./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec17135ab572d6a825b46b4f9e469e7ed62f14a53646a8b17fddcdf7b172a2e6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:16:59,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:16:59,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:16:59,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:16:59,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:16:59,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:16:59,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:16:59,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:16:59,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:16:59,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:16:59,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:16:59,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:16:59,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:16:59,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:16:59,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:16:59,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:16:59,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:16:59,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:16:59,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:16:59,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:16:59,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:16:59,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:16:59,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:16:59,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:16:59,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:16:59,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:16:59,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:16:59,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:16:59,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:16:59,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:16:59,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:16:59,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:16:59,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:16:59,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:16:59,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:16:59,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:16:59,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:16:59,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:16:59,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:16:59,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:16:59,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:16:59,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:16:59,415 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:16:59,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:16:59,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:16:59,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:16:59,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:16:59,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:16:59,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:16:59,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:16:59,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:16:59,418 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:16:59,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:16:59,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:16:59,418 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:16:59,419 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:16:59,419 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:16:59,419 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:16:59,419 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:16:59,419 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:16:59,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:16:59,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:16:59,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:16:59,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:16:59,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:16:59,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:16:59,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:16:59,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:16:59,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:16:59,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:16:59,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:16:59,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:16:59,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec17135ab572d6a825b46b4f9e469e7ed62f14a53646a8b17fddcdf7b172a2e6 [2022-12-14 11:16:59,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:16:59,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:16:59,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:16:59,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:16:59,626 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:16:59,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c [2022-12-14 11:17:02,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:17:02,452 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:17:02,452 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c [2022-12-14 11:17:02,459 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/data/9ff33e127/43df9bc9be6d4c6e8ce5b45411bfa510/FLAG72bf0bef4 [2022-12-14 11:17:02,472 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/data/9ff33e127/43df9bc9be6d4c6e8ce5b45411bfa510 [2022-12-14 11:17:02,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:17:02,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:17:02,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:17:02,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:17:02,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:17:02,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cda616b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02, skipping insertion in model container [2022-12-14 11:17:02,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:17:02,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:17:02,653 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_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c[2807,2820] [2022-12-14 11:17:02,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:17:02,742 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:17:02,759 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_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c[2807,2820] [2022-12-14 11:17:02,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:17:02,819 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:17:02,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02 WrapperNode [2022-12-14 11:17:02,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:17:02,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:17:02,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:17:02,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:17:02,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,859 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 147 [2022-12-14 11:17:02,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:17:02,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:17:02,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:17:02,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:17:02,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:17:02,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:17:02,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:17:02,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:17:02,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (1/1) ... [2022-12-14 11:17:02,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:17:02,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:17:02,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:17:02,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:17:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:17:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 11:17:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 11:17:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 11:17:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 11:17:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 11:17:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 11:17:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 11:17:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 11:17:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:17:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:17:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 11:17:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 11:17:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:17:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 11:17:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 11:17:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:17:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:17:03,028 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:17:03,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:17:03,213 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:17:03,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:17:03,299 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 11:17:03,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:03 BoogieIcfgContainer [2022-12-14 11:17:03,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:17:03,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:17:03,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:17:03,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:17:03,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:17:02" (1/3) ... [2022-12-14 11:17:03,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9bf8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:17:03, skipping insertion in model container [2022-12-14 11:17:03,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:17:02" (2/3) ... [2022-12-14 