./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff --- 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-38b53e6 [2022-11-25 15:26:03,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:26:03,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:26:03,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:26:03,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:26:03,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:26:03,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:26:03,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:26:03,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:26:03,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:26:03,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:26:03,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:26:03,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:26:03,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:26:03,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:26:03,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:26:03,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:26:03,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:26:04,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:26:04,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:26:04,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:26:04,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:26:04,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:26:04,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:26:04,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:26:04,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:26:04,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:26:04,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:26:04,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:26:04,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:26:04,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:26:04,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:26:04,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:26:04,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:26:04,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:26:04,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:26:04,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:26:04,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:26:04,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:26:04,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:26:04,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:26:04,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:26:04,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:26:04,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:26:04,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:26:04,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:26:04,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:26:04,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:26:04,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:26:04,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:26:04,095 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:26:04,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:26:04,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:26:04,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:26:04,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:26:04,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:26:04,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:26:04,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:26:04,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:26:04,099 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:26:04,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:26:04,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:26:04,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:26:04,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:26:04,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:26:04,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:26:04,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:04,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:26:04,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:26:04,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:26:04,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:26:04,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:26:04,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:26:04,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:26:04,103 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:26:04,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:26:04,104 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff [2022-11-25 15:26:04,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:26:04,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:26:04,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:26:04,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:26:04,514 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:26:04,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-11-25 15:26:07,737 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:26:08,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:26:08,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2022-11-25 15:26:08,053 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/data/f79027c05/e31583c0d85d43218026a7a017d7951d/FLAG99bad0601 [2022-11-25 15:26:08,075 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/data/f79027c05/e31583c0d85d43218026a7a017d7951d [2022-11-25 15:26:08,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:26:08,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:26:08,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:08,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:26:08,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:26:08,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f04054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08, skipping insertion in model container [2022-11-25 15:26:08,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:26:08,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:26:08,427 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_021a0053-b68e-421b-b534-2a74c795aefc/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2022-11-25 15:26:08,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:08,463 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:26:08,578 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_021a0053-b68e-421b-b534-2a74c795aefc/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2022-11-25 15:26:08,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:08,598 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:26:08,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08 WrapperNode [2022-11-25 15:26:08,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:08,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:08,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:26:08,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:26:08,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,645 INFO L138 Inliner]: procedures = 51, calls = 91, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 140 [2022-11-25 15:26:08,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:08,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:26:08,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:26:08,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:26:08,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,700 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:26:08,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:26:08,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:26:08,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:26:08,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (1/1) ... [2022-11-25 15:26:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:08,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:08,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:26:08,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:26:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:26:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 15:26:08,802 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 15:26:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 15:26:08,802 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 15:26:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 15:26:08,802 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 15:26:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:26:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 15:26:08,803 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 15:26:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:26:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:26:08,886 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:26:08,887 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:26:09,157 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:26:09,172 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:26:09,186 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:26:09,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:09 BoogieIcfgContainer [2022-11-25 15:26:09,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:26:09,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:26:09,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:26:09,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:26:09,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:26:08" (1/3) ... [2022-11-25 