 67 [2022-12-13 22:14:23,347 INFO L412 NwaCegarLoop]: 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 [2022-12-13 22:14:23,350 INFO L413 NwaCegarLoop]: 94 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, 94 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 [2022-12-13 22:14:23,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:14:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-13 22:14:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-13 22:14:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 22:14:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2022-12-13 22:14:23,382 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 25 [2022-12-13 22:14:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:14:23,383 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2022-12-13 22:14:23,383 INFO L496 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) [2022-12-13 22:14:23,383 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2022-12-13 22:14:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 22:14:23,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:23,385 INFO L195 NwaCegarLoop]: 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] [2022-12-13 22:14:23,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:14:23,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2034950582, now seen corresponding path program 1 times [2022-12-13 22:14:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:23,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934366504] [2022-12-13 22:14:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 22:14:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:14:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:14:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934366504] [2022-12-13 22:14:23,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934366504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:14:23,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:14:23,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:14:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602654059] [2022-12-13 22:14:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:14:23,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:14:23,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:14:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:14:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:14:23,469 INFO L87 Difference]: Start difference. First operand 67 states and 85 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) [2022-12-13 22:14:23,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:14:23,482 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2022-12-13 22:14:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:14:23,482 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 [2022-12-13 22:14:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:14:23,483 INFO L225 Difference]: With dead ends: 99 [2022-12-13 22:14:23,483 INFO L226 Difference]: Without dead ends: 58 [2022-12-13 22:14:23,484 INFO L412 NwaCegarLoop]: 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 [2022-12-13 22:14:23,484 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 13 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 127 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 [2022-12-13 22:14:23,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:14:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-13 22:14:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-12-13 22:14:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 22:14:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2022-12-13 22:14:23,491 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 26 [2022-12-13 22:14:23,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:14:23,491 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2022-12-13 22:14:23,491 INFO L496 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) [2022-12-13 22:14:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2022-12-13 22:14:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 22:14:23,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:23,492 INFO L195 NwaCegarLoop]: 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] [2022-12-13 22:14:23,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:14:23,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash -206704986, now seen corresponding path program 1 times [2022-12-13 22:14:23,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:23,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325070392] [2022-12-13 22:14:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 22:14:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:14:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:14:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325070392] [2022-12-13 22:14:23,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325070392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:14:23,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:14:23,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:14:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590235669] [2022-12-13 22:14:23,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:14:23,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:14:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:14:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:14:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:14:23,559 INFO L87 Difference]: Start difference. First operand 58 states and 73 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) [2022-12-13 22:14:23,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:14:23,577 INFO L93 Difference]: Finished difference Result 109 states and 140 transitions. [2022-12-13 22:14:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:14:23,577 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 [2022-12-13 22:14:23,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:14:23,578 INFO L225 Difference]: With dead ends: 109 [2022-12-13 22:14:23,578 INFO L226 Difference]: Without dead ends: 58 [2022-12-13 22:14:23,579 INFO L412 NwaCegarLoop]: 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 [2022-12-13 22:14:23,579 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:14:23,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 71 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:14:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-13 22:14:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-12-13 22:14:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 states have internal predecessors, (60), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 22:14:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2022-12-13 22:14:23,587 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 31 [2022-12-13 22:14:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:14:23,587 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2022-12-13 22:14:23,587 INFO L496 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) [2022-12-13 22:14:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2022-12-13 22:14:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 22:14:23,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:23,588 INFO L195 NwaCegarLoop]: 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] [2022-12-13 22:14:23,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:14:23,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:23,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash 341347230, now seen corresponding path program 1 times [2022-12-13 22:14:23,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:23,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819875190] [2022-12-13 22:14:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:23,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 22:14:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 22:14:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:14:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:14:23,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:14:23,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819875190] [2022-12-13 22:14:23,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819875190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:14:23,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:14:23,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:14:23,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202189079] [2022-12-13 22:14:23,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:14:23,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:14:23,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:14:23,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:14:23,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:14:23,701 