11:17:03,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9bf8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:17:03, skipping insertion in model container [2022-12-14 11:17:03,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:03" (3/3) ... [2022-12-14 11:17:03,319 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product14.cil.c [2022-12-14 11:17:03,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:17:03,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:17:03,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:17:03,382 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@796e8e39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:17:03,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:17:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 41 states have internal predecessors, (49), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 11:17:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 11:17:03,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:03,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:17:03,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1706522249, now seen corresponding path program 1 times [2022-12-14 11:17:03,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:03,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255323048] [2022-12-14 11:17:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:17:03,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:03,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255323048] [2022-12-14 11:17:03,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255323048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:03,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:03,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:17:03,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152950906] [2022-12-14 11:17:03,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:03,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:17:03,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:17:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:17:03,614 INFO L87 Difference]: Start difference. First operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 41 states have internal predecessors, (49), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:03,672 INFO L93 Difference]: Finished difference Result 108 states and 143 transitions. [2022-12-14 11:17:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:17:03,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 11:17:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:03,682 INFO L225 Difference]: With dead ends: 108 [2022-12-14 11:17:03,682 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 11:17:03,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:17:03,687 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:03,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:17:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 11:17:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-12-14 11:17:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.28125) internal successors, (41), 37 states have internal predecessors, (41), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 11:17:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2022-12-14 11:17:03,716 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 17 [2022-12-14 11:17:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:03,717 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2022-12-14 11:17:03,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2022-12-14 11:17:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 11:17:03,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:03,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:17:03,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:17:03,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash -38138061, now seen corresponding path program 1 times [2022-12-14 11:17:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:03,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400930746] [2022-12-14 11:17:03,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:03,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:17:03,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:03,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400930746] [2022-12-14 11:17:03,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400930746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:03,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:03,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:17:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359077473] [2022-12-14 11:17:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:17:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:17:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:17:03,811 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:03,843 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2022-12-14 11:17:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:17:03,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 11:17:03,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:03,844 INFO L225 Difference]: With dead ends: 77 [2022-12-14 11:17:03,844 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 11:17:03,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:17:03,846 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:03,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 69 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:17:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 11:17:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 11:17:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:17:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-12-14 11:17:03,853 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 18 [2022-12-14 11:17:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:03,854 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-12-14 11:17:03,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-12-14 11:17:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 11:17:03,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:03,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:17:03,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:17:03,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash -842991380, now seen corresponding path program 1 times [2022-12-14 11:17:03,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:03,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960935899] [2022-12-14 11:17:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:17:04,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960935899] [2022-12-14 11:17:04,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960935899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:04,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:04,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:17:04,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536262646] [2022-12-14 11:17:04,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:04,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:17:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:17:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:17:04,011 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:04,069 INFO L93 Difference]: Finished difference Result 82 states and 101 transitions. [2022-12-14 11:17:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:17:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 11:17:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:04,071 INFO L225 Difference]: With dead ends: 82 [2022-12-14 11:17:04,071 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 11:17:04,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:17:04,072 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:04,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 49 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:17:04,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 11:17:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 11:17:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 32 states have internal predecessors, (34), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:17:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2022-12-14 11:17:04,081 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 20 [2022-12-14 11:17:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:04,081 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2022-12-14 11:17:04,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:17:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-12-14 11:17:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 11:17:04,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:04,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:17:04,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:17:04,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1651743338, now seen corresponding path program 1 times [2022-12-14 11:17:04,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:04,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868670826] [2022-12-14 11:17:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:17:04,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:04,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868670826] [2022-12-14 11:17:04,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868670826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:04,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:04,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:17:04,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724086791] [2022-12-14 11:17:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:04,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:17:04,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:17:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:17:04,166 