15:26:09,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734b95bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:09, skipping insertion in model container [2022-11-25 15:26:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:08" (2/3) ... [2022-11-25 15:26:09,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734b95bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:09, skipping insertion in model container [2022-11-25 15:26:09,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:09" (3/3) ... [2022-11-25 15:26:09,207 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2022-11-25 15:26:09,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:26:09,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:26:09,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:26:09,354 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@324d588f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:26:09,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:26:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 15:26:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 15:26:09,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:09,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:09,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash 104536911, now seen corresponding path program 1 times [2022-11-25 15:26:09,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:09,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861838380] [2022-11-25 15:26:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:09,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:09,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861838380] [2022-11-25 15:26:09,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861838380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:09,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:09,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:09,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525037174] [2022-11-25 15:26:09,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:09,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:26:09,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:09,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:26:09,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:26:09,652 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:09,697 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2022-11-25 15:26:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:26:09,701 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 15:26:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:09,715 INFO L225 Difference]: With dead ends: 118 [2022-11-25 15:26:09,715 INFO L226 Difference]: Without dead ends: 54 [2022-11-25 15:26:09,723 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 [2022-11-25 15:26:09,732 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:09,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:09,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-25 15:26:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-25 15:26:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 15:26:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-11-25 15:26:09,799 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2022-11-25 15:26:09,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:09,800 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-11-25 15:26:09,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-11-25 15:26:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 15:26:09,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:09,805 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] [2022-11-25 15:26:09,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:26:09,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2010419421, now seen corresponding path program 1 times [2022-11-25 15:26:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327599947] [2022-11-25 15:26:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:09,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:10,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:10,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327599947] [2022-11-25 15:26:10,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327599947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:10,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:10,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:26:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575711558] [2022-11-25 15:26:10,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:10,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:10,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:10,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:10,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:10,036 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:10,070 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-11-25 15:26:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 15:26:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:10,074 INFO L225 Difference]: With dead ends: 69 [2022-11-25 15:26:10,074 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 15:26:10,079 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 [2022-11-25 15:26:10,083 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:10,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 15:26:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-25 15:26:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:26:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-25 15:26:10,102 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2022-11-25 15:26:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:10,102 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-25 15:26:10,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,104 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-25 15:26:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 15:26:10,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:10,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:10,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:26:10,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1391456279, now seen corresponding path program 1 times [2022-11-25 15:26:10,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:10,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430934925] [2022-11-25 15:26:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:10,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430934925] [2022-11-25 15:26:10,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430934925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:10,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:10,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:26:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898026237] [2022-11-25 15:26:10,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:10,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:26:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:26:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:10,305 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:10,420 INFO L93 Difference]: Finished difference Result 118 states and 153 transitions. [2022-11-25 15:26:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:26:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 15:26:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:10,424 INFO L225 Difference]: With dead ends: 118 [2022-11-25 15:26:10,424 INFO L226 Difference]: Without dead ends: 80 [2022-11-25 15:26:10,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:26:10,426 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:10,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-25 15:26:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-11-25 15:26:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 15:26:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2022-11-25 15:26:10,444 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 25 [2022-11-25 15:26:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:10,444 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2022-11-25 15:26:10,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2022-11-25 15:26:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 15:26:10,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:10,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:10,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:26:10,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:10,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2118082784, now seen corresponding path program 1 times [2022-11-25 15:26:10,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:10,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037337334] [2022-11-25 15:26:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:10,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:10,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037337334] [2022-11-25 15:26:10,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037337334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:10,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:10,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:26:10,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012588130] [2022-11-25 15:26:10,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:10,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:26:10,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:26:10,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:10,597 