INFO L87 Difference]: Start difference. First operand 58 states and 72 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:14:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:14:23,755 INFO L93 Difference]: Finished difference Result 156 states and 202 transitions. [2022-12-13 22:14:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:14:23,756 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-12-13 22:14:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:14:23,757 INFO L225 Difference]: With dead ends: 156 [2022-12-13 22:14:23,757 INFO L226 Difference]: Without dead ends: 105 [2022-12-13 22:14:23,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:14:23,758 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 42 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 281 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 [2022-12-13 22:14:23,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 281 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:14:23,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-12-13 22:14:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2022-12-13 22:14:23,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3) internal successors, (104), 88 states have internal predecessors, (104), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-12-13 22:14:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2022-12-13 22:14:23,771 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 36 [2022-12-13 22:14:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:14:23,771 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2022-12-13 22:14:23,772 INFO L496 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:14:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2022-12-13 22:14:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-13 22:14:23,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:23,773 INFO L195 NwaCegarLoop]: 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, 1, 1] [2022-12-13 22:14:23,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:14:23,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:23,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 533631620, now seen corresponding path program 1 times [2022-12-13 22:14:23,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:23,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189975051] [2022-12-13 22:14:23,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:23,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:14:23,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:14:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:14:23,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:14:23,814 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:14:23,815 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 22:14:23,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:14:23,819 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 22:14:23,822 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:14:23,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:14:23 BoogieIcfgContainer [2022-12-13 22:14:23,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:14:23,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:14:23,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:14:23,848 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:14:23,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:14:22" (3/4) ... [2022-12-13 22:14:23,850 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 22:14:23,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:14:23,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:14:23,890 INFO L158 Benchmark]: Toolchain (without parser) took 1510.86ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 104.6MB in the beginning and 115.4MB in the end (delta: -10.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,890 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:14:23,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.85ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 86.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.00ms. Allocated memory is still 140.5MB. Free memory was 86.3MB in the beginning and 84.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,891 INFO L158 Benchmark]: Boogie Preprocessor took 16.45ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,891 INFO L158 Benchmark]: RCFGBuilder took 298.59ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 140.0MB in the end (delta: -57.3MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,892 INFO L158 Benchmark]: TraceAbstraction took 851.20ms. Allocated memory is still 169.9MB. Free memory was 139.4MB in the beginning and 119.6MB in the end (delta: 19.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,892 INFO L158 Benchmark]: Witness Printer took 42.15ms. Allocated memory is still 169.9MB. Free memory was 119.6MB in the beginning and 115.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:14:23,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.85ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 86.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.00ms. Allocated memory is still 140.5MB. Free memory was 86.3MB in the beginning and 84.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.45ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.59ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 82.7MB in the beginning and 140.0MB in the end (delta: -57.3MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 851.20ms. Allocated memory is still 169.9MB. Free memory was 139.4MB in the beginning and 119.6MB in the end (delta: 19.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 42.15ms. Allocated memory is still 169.9MB. Free memory was 119.6MB in the beginning and 115.4MB in the end (delta: 4.2MB). 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: 920]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L159] int waterLevel = 1; [L160] int methaneLevelCritical = 0; [L417] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L618] int pumpRunning = 0; [L619] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L872] int retValue_acc ; [L875] retValue_acc = 1 [L876] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L791] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L797] tmp = __VERIFIER_nondet_int() [L799] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L801] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L177] COND TRUE waterLevel < 2 [L178] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L807] tmp___0 = __VERIFIER_nondet_int() [L809] 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] [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L821] CALL startSystem() [L774] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L821] RET startSystem() [L834] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L626] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L633] COND TRUE \read(systemActive) [L635] CALL processEnvironment() [L655] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L673] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] RET processEnvironment() [L641] CALL __utac_acc__Specification3_spec__1() [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L198] int retValue_acc ; [L201] retValue_acc = methaneLevelCritical [L202] 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=1, waterLevel=2] [L889] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] tmp = isMethaneLevelCritical() [L891] COND FALSE !(\read(tmp)) [L895] CALL, EXPR getWaterLevel() [L230] int retValue_acc ; [L233] retValue_acc = waterLevel [L234] 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=1, waterLevel=2] [L895] RET, EXPR getWaterLevel() [L895] tmp___0 = getWaterLevel() [L897] COND TRUE tmp___0 == 2 [L899] CALL, EXPR isPumpRunning() [L707] int retValue_acc ; [L710] retValue_acc = pumpRunning [L711] 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=1, waterLevel=2] [L899] RET, EXPR isPumpRunning() [L899] tmp___1 = isPumpRunning() [L901] COND FALSE !(\read(tmp___1)) [L905] CALL __automaton_fail() [L920] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 573 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 261 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 312 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 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! [2022-12-13 22:14:23,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ee4261-5463-4b02-a7a6-d3270b609232/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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