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:17:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:04,255 INFO L93 Difference]: Finished difference Result 119 states and 144 transitions. [2022-12-14 11:17:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:17:04,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-14 11:17:04,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:04,257 INFO L225 Difference]: With dead ends: 119 [2022-12-14 11:17:04,257 INFO L226 Difference]: Without dead ends: 79 [2022-12-14 11:17:04,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:17:04,258 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 27 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 192 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:17:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-14 11:17:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2022-12-14 11:17:04,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 56 states have internal predecessors, (59), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 11:17:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2022-12-14 11:17:04,268 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 25 [2022-12-14 11:17:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:04,268 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2022-12-14 11:17:04,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:17:04,268 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2022-12-14 11:17:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 11:17:04,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:04,269 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] [2022-12-14 11:17:04,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:17:04,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:04,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:04,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1262573559, now seen corresponding path program 1 times [2022-12-14 11:17:04,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:04,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575329612] [2022-12-14 11:17:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:04,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:17:04,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:04,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575329612] [2022-12-14 11:17:04,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575329612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:04,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:04,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:17:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814759378] [2022-12-14 11:17:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:04,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:17:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:04,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:17:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:17:04,305 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 11:17:04,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:04,342 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2022-12-14 11:17:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:17:04,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-12-14 11:17:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:04,344 INFO L225 Difference]: With dead ends: 115 [2022-12-14 11:17:04,345 INFO L226 Difference]: Without dead ends: 113 [2022-12-14 11:17:04,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:17:04,346 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 26 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:04,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 80 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:17:04,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-14 11:17:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-12-14 11:17:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 84 states have internal predecessors, (89), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (25), 20 states have call predecessors, (25), 23 states have call successors, (25) [2022-12-14 11:17:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 137 transitions. [2022-12-14 11:17:04,361 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 137 transitions. Word has length 28 [2022-12-14 11:17:04,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:04,362 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 137 transitions. [2022-12-14 11:17:04,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 11:17:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 137 transitions. [2022-12-14 11:17:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 11:17:04,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:17:04,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:17:04,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:17:04,363 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:17:04,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:17:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1840278063, now seen corresponding path program 1 times [2022-12-14 11:17:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:17:04,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023372324] [2022-12-14 11:17:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:17:04,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:17:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:17:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:17:04,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:17:04,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023372324] [2022-12-14 11:17:04,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023372324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:17:04,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:17:04,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:17:04,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35821615] [2022-12-14 11:17:04,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:17:04,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:17:04,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:17:04,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:17:04,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:17:04,472 INFO L87 Difference]: Start difference. First operand 113 states and 137 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 11:17:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:17:04,548 INFO L93 Difference]: Finished difference Result 169 states and 204 transitions. [2022-12-14 11:17:04,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:17:04,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2022-12-14 11:17:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:17:04,549 INFO L225 Difference]: With dead ends: 169 [2022-12-14 11:17:04,549 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:17:04,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:17:04,550 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:17:04,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 32 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:17:04,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:17:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:17:04,551 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) [2022-12-14 11:17:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:17:04,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-12-14 11:17:04,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:17:04,552 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:17:04,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 11:17:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:17:04,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:17:04,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:17:04,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:17:04,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 11:17:04,879 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: true [2022-12-14 11:17:04,879 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-12-14 11:17:04,879 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 816) no Hoare annotation was computed. [2022-12-14 11:17:04,879 INFO L895 garLoopResultBuilder]: At program point L300(line 300) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 11:17:04,879 INFO L899 garLoopResultBuilder]: For program point L300-1(line 300) no Hoare annotation was computed. [2022-12-14 11:17:04,879 INFO L899 garLoopResultBuilder]: For program point L767-1(lines 766 785) no Hoare annotation was computed. [2022-12-14 11:17:04,880 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 11:17:04,880 INFO L895 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 11:17:04,880 INFO L895 garLoopResultBuilder]: At program point L801(line 801) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 11:17:04,880 INFO L899 garLoopResultBuilder]: For program point L801-1(line 801) no Hoare annotation was computed. [2022-12-14 11:17:04,880 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 316) no Hoare annotation was computed. [2022-12-14 11:17:04,880 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 11:17:04,880 INFO L895 garLoopResultBuilder]: At program point L302(lines 302 319) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)))) [2022-12-14 11:17:04,881 INFO L895 garLoopResultBuilder]: At program point L814-1(lines 795 819) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 11:17:04,881 INFO L895 garLoopResultBuilder]: At program point L302-1(lines 294 322) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)))) [2022-12-14 11:17:04,881 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 763 786) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-12-14 11:17:04,881 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 313) no Hoare