./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh --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 76c265ee8cd79c32bac129a25f21c9052690eb74ca3013be3603e97bc6872f20 --- 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 [2022-12-14 09:21:25,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:21:25,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:21:25,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:21:25,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:21:25,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:21:25,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:21:25,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:21:25,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:21:25,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:21:25,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:21:25,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:21:25,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:21:25,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:21:25,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:21:25,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:21:25,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:21:25,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:21:25,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:21:25,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:21:25,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:21:25,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:21:25,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:21:25,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:21:25,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:21:25,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:21:25,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:21:25,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:21:25,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:21:25,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:21:25,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:21:25,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:21:25,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:21:25,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:21:25,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:21:25,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:21:25,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:21:25,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:21:25,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:21:25,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:21:25,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:21:25,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:21:25,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:21:25,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:21:25,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:21:25,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:21:25,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:21:25,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:21:25,097 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:21:25,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:21:25,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:21:25,098 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:21:25,098 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:21:25,098 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:21:25,098 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:21:25,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:21:25,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:21:25,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:21:25,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:21:25,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:21:25,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:21:25,106 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_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76c265ee8cd79c32bac129a25f21c9052690eb74ca3013be3603e97bc6872f20 [2022-12-14 09:21:25,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:21:25,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:21:25,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:21:25,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:21:25,300 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:21:25,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2022-12-14 09:21:27,948 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:21:28,126 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:21:28,127 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2022-12-14 09:21:28,137 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/data/da75b2f32/503c4ab8a4a843e197af1f9674db900c/FLAGf313fb0a3 [2022-12-14 09:21:28,150 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/data/da75b2f32/503c4ab8a4a843e197af1f9674db900c [2022-12-14 09:21:28,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:21:28,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:21:28,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:21:28,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:21:28,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:21:28,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b09c52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28, skipping insertion in model container [2022-12-14 09:21:28,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:21:28,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:21:28,408 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_e73e168b-adde-417a-8f87-9d1e87f4e45b/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c[13732,13745] [2022-12-14 09:21:28,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:21:28,441 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:21:28,490 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_e73e168b-adde-417a-8f87-9d1e87f4e45b/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c[13732,13745] [2022-12-14 09:21:28,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:21:28,516 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:21:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28 WrapperNode [2022-12-14 09:21:28,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:21:28,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:21:28,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:21:28,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:21:28,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,558 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 178 [2022-12-14 09:21:28,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:21:28,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:21:28,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:21:28,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:21:28,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:21:28,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:21:28,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:21:28,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:21:28,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (1/1) ... [2022-12-14 09:21:28,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:21:28,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:21:28,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:21:28,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:21:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:21:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 09:21:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 09:21:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 09:21:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 09:21:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 09:21:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 09:21:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 09:21:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 09:21:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 09:21:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 09:21:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 09:21:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 09:21:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 09:21:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 09:21:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:21:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:21:28,740 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:21:28,742 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:21:28,946 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:21:29,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:21:29,024 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:21:29,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:21:29 BoogieIcfgContainer [2022-12-14 09:21:29,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:21:29,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:21:29,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:21:29,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:21:29,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:21:28" (1/3) ... [2022-12-14 09:21:29,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23832c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:21:29, skipping insertion in model container [2022-12-14 09:21:29,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:21:28" (2/3) ... [2022-12-14 09:21:29,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23832c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:21:29, skipping insertion in model container [2022-12-14 09:21:29,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:21:29" (3/3) ... [2022-12-14 09:21:29,033 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2022-12-14 09:21:29,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:21:29,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:21:29,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:21:29,090 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;@21639566, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:21:29,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:21:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 09:21:29,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:21:29,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:29,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:21:29,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:29,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash 343136830, now seen corresponding path program 1 times [2022-12-14 09:21:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072785147] [2022-12-14 09:21:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:21:29,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:21:29,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072785147] [2022-12-14 09:21:29,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072785147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:21:29,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:21:29,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:21:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945623614] [2022-12-14 09:21:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:21:29,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:21:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:21:29,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:21:29,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:21:29,272 INFO L87 Difference]: Start difference. First operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) 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) [2022-12-14 09:21:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:21:29,338 INFO L93 Difference]: Finished difference Result 130 states and 173 transitions. [2022-12-14 09:21:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:21:29,340 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 [2022-12-14 09:21:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:21:29,349 INFO L225 Difference]: With dead ends: 130 [2022-12-14 09:21:29,349 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 09:21:29,351 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 [2022-12-14 09:21:29,353 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:21:29,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:21:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 09:21:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 09:21:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:21:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-12-14 09:21:29,385 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2022-12-14 09:21:29,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:21:29,385 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-12-14 09:21:29,385 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) [2022-12-14 09:21:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-12-14 09:21:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:21:29,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:29,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:21:29,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:21:29,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1656361979, now seen corresponding path program 1 times [2022-12-14 09:21:29,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:29,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31403521] [2022-12-14 09:21:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:29,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:21:29,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:21:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31403521] [2022-12-14 09:21:29,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31403521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:21:29,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:21:29,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:21:29,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014207116] [2022-12-14 09:21:29,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:21:29,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:21:29,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:21:29,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:21:29,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:21:29,460 INFO L87 Difference]: Start difference. First operand 61 states and 77 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) [2022-12-14 09:21:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:21:29,497 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2022-12-14 09:21:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:21:29,497 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 [2022-12-14 09:21:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:21:29,498 INFO L225 Difference]: With dead ends: 99 [2022-12-14 09:21:29,498 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 09:21:29,499 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 [2022-12-14 09:21:29,500 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 7 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:21:29,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 95 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:21:29,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 09:21:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 09:21:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 09:21:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2022-12-14 09:21:29,506 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 18 [2022-12-14 09:21:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:21:29,507 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2022-12-14 09:21:29,507 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) [2022-12-14 09:21:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-12-14 09:21:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:21:29,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:29,508 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] [2022-12-14 09:21:29,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:21:29,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:29,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1020690027, now seen corresponding path program 1 times [2022-12-14 09:21:29,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:29,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393676985] [2022-12-14 09:21:29,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:29,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:21:29,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:21:29,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393676985] [2022-12-14 09:21:29,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393676985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:21:29,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:21:29,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:21:29,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656587307] [2022-12-14 09:21:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:21:29,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:21:29,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:21:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:21:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:21:29,596 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-12-14 09:21:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:21:29,692 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2022-12-14 09:21:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:21:29,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2022-12-14 09:21:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:21:29,694 INFO L225 Difference]: With dead ends: 104 [2022-12-14 09:21:29,694 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 09:21:29,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:21:29,696 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 62 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:21:29,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 67 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:21:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 09:21:29,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 09:21:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 09:21:29,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-12-14 09:21:29,707 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 20 [2022-12-14 09:21:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:21:29,708 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-12-14 09:21:29,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-12-14 09:21:29,708 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-12-14 09:21:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:21:29,709 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:29,709 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] [2022-12-14 09:21:29,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:21:29,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1263529925, now seen corresponding path program 1 times [2022-12-14 09:21:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:29,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311786970] [2022-12-14 09:21:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:21:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:21:29,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:21:29,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311786970] [2022-12-14 09:21:29,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311786970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:21:29,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:21:29,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:21:29,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641127436] [2022-12-14 09:21:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:21:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:21:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:21:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:21:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:21:29,854 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:21:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:21:29,923 INFO L93 Difference]: Finished difference Result 139 states and 172 transitions. [2022-12-14 09:21:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:21:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-12-14 09:21:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:21:29,925 INFO L225 Difference]: With dead ends: 139 [2022-12-14 09:21:29,925 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 09:21:29,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:21:29,927 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 29 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:21:29,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 209 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:21:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 09:21:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2022-12-14 09:21:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 61 states have internal predecessors, (65), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 09:21:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2022-12-14 09:21:29,938 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 30 [2022-12-14 09:21:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:21:29,939 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2022-12-14 09:21:29,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:21:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2022-12-14 09:21:29,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 09:21:29,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:21:29,940 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] [2022-12-14 09:21:29,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:21:29,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:21:29,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:21:29,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1490645926, now seen corresponding path program 1 times [2022-12-14 09:21:29,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:21:29,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643135444] [2022-12-14 09:21:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:21:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:21:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:21:29,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:21:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:21:29,978 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:21:29,978 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:21:29,979 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:21:29,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:21:29,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 09:21:29,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:21:30,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:21:30 BoogieIcfgContainer [2022-12-14 09:21:30,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:21:30,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:21:30,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:21:30,011 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:21:30,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:21:29" (3/4) ... [2022-12-14 09:21:30,013 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:21:30,064 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:21:30,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:21:30,065 INFO L158 Benchmark]: Toolchain (without parser) took 1910.74ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 67.6MB in the beginning and 77.5MB in the end (delta: -9.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,065 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:21:30,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.96ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 48.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.59ms. Allocated memory is still 123.7MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,066 INFO L158 Benchmark]: Boogie Preprocessor took 24.91ms. Allocated memory is still 123.7MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:21:30,066 INFO L158 Benchmark]: RCFGBuilder took 441.41ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 45.2MB in the beginning and 110.0MB in the end (delta: -64.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,067 INFO L158 Benchmark]: TraceAbstraction took 982.26ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 81.7MB in the end (delta: 28.3MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,067 INFO L158 Benchmark]: Witness Printer took 53.51ms. Allocated memory is still 159.4MB. Free memory was 81.7MB in the beginning and 77.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:21:30,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.96ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 48.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.59ms. Allocated memory is still 123.7MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.91ms. Allocated memory is still 123.7MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.41ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 45.2MB in the beginning and 110.0MB in the end (delta: -64.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 982.26ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 81.7MB in the end (delta: 28.3MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Witness Printer took 53.51ms. Allocated memory is still 159.4MB. Free memory was 81.7MB in the beginning and 77.5MB 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: 590]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L351] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L671] int retValue_acc ; [L672] int tmp ; [L676] FCALL select_helpers() [L677] FCALL select_features() [L678] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); [L678] RET, EXPR valid_product() [L678] tmp = valid_product() [L680] COND TRUE \read(tmp) [L682] FCALL setup() [L683] CALL runTest() [L665] CALL test() [L892] int splverifierCounter ; [L893] int tmp ; [L894] int tmp___0 ; [L895] int tmp___1 ; [L896] int tmp___2 ; [L899] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L901] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L903] COND TRUE splverifierCounter < 4 [L909] tmp = __VERIFIER_nondet_int() [L911] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L913] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L111] COND TRUE waterLevel < 2 [L112] waterLevel = waterLevel + 1 [L913] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L919] tmp___0 = __VERIFIER_nondet_int() [L921] 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] [L929] tmp___2 = __VERIFIER_nondet_int() [L931] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=-2, tmp___2=-3, waterLevel=2] [L944] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L758] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L761] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L735] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] 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] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L827] int retValue_acc ; [L830] retValue_acc = pumpRunning [L831] return (retValue_acc); [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L590] 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 10 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 437 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 217 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 220 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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! [2022-12-14 09:21:30,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73e168b-adde-417a-8f87-9d1e87f4e45b/bin/utaipan-gh47qXpMRh/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