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:10,664 INFO L93 Difference]: Finished difference Result 199 states and 274 transitions. [2022-11-25 15:26:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:26:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-25 15:26:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:10,667 INFO L225 Difference]: With dead ends: 199 [2022-11-25 15:26:10,667 INFO L226 Difference]: Without dead ends: 131 [2022-11-25 15:26:10,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:26:10,669 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:10,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 208 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:10,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-25 15:26:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-25 15:26:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3333333333333333) internal successors, (144), 115 states have internal predecessors, (144), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2022-11-25 15:26:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2022-11-25 15:26:10,705 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 173 transitions. Word has length 26 [2022-11-25 15:26:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:10,705 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 173 transitions. [2022-11-25 15:26:10,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 173 transitions. [2022-11-25 15:26:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 15:26:10,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:10,720 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] [2022-11-25 15:26:10,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:26:10,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:10,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1144185819, now seen corresponding path program 1 times [2022-11-25 15:26:10,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:10,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100195176] [2022-11-25 15:26:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:10,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:10,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:10,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100195176] [2022-11-25 15:26:10,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100195176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:10,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:10,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460175513] [2022-11-25 15:26:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:10,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:10,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:10,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:10,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:10,793 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:10,851 INFO L93 Difference]: Finished difference Result 247 states and 332 transitions. [2022-11-25 15:26:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:10,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 15:26:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:10,855 INFO L225 Difference]: With dead ends: 247 [2022-11-25 15:26:10,859 INFO L226 Difference]: Without dead ends: 123 [2022-11-25 15:26:10,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:10,865 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:10,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-25 15:26:10,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-11-25 15:26:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 107 states have internal predecessors, (128), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-25 15:26:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 154 transitions. [2022-11-25 15:26:10,906 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 154 transitions. Word has length 28 [2022-11-25 15:26:10,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:10,907 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 154 transitions. [2022-11-25 15:26:10,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 154 transitions. [2022-11-25 15:26:10,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 15:26:10,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:10,909 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] [2022-11-25 15:26:10,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:26:10,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:26:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:10,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1922048634, now seen corresponding path program 1 times [2022-11-25 15:26:10,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:10,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30938308] [2022-11-25 15:26:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:10,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 15:26:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:11,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:11,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30938308] [2022-11-25 15:26:11,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30938308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:11,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:11,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:26:11,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487102928] [2022-11-25 15:26:11,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:11,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:26:11,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:26:11,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:26:11,009 INFO L87 Difference]: Start difference. First operand 123 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:26:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:11,098 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2022-11-25 15:26:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:26:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-25 15:26:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:11,100 INFO L225 Difference]: With dead ends: 133 [2022-11-25 15:26:11,100 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:26:11,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:26:11,102 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 47 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:11,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 144 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:11,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:26:11,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:26:11,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:26:11,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-25 15:26:11,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:11,105 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:26:11,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:26:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:26:11,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:26:11,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 15:26:11,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:26:11,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:26:11,666 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 219 230) no Hoare annotation was computed. [2022-11-25 15:26:11,666 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 219 230) the Hoare annotation is: true [2022-11-25 15:26:11,667 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 219 230) no Hoare annotation was computed. [2022-11-25 15:26:11,667 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2022-11-25 15:26:11,667 INFO L899 garLoopResultBuilder]: For program point L861(lines 861 874) no Hoare annotation was computed. [2022-11-25 15:26:11,667 INFO L895 garLoopResultBuilder]: At program point L861-1(lines 853 877) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~5#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-25 15:26:11,668 INFO L895 garLoopResultBuilder]: At program point L345(lines 340 348) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-25 15:26:11,668 INFO L895 garLoopResultBuilder]: At program point L310(lines 306 312) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0))) (not (= ~pumpRunning~0 0))) [2022-11-25 15:26:11,668 INFO L895 garLoopResultBuilder]: At program point L849(lines 844 851) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-25 15:26:11,668 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2022-11-25 15:26:11,668 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 282 305) no Hoare annotation was computed. [2022-11-25 15:26:11,669 INFO L895 garLoopResultBuilder]: At program point L199-2(lines 195 206) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2022-11-25 15:26:11,669 INFO L899 garLoopResultBuilder]: For program point L286-1(lines 285 304) no Hoare annotation was computed. [2022-11-25 15:26:11,669 INFO L899 garLoopResultBuilder]: For program point L848(line 848) no Hoare annotation was computed. [2022-11-25 15:26:11,669 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 282 305) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-25 15:26:11,669 INFO L895 garLoopResultBuilder]: At program point L268(lines 263 271) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-11-25 15:26:11,670 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 