annotation was computed. [2022-12-14 11:17:04,881 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 763 786) no Hoare annotation was computed. [2022-12-14 11:17:04,881 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2022-12-14 11:17:04,881 INFO L899 garLoopResultBuilder]: For program point L774-1(lines 774 780) no Hoare annotation was computed. [2022-12-14 11:17:04,882 INFO L895 garLoopResultBuilder]: At program point L803(lines 803 811) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2022-12-14 11:17:04,882 INFO L902 garLoopResultBuilder]: At program point L195-2(lines 195 209) the Hoare annotation is: true [2022-12-14 11:17:04,882 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 185 214) no Hoare annotation was computed. [2022-12-14 11:17:04,882 INFO L902 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: true [2022-12-14 11:17:04,882 INFO L899 garLoopResultBuilder]: For program point L191-1(line 191) no Hoare annotation was computed. [2022-12-14 11:17:04,882 INFO L902 garLoopResultBuilder]: At program point L210(lines 185 214) the Hoare annotation is: true [2022-12-14 11:17:04,882 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-12-14 11:17:04,882 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 185 214) the Hoare annotation is: true [2022-12-14 11:17:04,882 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2022-12-14 11:17:04,883 INFO L902 garLoopResultBuilder]: At program point L199-1(lines 199 203) the Hoare annotation is: true [2022-12-14 11:17:04,883 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 94 102) the Hoare annotation is: true [2022-12-14 11:17:04,883 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-12-14 11:17:04,883 INFO L899 garLoopResultBuilder]: For program point L721(lines 721 727) no Hoare annotation was computed. [2022-12-14 11:17:04,883 INFO L895 garLoopResultBuilder]: At program point L721-1(lines 721 727) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 11:17:04,883 INFO L895 garLoopResultBuilder]: At program point L746(lines 701 748) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 11:17:04,883 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 11:17:04,883 INFO L895 garLoopResultBuilder]: At program point L739-2(lines 731 744) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 11:17:04,884 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 11:17:04,884 INFO L899 garLoopResultBuilder]: For program point L702(lines 701 748) no Hoare annotation was computed. [2022-12-14 11:17:04,884 INFO L895 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-14 11:17:04,884 INFO L902 garLoopResultBuilder]: At program point L752(lines 691 756) the Hoare annotation is: true [2022-12-14 11:17:04,884 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 11:17:04,884 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 717) no Hoare annotation was computed. [2022-12-14 11:17:04,884 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2022-12-14 11:17:04,884 INFO L895 garLoopResultBuilder]: At program point L270(lines 270 277) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1)) [2022-12-14 11:17:04,885 INFO L895 garLoopResultBuilder]: At program point L749(lines 700 750) the Hoare annotation is: false [2022-12-14 11:17:04,885 INFO L902 garLoopResultBuilder]: At program point L270-2(lines 270 277) the Hoare annotation is: true [2022-12-14 11:17:04,885 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-12-14 11:17:04,885 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: true [2022-12-14 11:17:04,885 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 787 793) no Hoare annotation was computed. [2022-12-14 11:17:04,885 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 787 793) the Hoare annotation is: true [2022-12-14 11:17:04,885 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 853 863) no Hoare annotation was computed. [2022-12-14 11:17:04,885 INFO L902 garLoopResultBuilder]: At program point L858(line 858) the Hoare annotation is: true [2022-12-14 11:17:04,885 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 853 863) the Hoare annotation is: true [2022-12-14 11:17:04,885 INFO L899 garLoopResultBuilder]: For program point L858-1(line 858) no Hoare annotation was computed. [2022-12-14 11:17:04,889 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 11:17:04,891 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:17:04,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:17:04 BoogieIcfgContainer [2022-12-14 11:17:04,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:17:04,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:17:04,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:17:04,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:17:04,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:17:03" (3/4) ... [2022-12-14 11:17:04,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:17:04,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 11:17:04,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 11:17:04,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 11:17:04,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 11:17:04,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 11:17:04,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:17:04,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 11:17:04,921 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-12-14 11:17:04,922 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 11:17:04,922 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 11:17:04,922 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:17:04,922 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:17:04,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 11:17:04,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-12-14 11:17:04,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-12-14 11:17:04,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || tmp == 0) [2022-12-14 11:17:04,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || tmp == 0) [2022-12-14 11:17:04,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive [2022-12-14 11:17:04,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:17:04,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:17:04,958 INFO L158 Benchmark]: Toolchain (without parser) took 2481.69ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 88.8MB in the beginning and 142.2MB in the end (delta: -53.4MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,958 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 130.0MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:17:04,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 130.0MB. Free memory was 88.3MB in the beginning and 70.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.26ms. Allocated memory is still 130.0MB. Free memory was 70.4MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,958 INFO L158 Benchmark]: Boogie Preprocessor took 26.30ms. Allocated memory is still 130.0MB. Free memory was 68.3MB in the beginning and 66.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,959 INFO L158 Benchmark]: RCFGBuilder took 414.36ms. Allocated memory is still 130.0MB. Free memory was 66.7MB in the beginning and 99.6MB in the end (delta: -32.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,959 INFO L158 Benchmark]: TraceAbstraction took 1593.13ms. Allocated memory is still 172.0MB. Free memory was 144.0MB in the beginning and 51.1MB in the end (delta: 92.9MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,959 INFO L158 Benchmark]: Witness Printer took 50.73ms. Allocated memory is still 172.0MB. Free memory was 51.1MB in the beginning and 142.2MB in the end (delta: -91.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-12-14 11:17:04,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 130.0MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.22ms. Allocated memory is still 130.0MB. Free memory was 88.3MB in the beginning and 70.4MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.26ms. Allocated memory is still 130.0MB. Free memory was 70.4MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.30ms. Allocated memory is still 130.0MB. Free memory was 68.3MB in the beginning and 66.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.36ms. Allocated memory is still 130.0MB. Free memory was 66.7MB in the beginning and 99.6MB in the end (delta: -32.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1593.13ms. Allocated memory is still 172.0MB. Free memory was 144.0MB in the beginning and 51.1MB in the end (delta: 92.9MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. * Witness Printer took 50.73ms. Allocated memory is still 172.0MB. Free memory was 51.1MB in the beginning and 142.2MB in the end (delta: -91.1MB). Peak memory consumption was 4.3MB. 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: 140]: 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 8 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 475 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 244 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 231 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=5, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 200 PreInvPairs, 221 NumberOfFragments, 313 HoareAnnotationTreeSize, 200 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 587 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 22/22 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: 701]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 721]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1 - InvariantResult [Line: 795]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || tmp == 0) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || tmp == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 11:17:04,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd59bd8-12cd-4d07-877d-8b6d5c7e4f6f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE