./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- 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-6b4ec56 [2022-11-20 18:55:19,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:55:19,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:55:19,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:55:19,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:55:19,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:55:19,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:55:19,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:55:19,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:55:19,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:55:19,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:55:19,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:55:19,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:55:19,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:55:19,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:55:19,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:55:19,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:55:19,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:55:19,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:55:19,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:55:19,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:55:19,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:55:19,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:55:19,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:55:19,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:55:19,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:55:19,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:55:19,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:55:19,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:55:19,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:55:19,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:55:19,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:55:19,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:55:19,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:55:19,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:55:19,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:55:19,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:55:19,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:55:19,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:55:19,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:55:19,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:55:19,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 18:55:19,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:55:19,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:55:19,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 18:55:19,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 18:55:19,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:55:19,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 18:55:19,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 18:55:19,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 18:55:19,417 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 18:55:19,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 18:55:19,417 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 18:55:19,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 18:55:19,418 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 18:55:19,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 18:55:19,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 18:55:19,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 18:55:19,419 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 18:55:19,419 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 18:55:19,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:55:19,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:55:19,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:55:19,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:55:19,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:55:19,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:55:19,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:55:19,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:55:19,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:55:19,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:55:19,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:55:19,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:55:19,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:55:19,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 18:55:19,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:55:19,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:55:19,423 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 18:55:19,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:55:19,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:55:19,423 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 18:55:19,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:55:19,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:55:19,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 18:55:19,424 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_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2022-11-20 18:55:19,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:55:19,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:55:19,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:55:19,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:55:19,703 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:55:19,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-20 18:55:22,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:55:23,173 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:55:23,176 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-11-20 18:55:23,191 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/data/299f26193/b44f96c59a994365b3bcdaa5e418ed0c/FLAG2eccf071e [2022-11-20 18:55:23,213 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/data/299f26193/b44f96c59a994365b3bcdaa5e418ed0c [2022-11-20 18:55:23,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:55:23,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:55:23,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:55:23,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:55:23,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:55:23,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be02d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23, skipping insertion in model container [2022-11-20 18:55:23,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:55:23,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:55:23,574 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_123d3ba1-4499-400f-ad51-2a0fbb36129f/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-20 18:55:23,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:55:23,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:55:23,739 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_123d3ba1-4499-400f-ad51-2a0fbb36129f/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-11-20 18:55:23,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:55:23,788 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:55:23,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23 WrapperNode [2022-11-20 18:55:23,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:55:23,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:55:23,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:55:23,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:55:23,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,837 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 200 [2022-11-20 18:55:23,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:55:23,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:55:23,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:55:23,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:55:23,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:55:23,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:55:23,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:55:23,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:55:23,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (1/1) ... [2022-11-20 18:55:23,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:55:23,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 18:55:23,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 18:55:23,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 18:55:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:55:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 18:55:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 18:55:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 18:55:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 18:55:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 18:55:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 18:55:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 18:55:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 18:55:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 18:55:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 18:55:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:55:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 18:55:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 18:55:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:55:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:55:24,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:55:24,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:55:24,464 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:55:24,634 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:55:24,635 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:55:24,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:24 BoogieIcfgContainer [2022-11-20 18:55:24,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:55:24,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 18:55:24,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 18:55:24,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 18:55:24,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:55:23" (1/3) ... [2022-11-20 18:55:24,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2117f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:55:24, skipping insertion in model container [2022-11-20 18:55:24,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:23" (2/3) ... [2022-11-20 18:55:24,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2117f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:55:24, skipping insertion in model container [2022-11-20 18:55:24,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:24" (3/3) ... [2022-11-20 18:55:24,665 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2022-11-20 18:55:24,687 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 18:55:24,687 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 18:55:24,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 18:55:24,746 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=FINITE_AUTOMATA, 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;@46d7cf70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 18:55:24,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 18:55:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 18:55:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 18:55:24,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:55:24,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:55:24,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 18:55:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:55:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash -241988560, now seen corresponding path program 1 times [2022-11-20 18:55:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:55:24,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271331456] [2022-11-20 18:55:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:55:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:55:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:55:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:55:24,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:55:24,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271331456] [2022-11-20 18:55:24,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271331456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:55:24,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:55:24,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 18:55:24,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388504659] [2022-11-20 18:55:24,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:55:24,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 18:55:24,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:55:25,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 18:55:25,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:55:25,036 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-20 