./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a --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 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 --- 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-b5237d8 [2022-11-21 13:43:58,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:43:58,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:43:59,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:43:59,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:43:59,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:43:59,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:43:59,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:43:59,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:43:59,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:43:59,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:43:59,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:43:59,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:43:59,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:43:59,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:43:59,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:43:59,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:43:59,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:43:59,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:43:59,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:43:59,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:43:59,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:43:59,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:43:59,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:43:59,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:43:59,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:43:59,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:43:59,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:43:59,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:43:59,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:43:59,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:43:59,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:43:59,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:43:59,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:43:59,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:43:59,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:43:59,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:43:59,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:43:59,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:43:59,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:43:59,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:43:59,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:43:59,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:43:59,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:43:59,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:43:59,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:43:59,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:43:59,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:43:59,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:43:59,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:43:59,133 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:43:59,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:43:59,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:43:59,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:43:59,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:43:59,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:43:59,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:43:59,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:43:59,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:43:59,136 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:43:59,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:43:59,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:43:59,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:43:59,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:43:59,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:43:59,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:43:59,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:43:59,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:43:59,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:43:59,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:43:59,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:43:59,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:43:59,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:43:59,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:43:59,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:43:59,140 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_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8ef44eebf77bb9089ba7256f54c924b643d97224560b14ff4a2b7df3dcc9e0 [2022-11-21 13:43:59,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:43:59,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:43:59,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:43:59,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:43:59,522 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:43:59,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2022-11-21 13:44:03,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:44:03,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:44:03,603 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c [2022-11-21 13:44:03,616 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/data/85f4d8b6e/81e9b37743ef4933b19f867217a1026f/FLAGc48ea657f [2022-11-21 13:44:03,644 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/data/85f4d8b6e/81e9b37743ef4933b19f867217a1026f [2022-11-21 13:44:03,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:44:03,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:44:03,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:03,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:44:03,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:44:03,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:03" (1/1) ... [2022-11-21 13:44:03,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fdc821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:03, skipping insertion in model container [2022-11-21 13:44:03,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:03" (1/1) ... [2022-11-21 13:44:03,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:44:03,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:44:03,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c[3064,3077] [2022-11-21 13:44:04,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:04,087 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:44:04,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/sv-benchmarks/c/product-lines/minepump_spec1_product45.cil.c[3064,3077] [2022-11-21 13:44:04,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:04,275 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:44:04,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04 WrapperNode [2022-11-21 13:44:04,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:04,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:04,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:44:04,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:44:04,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,367 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 182 [2022-11-21 13:44:04,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:04,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:44:04,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:44:04,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:44:04,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,407 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:44:04,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:44:04,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:44:04,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:44:04,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (1/1) ... [2022-11-21 13:44:04,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:04,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:44:04,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:44:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:44:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-21 13:44:04,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-21 13:44:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 13:44:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 13:44:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 13:44:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 13:44:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-21 13:44:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-21 13:44:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-21 13:44:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-21 13:44:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 13:44:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 13:44:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-21 13:44:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-21 13:44:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:44:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-21 13:44:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-21 13:44:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:44:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:44:04,663 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:44:04,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:05,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:05,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:05,046 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 13:44:05,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:05 BoogieIcfgContainer [2022-11-21 13:44:05,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:05,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:05,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:05,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:05,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:44:03" (1/3) ... [2022-11-21 13:44:05,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7137cc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:05, skipping insertion in model container [2022-11-21 13:44:05,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:04" (2/3) ... [2022-11-21 13:44:05,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7137cc12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:05, skipping insertion in model container [2022-11-21 13:44:05,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:05" (3/3) ... [2022-11-21 13:44:05,062 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2022-11-21 13:44:05,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:05,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:44:05,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:05,163 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;@56709618, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:05,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:44:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-21 13:44:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 13:44:05,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:05,184 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] [2022-11-21 13:44:05,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 775812870, now seen corresponding path program 1 times [2022-11-21 13:44:05,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:05,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315859706] [2022-11-21 13:44:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 13:44:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315859706] [2022-11-21 13:44:05,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315859706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:05,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:05,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:05,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743131092] [2022-11-21 13:44:05,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:05,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:44:05,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:44:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:05,598 INFO L87 Difference]: Start difference. First operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) 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) [2022-11-21 13:44:05,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:05,652 INFO L93 Difference]: Finished difference Result 178 states and 241 transitions. [2022-11-21 13:44:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:44:05,654 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 [2022-11-21 13:44:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:05,664 INFO L225 Difference]: With dead ends: 178 [2022-11-21 13:44:05,665 INFO L226 Difference]: Without dead ends: 84 [2022-11-21 13:44:05,669 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 [2022-11-21 13:44:05,672 INFO L413 NwaCegarLoop]: 117 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, 117 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 [2022-11-21 13:44:05,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-21 13:44:05,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-21 13:44:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 69 states have internal predecessors, (81), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-21 13:44:05,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2022-11-21 13:44:05,725 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 23 [2022-11-21 13:44:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:05,726 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2022-11-21 13:44:05,726 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) [2022-11-21 13:44:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2022-11-21 13:44:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 13:44:05,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:05,730 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] [2022-11-21 13:44:05,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:44:05,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1120816717, now seen corresponding path program 1 times [2022-11-21 13:44:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:05,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355790813] [2022-11-21 13:44:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:05,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 13:44:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:05,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:05,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355790813] [2022-11-21 13:44:05,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355790813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:05,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:05,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:05,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930218179] [2022-11-21 13:44:05,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:05,885 INFO L87 Difference]: Start difference. First operand 84 states and 108 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) [2022-11-21 13:44:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:05,911 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2022-11-21 13:44:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:05,912 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 [2022-11-21 13:44:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:05,914 INFO L225 Difference]: With dead ends: 134 [2022-11-21 13:44:05,914 INFO L226 Difference]: Without dead ends: 75 [2022-11-21 13:44:05,915 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 [2022-11-21 13:44:05,917 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 12 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 174 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 [2022-11-21 13:44:05,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 174 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-21 13:44:05,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-21 13:44:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 63 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 13:44:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-11-21 13:44:05,933 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2022-11-21 13:44:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:05,934 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-11-21 13:44:05,934 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) [2022-11-21 13:44:05,934 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-11-21 13:44:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-21 13:44:05,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:05,936 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] [2022-11-21 13:44:05,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:44:05,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:05,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:05,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1182721273, now seen corresponding path program 1 times [2022-11-21 13:44:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:05,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424640410] [2022-11-21 13:44:05,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:06,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:06,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424640410] [2022-11-21 13:44:06,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424640410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:06,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:06,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:06,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846985232] [2022-11-21 13:44:06,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:06,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:06,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:06,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:06,053 INFO L87 Difference]: Start difference. First operand 75 states and 96 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) [2022-11-21 13:44:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:06,081 INFO L93 Difference]: Finished difference Result 143 states and 186 transitions. [2022-11-21 13:44:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:06,082 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 [2022-11-21 13:44:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:06,084 INFO L225 Difference]: With dead ends: 143 [2022-11-21 13:44:06,085 INFO L226 Difference]: Without dead ends: 75 [2022-11-21 13:44:06,086 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 [2022-11-21 13:44:06,088 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 94 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 [2022-11-21 13:44:06,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-21 13:44:06,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-21 13:44:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 63 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 13:44:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2022-11-21 13:44:06,107 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 28 [2022-11-21 13:44:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:06,107 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2022-11-21 13:44:06,108 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) [2022-11-21 