./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea --- 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-8393723 [2022-11-18 20:21:01,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:21:01,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:21:01,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:21:01,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:21:01,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:21:01,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:21:01,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:21:01,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:21:01,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:21:01,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:21:01,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:21:01,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:21:01,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:21:01,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:21:01,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:21:01,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:21:01,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:21:01,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:21:01,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:21:01,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:21:01,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:21:01,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:21:01,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:21:01,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:21:01,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:21:01,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:21:01,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:21:01,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:21:01,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:21:01,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:21:01,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:21:01,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:21:01,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:21:01,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:21:01,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:21:01,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:21:01,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:21:01,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:21:01,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:21:01,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:21:01,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:21:01,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:21:01,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:21:01,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:21:01,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:21:01,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:21:01,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:21:01,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:21:01,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:21:01,335 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:21:01,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:21:01,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:21:01,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:21:01,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:21:01,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:21:01,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:21:01,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:21:01,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:21:01,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:21:01,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:21:01,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:21:01,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:21:01,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:21:01,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:21:01,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:21:01,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:01,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:21:01,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:21:01,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:21:01,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:21:01,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:21:01,342 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:21:01,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:21:01,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:21:01,343 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_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea [2022-11-18 20:21:01,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:21:01,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:21:01,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:21:01,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:21:01,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:21:01,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2022-11-18 20:21:01,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/data/2246907db/1db160b76f494cb492d076742993e3cd/FLAG526f52070 [2022-11-18 20:21:02,417 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:21:02,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2022-11-18 20:21:02,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/data/2246907db/1db160b76f494cb492d076742993e3cd/FLAG526f52070 [2022-11-18 20:21:02,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/data/2246907db/1db160b76f494cb492d076742993e3cd [2022-11-18 20:21:02,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:21:02,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:21:02,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:02,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:21:02,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:21:02,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:02" (1/1) ... [2022-11-18 20:21:02,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778d6b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:02, skipping insertion in model container [2022-11-18 20:21:02,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:02" (1/1) ... [2022-11-18 20:21:02,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:21:02,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:21:03,061 WARN L234 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_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[2044,2057] [2022-11-18 20:21:03,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:03,261 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:21:03,278 WARN L234 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_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[2044,2057] [2022-11-18 20:21:03,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:03,400 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:21:03,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03 WrapperNode [2022-11-18 20:21:03,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:03,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:03,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:21:03,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:21:03,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,479 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 185 [2022-11-18 20:21:03,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:03,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:21:03,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:21:03,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:21:03,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:21:03,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:21:03,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:21:03,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:21:03,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (1/1) ... [2022-11-18 20:21:03,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:21:03,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:03,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:03,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:21:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:21:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 20:21:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 20:21:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 20:21:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 20:21:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 20:21:03,650 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 20:21:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 20:21:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 20:21:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 20:21:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 20:21:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:21:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:21:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-18 20:21:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-18 20:21:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-18 20:21:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-18 20:21:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:21:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 20:21:03,654 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 20:21:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:21:03,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:21:03,768 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:21:03,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:21:04,125 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:21:04,135 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:21:04,136 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:21:04,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:04 BoogieIcfgContainer [2022-11-18 20:21:04,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:21:04,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:21:04,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:21:04,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:21:04,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:21:02" (1/3) ... [2022-11-18 20:21:04,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aab830d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:04, skipping insertion in model container [2022-11-18 20:21:04,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:03" (2/3) ... [2022-11-18 20:21:04,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aab830d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:21:04, skipping insertion in model container [2022-11-18 20:21:04,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:04" (3/3) ... [2022-11-18 20:21:04,157 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2022-11-18 20:21:04,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:21:04,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:21:04,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:21:04,275 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ff6158b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:21:04,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:21:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 73 states have (on average 1.36986301369863) internal successors, (100), 82 states have internal predecessors, (100), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-18 20:21:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:21:04,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:04,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:04,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash -707310338, now seen corresponding path program 1 times [2022-11-18 20:21:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:04,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151444581] [2022-11-18 20:21:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:21:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:04,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:04,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151444581] [2022-11-18 20:21:04,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151444581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:04,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:04,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:21:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936216727] [2022-11-18 20:21:04,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:04,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:21:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:04,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:21:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:21:04,610 INFO L87 Difference]: Start difference. First operand has 100 states, 73 states have (on average 1.36986301369863) internal successors, (100), 82 states have internal predecessors, (100), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:04,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:04,691 INFO L93 Difference]: Finished difference Result 192 states and 259 transitions. [2022-11-18 20:21:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:21:04,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-11-18 20:21:04,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:04,711 INFO L225 Difference]: With dead ends: 192 [2022-11-18 20:21:04,711 INFO L226 Difference]: Without dead ends: 91 [2022-11-18 20:21:04,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:21:04,720 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:04,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:04,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-18 20:21:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-18 20:21:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 66 states have (on average 1.303030303030303) internal successors, (86), 74 states have internal predecessors, (86), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:21:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 117 transitions. [2022-11-18 20:21:04,813 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 117 transitions. Word has length 23 [2022-11-18 20:21:04,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:04,814 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 117 transitions. [2022-11-18 20:21:04,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 117 transitions. [2022-11-18 20:21:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:21:04,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:04,822 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] [2022-11-18 20:21:04,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:21:04,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:04,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 624156156, now seen corresponding path program 1 times [2022-11-18 20:21:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:04,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393388728] [2022-11-18 20:21:04,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:04,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:21:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:05,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393388728] [2022-11-18 20:21:05,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393388728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:05,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:05,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:05,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644694518] [2022-11-18 20:21:05,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:05,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:05,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:05,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:05,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:05,038 INFO L87 Difference]: Start difference. First operand 91 states and 117 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:05,061 INFO L93 Difference]: Finished difference Result 144 states and 184 transitions. [2022-11-18 20:21:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:05,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-11-18 20:21:05,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:05,064 INFO L225 Difference]: With dead ends: 144 [2022-11-18 20:21:05,064 INFO L226 Difference]: Without dead ends: 82 [2022-11-18 20:21:05,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:05,067 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 16 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:05,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-18 20:21:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-18 20:21:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 68 states have internal predecessors, (79), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-18 20:21:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2022-11-18 20:21:05,078 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 24 [2022-11-18 20:21:05,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:05,079 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2022-11-18 20:21:05,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2022-11-18 20:21:05,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:21:05,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:05,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:05,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:21:05,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:05,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1800989914, now seen corresponding path program 1 times [2022-11-18 20:21:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:05,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998044059] [2022-11-18 20:21:05,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:21:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:05,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:05,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998044059] [2022-11-18 20:21:05,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998044059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:05,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:05,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:05,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641537671] [2022-11-18 20:21:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:05,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:05,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:05,181 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:05,219 INFO L93 Difference]: Finished difference Result 231 states and 301 transitions. [2022-11-18 20:21:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 28 [2022-11-18 20:21:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:05,221 INFO L225 Difference]: With dead ends: 231 [2022-11-18 20:21:05,222 INFO L226 Difference]: Without dead ends: 156 [2022-11-18 20:21:05,223 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 [2022-11-18 20:21:05,224 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 85 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:05,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 228 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-18 20:21:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 153. [2022-11-18 20:21:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 125 states have internal predecessors, (147), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-18 20:21:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 199 transitions. [2022-11-18 20:21:05,251 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 199 transitions. Word has length 28 [2022-11-18 20:21:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:05,252 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 199 transitions. [2022-11-18 20:21:05,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 199 transitions. [2022-11-18 20:21:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:21:05,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:05,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:05,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:21:05,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash -40246052, now seen corresponding path program 1 times [2022-11-18 20:21:05,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:05,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561082460] [2022-11-18 20:21:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:05,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:21:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:05,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:05,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561082460] [2022-11-18 20:21:05,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561082460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:05,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:05,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:21:05,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348678715] [2022-11-18 20:21:05,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:05,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:05,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:05,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:05,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:05,447 INFO L87 Difference]: Start difference. First operand 153 states and 199 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:05,594 INFO L93 Difference]: Finished difference Result 405 states and 536 transitions. [2022-11-18 20:21:05,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:21:05,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 20:21:05,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:05,600 INFO L225 Difference]: With dead ends: 405 [2022-11-18 20:21:05,600 INFO L226 Difference]: Without dead ends: 259 [2022-11-18 20:21:05,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:05,603 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 68 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 392 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-18 20:21:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 246. [2022-11-18 20:21:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 179 states have (on average 1.2905027932960893) internal successors, (231), 196 states have internal predecessors, (231), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2022-11-18 20:21:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2022-11-18 20:21:05,667 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 32 [2022-11-18 20:21:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:05,668 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2022-11-18 20:21:05,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2022-11-18 20:21:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:21:05,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:05,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:05,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:21:05,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1083319393, now seen corresponding path program 1 times [2022-11-18 20:21:05,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:05,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472853037] [2022-11-18 20:21:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:05,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:21:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:21:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:21:05,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472853037] [2022-11-18 20:21:05,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472853037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:05,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:05,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:21:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288416535] [2022-11-18 20:21:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:05,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:05,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:05,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:21:05,855 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:21:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:06,270 INFO L93 Difference]: Finished difference Result 569 states and 736 transitions. [2022-11-18 20:21:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:21:06,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-11-18 20:21:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:06,275 INFO L225 Difference]: With dead ends: 569 [2022-11-18 20:21:06,275 INFO L226 Difference]: Without dead ends: 330 [2022-11-18 20:21:06,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:21:06,278 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 248 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:06,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 394 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:21:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-18 20:21:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 294. [2022-11-18 20:21:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 217 states have (on average 1.2672811059907834) internal successors, (275), 234 states have internal predecessors, (275), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2022-11-18 20:21:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 369 transitions. [2022-11-18 20:21:06,320 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 369 transitions. Word has length 54 [2022-11-18 20:21:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:06,320 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 369 transitions. [2022-11-18 20:21:06,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:21:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 369 transitions. [2022-11-18 20:21:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:21:06,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:06,323 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:06,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:21:06,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1105951647, now seen corresponding path program 1 times [2022-11-18 20:21:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:06,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807541186] [2022-11-18 20:21:06,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:06,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:21:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:21:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:21:06,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807541186] [2022-11-18 20:21:06,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807541186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:06,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:06,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:21:06,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724353076] [2022-11-18 20:21:06,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:06,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:06,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:21:06,491 INFO L87 Difference]: Start difference. First operand 294 states and 369 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:21:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:06,714 INFO L93 Difference]: Finished difference Result 599 states and 772 transitions. [2022-11-18 20:21:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:21:06,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-11-18 20:21:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:06,720 INFO L225 Difference]: With dead ends: 599 [2022-11-18 20:21:06,720 INFO L226 Difference]: Without dead ends: 312 [2022-11-18 20:21:06,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:06,724 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 67 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:06,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 334 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-18 20:21:06,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 300. [2022-11-18 20:21:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 223 states have (on average 1.2600896860986548) internal successors, (281), 240 states have internal predecessors, (281), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2022-11-18 20:21:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 375 transitions. [2022-11-18 20:21:06,755 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 375 transitions. Word has length 54 [2022-11-18 20:21:06,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:06,756 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 375 transitions. [2022-11-18 20:21:06,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:21:06,756 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 375 transitions. [2022-11-18 20:21:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-18 20:21:06,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:06,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:06,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:21:06,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:06,760 INFO L85 PathProgramCache]: Analyzing trace with hash -808559779, now seen corresponding path program 1 times [2022-11-18 20:21:06,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:06,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369168874] [2022-11-18 20:21:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:21:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:21:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:21:06,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:06,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369168874] [2022-11-18 20:21:06,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369168874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:06,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:06,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:21:06,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668811897] [2022-11-18 20:21:06,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:06,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:06,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:06,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:06,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:06,870 INFO L87 Difference]: Start difference. First operand 300 states and 375 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:21:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:07,226 INFO L93 Difference]: Finished difference Result 841 states and 1094 transitions. [2022-11-18 20:21:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:21:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 54 [2022-11-18 20:21:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:07,232 INFO L225 Difference]: With dead ends: 841 [2022-11-18 20:21:07,233 INFO L226 Difference]: Without dead ends: 548 [2022-11-18 20:21:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:07,241 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 222 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:07,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 293 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:21:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-18 20:21:07,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 541. [2022-11-18 20:21:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 404 states have (on average 1.24009900990099) internal successors, (501), 430 states have internal predecessors, (501), 71 states have call successors, (71), 63 states have call predecessors, (71), 65 states have return successors, (109), 70 states have call predecessors, (109), 71 states have call successors, (109) [2022-11-18 20:21:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 681 transitions. [2022-11-18 20:21:07,324 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 681 transitions. Word has length 54 [2022-11-18 20:21:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:07,325 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 681 transitions. [2022-11-18 20:21:07,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 20:21:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 681 transitions. [2022-11-18 20:21:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 20:21:07,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:07,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:07,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:21:07,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:07,340 INFO L85 PathProgramCache]: Analyzing trace with hash -734125181, now seen corresponding path program 1 times [2022-11-18 20:21:07,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:07,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697240806] [2022-11-18 20:21:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:07,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:21:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:21:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:21:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:21:07,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:07,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697240806] [2022-11-18 20:21:07,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697240806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:07,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:07,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:21:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108691546] [2022-11-18 20:21:07,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:07,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:21:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:07,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:21:07,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:07,647 INFO L87 Difference]: Start difference. First operand 541 states and 681 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:21:08,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:08,903 INFO L93 Difference]: Finished difference Result 1801 states and 2387 transitions. [2022-11-18 20:21:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:21:08,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-11-18 20:21:08,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:08,912 INFO L225 Difference]: With dead ends: 1801 [2022-11-18 20:21:08,913 INFO L226 Difference]: Without dead ends: 1267 [2022-11-18 20:21:08,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:21:08,920 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 374 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:08,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 543 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:21:08,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2022-11-18 20:21:09,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1171. [2022-11-18 20:21:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 860 states have (on average 1.2093023255813953) internal successors, (1040), 925 states have internal predecessors, (1040), 168 states have call successors, (168), 122 states have call predecessors, (168), 142 states have return successors, (294), 166 states have call predecessors, (294), 168 states have call successors, (294) [2022-11-18 20:21:09,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1502 transitions. [2022-11-18 20:21:09,094 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1502 transitions. Word has length 58 [2022-11-18 20:21:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:09,095 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1502 transitions. [2022-11-18 20:21:09,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:21:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1502 transitions. [2022-11-18 20:21:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 20:21:09,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:09,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:09,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:21:09,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:09,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash -353852961, now seen corresponding path program 1 times [2022-11-18 20:21:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:09,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395956713] [2022-11-18 20:21:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:09,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:21:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:21:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:21:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:21:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:21:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:21:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:21:09,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:09,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395956713] [2022-11-18 20:21:09,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395956713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:09,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:09,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:21:09,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377940716] [2022-11-18 20:21:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:09,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:21:09,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:21:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:09,247 INFO L87 Difference]: Start difference. First operand 1171 states and 1502 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:21:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:09,831 INFO L93 Difference]: Finished difference Result 1419 states and 1810 transitions. [2022-11-18 20:21:09,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:21:09,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 89 [2022-11-18 20:21:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:09,836 INFO L225 Difference]: With dead ends: 1419 [2022-11-18 20:21:09,836 INFO L226 Difference]: Without dead ends: 592 [2022-11-18 20:21:09,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:21:09,841 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 311 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:09,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 237 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:21:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-18 20:21:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 572. [2022-11-18 20:21:09,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 420 states have (on average 1.1714285714285715) internal successors, (492), 450 states have internal predecessors, (492), 81 states have call successors, (81), 60 states have call predecessors, (81), 70 states have return successors, (144), 81 states have call predecessors, (144), 81 states have call successors, (144) [2022-11-18 20:21:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 717 transitions. [2022-11-18 20:21:09,907 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 717 transitions. Word has length 89 [2022-11-18 20:21:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:09,907 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 717 transitions. [2022-11-18 20:21:09,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-18 20:21:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 717 transitions. [2022-11-18 20:21:09,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-18 20:21:09,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:09,918 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:09,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:21:09,919 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:09,919 INFO L85 PathProgramCache]: Analyzing trace with hash -753408287, now seen corresponding path program 1 times [2022-11-18 20:21:09,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:09,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066704794] [2022-11-18 20:21:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:21:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:21:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:21:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:21:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:21:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:21:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:21:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:21:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:21:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:21:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 20:21:10,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:10,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066704794] [2022-11-18 20:21:10,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066704794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:10,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25980651] [2022-11-18 20:21:10,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:10,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:10,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:21:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:21:10,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:21:10,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:10,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25980651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:10,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:21:10,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-11-18 20:21:10,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586120853] [2022-11-18 20:21:10,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:10,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:21:10,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:10,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:21:10,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:21:10,763 INFO L87 Difference]: Start difference. First operand 572 states and 717 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 20:21:10,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:10,970 INFO L93 Difference]: Finished difference Result 1278 states and 1600 transitions. [2022-11-18 20:21:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:21:10,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 106 [2022-11-18 20:21:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:10,972 INFO L225 Difference]: With dead ends: 1278 [2022-11-18 20:21:10,972 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:21:10,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:21:10,976 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 72 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:10,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 877 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:21:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:21:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:21:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:21:10,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2022-11-18 20:21:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:10,978 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:21:10,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-18 20:21:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:21:10,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:21:10,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:21:10,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:11,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:21:11,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:21:16,034 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 342 349) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 1 ~systemActive~0))) (or .cse0 (not (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0)))) [2022-11-18 20:21:16,034 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 342 349) no Hoare annotation was computed. [2022-11-18 20:21:16,034 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 342 349) no Hoare annotation was computed. [2022-11-18 20:21:16,034 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 258 264) no Hoare annotation was computed. [2022-11-18 20:21:16,035 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 258 264) the Hoare annotation is: true [2022-11-18 20:21:16,035 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 158 169) no Hoare annotation was computed. [2022-11-18 20:21:16,035 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 158 169) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 .cse1) (or .cse2 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse0 .cse1 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-11-18 20:21:16,035 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 158 169) no Hoare annotation was computed. [2022-11-18 20:21:16,035 INFO L899 garLoopResultBuilder]: For program point L897(line 897) no Hoare annotation was computed. [2022-11-18 20:21:16,036 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 876 905) no Hoare annotation was computed. [2022-11-18 20:21:16,036 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 876 905) the Hoare annotation is: true [2022-11-18 20:21:16,036 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 894) no Hoare annotation was computed. [2022-11-18 20:21:16,036 INFO L902 garLoopResultBuilder]: At program point L890-1(lines 890 894) the Hoare annotation is: true [2022-11-18 20:21:16,036 INFO L899 garLoopResultBuilder]: For program point L887(line 887) no Hoare annotation was computed. [2022-11-18 20:21:16,036 INFO L902 garLoopResultBuilder]: At program point L886-2(lines 886 900) the Hoare annotation is: true [2022-11-18 20:21:16,037 INFO L902 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: true [2022-11-18 20:21:16,037 INFO L899 garLoopResultBuilder]: For program point L882-1(line 882) no Hoare annotation was computed. [2022-11-18 20:21:16,037 INFO L902 garLoopResultBuilder]: At program point L901(lines 876 905) the Hoare annotation is: true [2022-11-18 20:21:16,037 INFO L895 garLoopResultBuilder]: At program point L366(lines 361 369) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= 0 ~systemActive~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse4 .cse5) .cse2) (or .cse0 .cse6 .cse7) (or .cse0 (and .cse4 .cse5 .cse3) .cse7) (or .cse1 .cse6))) [2022-11-18 20:21:16,037 INFO L899 garLoopResultBuilder]: For program point L238-1(lines 237 256) no Hoare annotation was computed. [2022-11-18 20:21:16,038 INFO L899 garLoopResultBuilder]: For program point L300(lines 300 308) no Hoare annotation was computed. [2022-11-18 20:21:16,038 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 313) no Hoare annotation was computed. [2022-11-18 20:21:16,038 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 234 257) no Hoare annotation was computed. [2022-11-18 20:21:16,038 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2022-11-18 20:21:16,038 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2022-11-18 20:21:16,039 INFO L895 garLoopResultBuilder]: At program point L61-1(lines 53 77) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0))) (let ((.cse5 (not (= 0 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse8)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse3) .cse5) (or .cse0 .cse6 .cse7 .cse5) (or .cse1 .cse2 (and .cse4 .cse8)) (or .cse1 (and .cse6 (<= 2 ~waterLevel~0)) .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) (and .cse4 .cse6 .cse8)) (or .cse0 .cse1 .cse7 .cse3)))) [2022-11-18 20:21:16,039 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-11-18 20:21:16,039 INFO L895 garLoopResultBuilder]: At program point L306(line 306) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1) (or .cse2 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,039 INFO L895 garLoopResultBuilder]: At program point L302(line 302) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse3 .cse1 .cse2) (or .cse1 .cse4 (and .cse0 (<= 1 |timeShift_processEnvironment_~tmp~2#1|))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,040 INFO L895 garLoopResultBuilder]: At program point L298(line 298) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse4 .cse1 .cse3) (or .cse4 .cse1 .cse2) (or .cse4 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,040 INFO L899 garLoopResultBuilder]: For program point L298-1(line 298) no Hoare annotation was computed. [2022-11-18 20:21:16,040 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse3) (not (= 0 ~systemActive~0))) (or .cse4 .cse1 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse1 (<= 2 ~waterLevel~0) .cse5) (or .cse0 .cse1 .cse5 .cse3))) [2022-11-18 20:21:16,040 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-11-18 20:21:16,041 INFO L895 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,041 INFO L895 garLoopResultBuilder]: At program point L311-1(lines 292 316) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse1 (<= 2 ~waterLevel~0) .cse5) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,041 INFO L899 garLoopResultBuilder]: For program point L245-1(lines 245 251) no Hoare annotation was computed. [2022-11-18 20:21:16,041 INFO L895 garLoopResultBuilder]: At program point L84(lines 79 86) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,042 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 234 257) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) (not (= 0 ~systemActive~0))) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2)))) [2022-11-18 20:21:16,042 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 234 257) no Hoare annotation was computed. [2022-11-18 20:21:16,042 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 142) no Hoare annotation was computed. [2022-11-18 20:21:16,042 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2022-11-18 20:21:16,042 INFO L895 garLoopResultBuilder]: At program point L138-2(lines 134 145) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse4 .cse1 .cse3) (or .cse4 .cse1 .cse2) (or .cse4 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,043 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 170 178) the Hoare annotation is: true [2022-11-18 20:21:16,043 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 170 178) no Hoare annotation was computed. [2022-11-18 20:21:16,043 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 170 178) no Hoare annotation was computed. [2022-11-18 20:21:16,043 INFO L902 garLoopResultBuilder]: At program point L944(lines 937 946) the Hoare annotation is: true [2022-11-18 20:21:16,043 INFO L895 garLoopResultBuilder]: At program point L106(lines 102 108) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point L453(lines 452 499) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 495) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 964) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:21:16,044 INFO L899 garLoopResultBuilder]: For program point L957-2(lines 957 964) no Hoare annotation was computed. [2022-11-18 20:21:16,045 INFO L895 garLoopResultBuilder]: At program point L474(line 474) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse2 .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse1))) [2022-11-18 20:21:16,045 INFO L902 garLoopResultBuilder]: At program point L503(lines 442 507) the Hoare annotation is: true [2022-11-18 20:21:16,045 INFO L895 garLoopResultBuilder]: At program point L437(lines 425 439) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 0 ~systemActive~0)) [2022-11-18 20:21:16,045 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 468) no Hoare annotation was computed. [2022-11-18 20:21:16,045 INFO L899 garLoopResultBuilder]: For program point L462-1(lines 462 468) no Hoare annotation was computed. [2022-11-18 20:21:16,046 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 435) no Hoare annotation was computed. [2022-11-18 20:21:16,046 INFO L899 garLoopResultBuilder]: For program point L429-1(lines 429 435) no Hoare annotation was computed. [2022-11-18 20:21:16,046 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 458) no Hoare annotation was computed. [2022-11-18 20:21:16,046 INFO L902 garLoopResultBuilder]: At program point L966(lines 947 969) the Hoare annotation is: true [2022-11-18 20:21:16,046 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:21:16,046 INFO L895 garLoopResultBuilder]: At program point L500(lines 451 501) the Hoare annotation is: false [2022-11-18 20:21:16,047 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 494) no Hoare annotation was computed. [2022-11-18 20:21:16,047 INFO L895 garLoopResultBuilder]: At program point L934(lines 930 936) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:21:16,047 INFO L895 garLoopResultBuilder]: At program point L488-2(lines 482 495) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse1 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-18 20:21:16,047 INFO L895 garLoopResultBuilder]: At program point L121(lines 116 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:21:16,047 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 478) no Hoare annotation was computed. [2022-11-18 20:21:16,048 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 472 478) no Hoare annotation was computed. [2022-11-18 20:21:16,048 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:21:16,048 INFO L895 garLoopResultBuilder]: At program point L497(lines 452 499) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse2 .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse1))) [2022-11-18 20:21:16,048 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse2 .cse1) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse1))) [2022-11-18 20:21:16,049 INFO L895 garLoopResultBuilder]: At program point L431(line 431) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2022-11-18 20:21:16,049 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 146 157) no Hoare annotation was computed. [2022-11-18 20:21:16,049 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 146 157) no Hoare annotation was computed. [2022-11-18 20:21:16,049 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 146 157) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-18 20:21:16,049 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2022-11-18 20:21:16,049 INFO L899 garLoopResultBuilder]: For program point L415-2(lines 415 419) no Hoare annotation was computed. [2022-11-18 20:21:16,050 INFO L895 garLoopResultBuilder]: At program point L285(line 285) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 .cse0 .cse1))) [2022-11-18 20:21:16,050 INFO L899 garLoopResultBuilder]: For program point L285-1(lines 266 290) no Hoare annotation was computed. [2022-11-18 20:21:16,050 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 221) no Hoare annotation was computed. [2022-11-18 20:21:16,050 INFO L895 garLoopResultBuilder]: At program point L220(lines 211 224) the Hoare annotation is: (let ((.cse3 (not (= 1 ~systemActive~0))) (.cse1 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|)) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (<= 2 ~waterLevel~0))) (and (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse0 .cse1 .cse2) .cse3 (and .cse0 .cse2 .cse4) (not (= ~methaneLevelCritical~0 0)))) (or (not (= |old(~pumpRunning~0)| 0)) .cse3 (and .cse1 .cse2) (not (<= 1 ~methaneLevelCritical~0)) (and .cse2 .cse4)))) [2022-11-18 20:21:16,051 INFO L895 garLoopResultBuilder]: At program point L280(line 280) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-18 20:21:16,051 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 282) no Hoare annotation was computed. [2022-11-18 20:21:16,051 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 266 290) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-18 20:21:16,051 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 287) no Hoare annotation was computed. [2022-11-18 20:21:16,051 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 338) no Hoare annotation was computed. [2022-11-18 20:21:16,051 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 266 290) no Hoare annotation was computed. [2022-11-18 20:21:16,052 INFO L895 garLoopResultBuilder]: At program point L330(line 330) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse2)) (.cse1 (not .cse2))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)))))) [2022-11-18 20:21:16,052 INFO L895 garLoopResultBuilder]: At program point L332-2(lines 325 341) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 0) .cse1 (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:21:16,052 INFO L899 garLoopResultBuilder]: For program point L330-1(line 330) no Hoare annotation was computed. [2022-11-18 20:21:16,052 INFO L895 garLoopResultBuilder]: At program point L421(lines 406 424) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (and .cse3 .cse4 (<= 2 ~waterLevel~0) .cse5)) (.cse1 (not .cse5)) (.cse2 (and (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1| 0) .cse3 .cse4 .cse5 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)))) [2022-11-18 20:21:16,053 INFO L895 garLoopResultBuilder]: At program point L322(lines 317 324) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (<= 2 ~waterLevel~0) (not (= ~methaneLevelCritical~0 0))))) [2022-11-18 20:21:16,053 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 350 360) the Hoare annotation is: true [2022-11-18 20:21:16,053 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 350 360) no Hoare annotation was computed. [2022-11-18 20:21:16,053 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 350 360) no Hoare annotation was computed. [2022-11-18 20:21:16,053 INFO L902 garLoopResultBuilder]: At program point L355(line 355) the Hoare annotation is: true [2022-11-18 20:21:16,053 INFO L899 garLoopResultBuilder]: For program point L355-1(line 355) no Hoare annotation was computed. [2022-11-18 20:21:16,057 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:16,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:21:16,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:21:16 BoogieIcfgContainer [2022-11-18 20:21:16,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:21:16,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:21:16,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:21:16,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:21:16,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:04" (3/4) ... [2022-11-18 20:21:16,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:21:16,120 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-18 20:21:16,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 20:21:16,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 20:21:16,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 20:21:16,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 20:21:16,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-18 20:21:16,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 20:21:16,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-18 20:21:16,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-18 20:21:16,137 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-18 20:21:16,137 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 20:21:16,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:21:16,138 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:21:16,139 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:21:16,171 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-18 20:21:16,172 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-18 20:21:16,174 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 1 == systemActive))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == 0)) || ((pumpRunning == 0 && tmp == 0) && 1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) [2022-11-18 20:21:16,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2022-11-18 20:21:16,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && tmp == methaneLevelCritical)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-18 20:21:16,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-18 20:21:16,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) && 1 <= \result) && pumpRunning == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-18 20:21:16,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-18 20:21:16,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0)) && ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0)) [2022-11-18 20:21:16,206 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:21:16,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:21:16,207 INFO L158 Benchmark]: Toolchain (without parser) took 13473.64ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 80.4MB in the beginning and 175.2MB in the end (delta: -94.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:21:16,207 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:21:16,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.12ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 82.3MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.44ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,209 INFO L158 Benchmark]: Boogie Preprocessor took 53.84ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,209 INFO L158 Benchmark]: RCFGBuilder took 602.68ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 62.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,210 INFO L158 Benchmark]: TraceAbstraction took 11967.97ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 61.3MB in the beginning and 180.4MB in the end (delta: -119.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,210 INFO L158 Benchmark]: Witness Printer took 97.41ms. Allocated memory is still 207.6MB. Free memory was 180.4MB in the beginning and 175.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:21:16,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.12ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 82.3MB in the end (delta: -2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.44ms. Allocated memory is still 115.3MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.84ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.68ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 62.5MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11967.97ms. Allocated memory was 115.3MB in the beginning and 207.6MB in the end (delta: 92.3MB). Free memory was 61.3MB in the beginning and 180.4MB in the end (delta: -119.1MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 97.41ms. Allocated memory is still 207.6MB. Free memory was 180.4MB in the beginning and 175.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: 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 10 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1513 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1463 mSDsluCounter, 3611 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2534 mSDsCounter, 448 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1950 IncrementalHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 448 mSolverCounterUnsat, 1077 mSDtfsCounter, 1950 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1171occurred in iteration=8, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 187 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 1775 PreInvPairs, 2192 NumberOfFragments, 1381 HoareAnnotationTreeSize, 1775 FomulaSimplifications, 5624 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 45 FomulaSimplificationsInter, 15202 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 628 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 617 ConstructedInterpolants, 0 QuantifiedInterpolants, 1093 SizeOfPredicates, 3 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 112/124 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: 79]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && 2 <= waterLevel) && tmp == methaneLevelCritical)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) && 1 <= \result) && pumpRunning == 0) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0)) && ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((tmp___0 == 0 && pumpRunning == \old(pumpRunning)) && pumpRunning == 0) && 1 == systemActive) && \result == 0)) - InvariantResult [Line: 947]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((!(1 == systemActive) || (pumpRunning == 0 && \result == 0)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive - InvariantResult [Line: 452]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 317]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 1 == systemActive))) && ((((!(1 == systemActive) || (tmp == 0 && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == 0)) || ((pumpRunning == 0 && tmp == 0) && 1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || \old(waterLevel) == waterLevel) && ((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || pumpRunning == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:21:16,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8663ee-93d0-42c4-a6f8-854a1d988aa2/bin/uautomizer-TMbwUNV5ro/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