18:55:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:55:25,148 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-20 18:55:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 18:55:25,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2022-11-20 18:55:25,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:55:25,162 INFO L225 Difference]: With dead ends: 100 [2022-11-20 18:55:25,162 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 18:55:25,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 18:55:25,170 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:55:25,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:55:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 18:55:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 18:55:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 18:55:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-20 18:55:25,216 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 17 [2022-11-20 18:55:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:55:25,217 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-20 18:55:25,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-20 18:55:25,217 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-20 18:55:25,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 18:55:25,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:55:25,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:55:25,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 18:55:25,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 18:55:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:55:25,222 INFO L85 PathProgramCache]: Analyzing trace with hash -28258463, now seen corresponding path program 1 times [2022-11-20 18:55:25,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:55:25,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330992361] [2022-11-20 18:55:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:55:25,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:55:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:55:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:55:25,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:55:25,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330992361] [2022-11-20 18:55:25,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330992361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:55:25,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:55:25,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 18:55:25,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484328228] [2022-11-20 18:55:25,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:55:25,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 18:55:25,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:55:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 18:55:25,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 18:55:25,366 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 18:55:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:55:25,430 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-20 18:55:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 18:55:25,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2022-11-20 18:55:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:55:25,434 INFO L225 Difference]: With dead ends: 69 [2022-11-20 18:55:25,435 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 18:55:25,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 18:55:25,438 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 18:55:25,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 18:55:25,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 18:55:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-20 18:55:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 18:55:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-20 18:55:25,455 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 18 [2022-11-20 18:55:25,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:55:25,456 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-20 18:55:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-20 18:55:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-20 18:55:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 18:55:25,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:55:25,459 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] [2022-11-20 18:55:25,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 18:55:25,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 18:55:25,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:55:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1104801318, now seen corresponding path program 1 times [2022-11-20 18:55:25,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:55:25,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115887073] [2022-11-20 18:55:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:55:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:55:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:55:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:55:26,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:55:26,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115887073] [2022-11-20 18:55:26,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115887073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:55:26,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:55:26,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 18:55:26,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697228596] [2022-11-20 18:55:26,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:55:26,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 18:55:26,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:55:26,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 18:55:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 18:55:26,139 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-11-20 18:55:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:55:26,513 INFO L93 Difference]: Finished difference Result 169 states and 216 transitions. [2022-11-20 18:55:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 18:55:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 20 [2022-11-20 18:55:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:55:26,516 INFO L225 Difference]: With dead ends: 169 [2022-11-20 18:55:26,516 INFO L226 Difference]: Without dead ends: 133 [2022-11-20 18:55:26,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 18:55:26,518 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 185 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 18:55:26,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 180 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 18:55:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-20 18:55:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 94. [2022-11-20 18:55:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 72 states have internal predecessors, (81), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (19), 14 states have call predecessors, (19), 17 states have call successors, (19) [2022-11-20 18:55:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2022-11-20 18:55:26,542 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 20 [2022-11-20 18:55:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:55:26,542 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2022-11-20 18:55:26,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-11-20 18:55:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-11-20 18:55:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 18:55:26,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:55:26,544 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] [2022-11-20 18:55:26,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 18:55:26,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 18:55:26,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:55:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash -266505946, now seen corresponding path program 1 times [2022-11-20 18:55:26,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:55:26,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789602608] [2022-11-20 18:55:26,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:55:26,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:55:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:55:26,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:55:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:55:26,601 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 18:55:26,601 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 18:55:26,602 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 18:55:26,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 18:55:26,608 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 18:55:26,612 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 18:55:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:55:26 BoogieIcfgContainer [2022-11-20 18:55:26,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 18:55:26,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:55:26,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:55:26,655 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:55:26,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:24" (3/4) ... [2022-11-20 18:55:26,657 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:55:26,756 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 18:55:26,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:55:26,757 INFO L158 Benchmark]: Toolchain (without parser) took 3535.53ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 96.7MB in the beginning and 86.9MB in the end (delta: 9.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,757 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory was 54.4MB in the beginning and 54.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:55:26,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.92ms. Allocated memory is still 127.9MB. Free memory was 96.5MB in the beginning and 77.9MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.95ms. Allocated memory is still 127.9MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,758 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 127.9MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,758 INFO L158 Benchmark]: RCFGBuilder took 769.93ms. Allocated memory is still 127.9MB. Free memory was 74.0MB in the beginning and 97.6MB in the end (delta: -23.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,758 INFO L158 Benchmark]: TraceAbstraction took 1994.26ms. Allocated memory is still 165.7MB. Free memory was 137.1MB in the beginning and 90.1MB in the end (delta: 47.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,759 INFO L158 Benchmark]: Witness Printer took 101.62ms. Allocated memory is still 165.7MB. Free memory was 90.1MB in the beginning and 86.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:55:26,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory was 54.4MB in the beginning and 54.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.92ms. Allocated memory is still 127.9MB. Free memory was 96.5MB in the beginning and 77.9MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.95ms. Allocated memory is still 127.9MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 127.9MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 769.93ms. Allocated memory is still 127.9MB. Free memory was 74.0MB in the beginning and 97.6MB in the end (delta: -23.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1994.26ms. Allocated memory is still 165.7MB. Free memory was 137.1MB in the beginning and 90.1MB in the end (delta: 47.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 101.62ms. Allocated memory is still 165.7MB. Free memory was 90.1MB in the beginning and 86.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 328]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L906] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L918] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L213] COND TRUE waterLevel < 2 [L214] waterLevel = waterLevel + 1 [L918] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L924] tmp___0 = __VERIFIER_nondet_int() [L926] 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] [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L946] CALL stopSystem() [L876] COND FALSE !(\read(pumpRunning)) [L883] systemActive = 0 [L946] RET stopSystem() [L953] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L717] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] 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] [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L328] 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 287 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 134 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-20 18:55:26,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123d3ba1-4499-400f-ad51-2a0fbb36129f/bin/utaipan-6cKwYrpEi9/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