282 305) no Hoare annotation was computed. [2022-11-25 15:26:11,670 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 848) no Hoare annotation was computed. [2022-11-25 15:26:11,670 INFO L899 garLoopResultBuilder]: For program point L293-1(lines 293 299) no Hoare annotation was computed. [2022-11-25 15:26:11,670 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-25 15:26:11,671 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-25 15:26:11,671 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-25 15:26:11,671 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-25 15:26:11,671 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-25 15:26:11,671 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-25 15:26:11,671 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-25 15:26:11,672 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-25 15:26:11,672 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-25 15:26:11,672 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-25 15:26:11,672 INFO L895 garLoopResultBuilder]: At program point L184(lines 179 187) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-25 15:26:11,672 INFO L895 garLoopResultBuilder]: At program point L469(lines 418 470) the Hoare annotation is: false [2022-11-25 15:26:11,673 INFO L895 garLoopResultBuilder]: At program point L176(lines 172 178) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-25 15:26:11,673 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 463) no Hoare annotation was computed. [2022-11-25 15:26:11,673 INFO L895 garLoopResultBuilder]: At program point L457-2(lines 449 464) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-25 15:26:11,673 INFO L899 garLoopResultBuilder]: For program point L420(lines 419 468) no Hoare annotation was computed. [2022-11-25 15:26:11,673 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 464) no Hoare annotation was computed. [2022-11-25 15:26:11,673 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:26:11,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:26:11,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:26:11,674 INFO L895 garLoopResultBuilder]: At program point L441(line 441) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-25 15:26:11,674 INFO L895 garLoopResultBuilder]: At program point L466(lines 419 468) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-25 15:26:11,674 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 435) no Hoare annotation was computed. [2022-11-25 15:26:11,675 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-11-25 15:26:11,675 INFO L899 garLoopResultBuilder]: For program point L429-1(lines 429 435) no Hoare annotation was computed. [2022-11-25 15:26:11,675 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-11-25 15:26:11,675 INFO L895 garLoopResultBuilder]: At program point L169(lines 165 171) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-25 15:26:11,675 INFO L895 garLoopResultBuilder]: At program point L326(lines 321 328) the Hoare annotation is: false [2022-11-25 15:26:11,675 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2022-11-25 15:26:11,676 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:26:11,676 INFO L902 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2022-11-25 15:26:11,676 INFO L895 garLoopResultBuilder]: At program point L405(lines 400 407) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-25 15:26:11,676 INFO L902 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2022-11-25 15:26:11,676 INFO L895 garLoopResultBuilder]: At program point L397(lines 385 399) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-25 15:26:11,677 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 395) no Hoare annotation was computed. [2022-11-25 15:26:11,677 INFO L899 garLoopResultBuilder]: For program point L389-2(lines 389 395) no Hoare annotation was computed. [2022-11-25 15:26:11,677 INFO L902 garLoopResultBuilder]: At program point L472(lines 409 476) the Hoare annotation is: true [2022-11-25 15:26:11,677 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-11-25 15:26:11,677 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 439 445) no Hoare annotation was computed. [2022-11-25 15:26:11,678 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-25 15:26:11,678 INFO L895 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-25 15:26:11,678 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 207 218) no Hoare annotation was computed. [2022-11-25 15:26:11,678 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 207 218) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-25 15:26:11,678 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 207 218) no Hoare annotation was computed. [2022-11-25 15:26:11,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-25 15:26:11,684 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:26:11,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:26:11 BoogieIcfgContainer [2022-11-25 15:26:11,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:26:11,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:26:11,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:26:11,719 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:26:11,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:09" (3/4) ... [2022-11-25 15:26:11,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:26:11,729 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-25 15:26:11,730 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-25 15:26:11,730 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-25 15:26:11,730 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-25 15:26:11,739 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 15:26:11,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 15:26:11,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:26:11,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:26:11,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:26:11,776 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-25 15:26:11,776 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-25 15:26:11,778 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-11-25 15:26:11,779 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) [2022-11-25 15:26:11,780 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) [2022-11-25 15:26:11,781 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-11-25 15:26:11,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-11-25 15:26:11,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2022-11-25 15:26:11,783 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) [2022-11-25 15:26:11,816 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:26:11,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:26:11,817 INFO L158 Benchmark]: Toolchain (without parser) took 3737.50ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 81.7MB in the beginning and 47.4MB in the end (delta: 34.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,817 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:26:11,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.38ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 64.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 61.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,818 INFO L158 Benchmark]: Boogie Preprocessor took 55.60ms. Allocated memory is still 125.8MB. Free memory was 61.9MB in the beginning and 60.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,819 INFO L158 Benchmark]: RCFGBuilder took 486.08ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 46.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,819 INFO L158 Benchmark]: TraceAbstraction took 2520.03ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 46.0MB in the beginning and 52.7MB in the end (delta: -6.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,820 INFO L158 Benchmark]: Witness Printer took 103.43ms. Allocated memory is still 151.0MB. Free memory was 51.6MB in the beginning and 47.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:26:11,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.38ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 64.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 61.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.60ms. Allocated memory is still 125.8MB. Free memory was 61.9MB in the beginning and 60.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.08ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 46.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2520.03ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 46.0MB in the beginning and 52.7MB in the end (delta: -6.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 103.43ms. Allocated memory is still 151.0MB. Free memory was 51.6MB in the beginning and 47.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 848]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 719 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 329 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 161 PreInvPairs, 207 NumberOfFragments, 251 HoareAnnotationTreeSize, 161 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 862 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (\old(waterLevel) == waterLevel && !(0 == systemActive)) || !(pumpRunning == 0) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-25 15:26:11,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_021a0053-b68e-421b-b534-2a74c795aefc/bin/uautomizer-ZsLfNo2U6R/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 Result: TRUE