13:44:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2022-11-21 13:44:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-21 13:44:06,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:06,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:06,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:44:06,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2028009394, now seen corresponding path program 1 times [2022-11-21 13:44:06,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:06,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401400702] [2022-11-21 13:44:06,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:06,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:44:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 13:44:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:06,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:06,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401400702] [2022-11-21 13:44:06,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401400702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:06,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:06,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:44:06,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395851256] [2022-11-21 13:44:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:06,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:44:06,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:06,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:44:06,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:44:06,263 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 13:44:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:06,661 INFO L93 Difference]: Finished difference Result 220 states and 277 transitions. [2022-11-21 13:44:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:44:06,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2022-11-21 13:44:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:06,664 INFO L225 Difference]: With dead ends: 220 [2022-11-21 13:44:06,679 INFO L226 Difference]: Without dead ends: 152 [2022-11-21 13:44:06,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 13:44:06,682 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 184 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:06,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 259 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 13:44:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-21 13:44:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 146. [2022-11-21 13:44:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 117 states have internal predecessors, (136), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-21 13:44:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2022-11-21 13:44:06,748 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 38 [2022-11-21 13:44:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:06,749 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2022-11-21 13:44:06,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 13:44:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2022-11-21 13:44:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-21 13:44:06,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:06,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:06,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:44:06,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash 300684586, now seen corresponding path program 1 times [2022-11-21 13:44:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:06,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7396115] [2022-11-21 13:44:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:06,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 13:44:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7396115] [2022-11-21 13:44:07,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7396115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:44:07,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124632150] [2022-11-21 13:44:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:44:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:44:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:44:07,087 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-21 13:44:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:07,594 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2022-11-21 13:44:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:44:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-11-21 13:44:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:07,597 INFO L225 Difference]: With dead ends: 162 [2022-11-21 13:44:07,598 INFO L226 Difference]: Without dead ends: 160 [2022-11-21 13:44:07,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:44:07,600 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:07,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 356 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 13:44:07,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-21 13:44:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2022-11-21 13:44:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 109 states have (on average 1.2293577981651376) internal successors, (134), 117 states have internal predecessors, (134), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-21 13:44:07,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2022-11-21 13:44:07,629 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 44 [2022-11-21 13:44:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:07,630 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2022-11-21 13:44:07,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-21 13:44:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2022-11-21 13:44:07,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-21 13:44:07,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:07,632 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] [2022-11-21 13:44:07,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:44:07,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:07,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash 467205787, now seen corresponding path program 1 times [2022-11-21 13:44:07,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:07,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344772217] [2022-11-21 13:44:07,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 13:44:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 13:44:07,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:07,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344772217] [2022-11-21 13:44:07,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344772217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:07,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:07,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:44:07,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117613719] [2022-11-21 13:44:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:07,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:44:07,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:07,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:44:07,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:44:07,878 INFO L87 Difference]: Start difference. First operand 146 states and 175 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) [2022-11-21 13:44:08,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:08,156 INFO L93 Difference]: Finished difference Result 295 states and 360 transitions. [2022-11-21 13:44:08,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:44:08,157 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 [2022-11-21 13:44:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:08,166 INFO L225 Difference]: With dead ends: 295 [2022-11-21 13:44:08,166 INFO L226 Difference]: Without dead ends: 156 [2022-11-21 13:44:08,167 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 [2022-11-21 13:44:08,169 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 65 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:08,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 324 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:44:08,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-21 13:44:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 149. [2022-11-21 13:44:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 120 states have internal predecessors, (137), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-21 13:44:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2022-11-21 13:44:08,234 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 54 [2022-11-21 13:44:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:08,235 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2022-11-21 13:44:08,235 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) [2022-11-21 13:44:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2022-11-21 13:44:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-21 13:44:08,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:08,238 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] [2022-11-21 13:44:08,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:44:08,243 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 489838041, now seen corresponding path program 1 times [2022-11-21 13:44:08,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:08,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189655157] [2022-11-21 13:44:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:08,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 13:44:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 13:44:08,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:08,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189655157] [2022-11-21 13:44:08,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189655157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:08,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:08,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 13:44:08,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782623661] [2022-11-21 13:44:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:08,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:44:08,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:08,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:44:08,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:44:08,473 INFO L87 Difference]: Start difference. First operand 149 states and 178 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) [2022-11-21 13:44:08,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:08,711 INFO L93 Difference]: Finished difference Result 301 states and 366 transitions. [2022-11-21 13:44:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:44:08,712 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 [2022-11-21 13:44:08,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:08,716 INFO L225 Difference]: With dead ends: 301 [2022-11-21 13:44:08,716 INFO L226 Difference]: Without dead ends: 159 [2022-11-21 13:44:08,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 13:44:08,730 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 138 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:08,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 251 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:44:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-21 13:44:08,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 151. [2022-11-21 13:44:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.219298245614035) internal successors, (139), 122 states have internal predecessors, (139), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-21 13:44:08,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 180 transitions. [2022-11-21 13:44:08,778 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 180 transitions. Word has length 54 [2022-11-21 13:44:08,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:08,783 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 180 transitions. [2022-11-21 13:44:08,786 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) [2022-11-21 13:44:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 180 transitions. [2022-11-21 13:44:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-21 13:44:08,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:08,794 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] [2022-11-21 13:44:08,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:44:08,795 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:08,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:08,796 INFO L85 PathProgramCache]: Analyzing trace with hash 764597655, now seen corresponding path program 1 times [2022-11-21 13:44:08,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:08,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511618096] [2022-11-21 13:44:08,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:08,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 13:44:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 13:44:09,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:09,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511618096] [2022-11-21 13:44:09,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511618096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:09,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:09,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:44:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379757747] [2022-11-21 13:44:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:09,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:44:09,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:44:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:44:09,015 INFO L87 Difference]: Start difference. First operand 151 states and 180 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) [2022-11-21 13:44:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:09,322 INFO L93 Difference]: Finished difference Result 409 states and 514 transitions. [2022-11-21 13:44:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 13:44:09,323 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 [2022-11-21 13:44:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:09,329 INFO L225 Difference]: With dead ends: 409 [2022-11-21 13:44:09,330 INFO L226 Difference]: Without dead ends: 265 [2022-11-21 13:44:09,332 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 [2022-11-21 13:44:09,334 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 197 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:09,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 270 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:44:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-21 13:44:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2022-11-21 13:44:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 198 states have (on average 1.2171717171717171) internal successors, (241), 210 states have internal predecessors, (241), 33 states have call successors, (33), 30 states have call predecessors, (33), 31 states have return successors, (48), 33 states have call predecessors, (48), 33 states have call successors, (48) [2022-11-21 13:44:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 322 transitions. [2022-11-21 13:44:09,410 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 322 transitions. Word has length 54 [2022-11-21 13:44:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:09,410 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 322 transitions. [2022-11-21 13:44:09,410 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) [2022-11-21 13:44:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 322 transitions. [2022-11-21 13:44:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-21 13:44:09,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:09,420 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] [2022-11-21 13:44:09,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:44:09,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:09,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1731524797, now seen corresponding path program 1 times [2022-11-21 13:44:09,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:09,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195840350] [2022-11-21 13:44:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:09,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:44:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 13:44:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 13:44:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 13:44:09,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:09,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195840350] [2022-11-21 13:44:09,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195840350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:09,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:09,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 13:44:09,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336041153] [2022-11-21 13:44:09,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:44:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:09,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:44:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:44:09,752 INFO L87 Difference]: Start difference. First operand 263 states and 322 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) [2022-11-21 13:44:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:10,877 INFO L93 Difference]: Finished difference Result 819 states and 1041 transitions. [2022-11-21 13:44:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 13:44:10,878 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 [2022-11-21 13:44:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:10,886 INFO L225 Difference]: With dead ends: 819 [2022-11-21 13:44:10,887 INFO L226 Difference]: Without dead ends: 563 [2022-11-21 13:44:10,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2022-11-21 13:44:10,892 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 408 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:10,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 450 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 13:44:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-21 13:44:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 538. [2022-11-21 13:44:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 400 states have (on average 1.1875) internal successors, (475), 428 states have internal predecessors, (475), 72 states have call successors, (72), 58 states have call predecessors, (72), 65 states have return successors, (111), 71 states have call predecessors, (111), 72 states have call successors, (111) [2022-11-21 13:44:10,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 658 transitions. [2022-11-21 13:44:11,000 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 658 transitions. Word has length 58 [2022-11-21 13:44:11,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:11,000 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 658 transitions. [2022-11-21 13:44:11,001 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) [2022-11-21 13:44:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 658 transitions. [2022-11-21 13:44:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 13:44:11,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:11,007 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] [2022-11-21 13:44:11,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:44:11,007 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1836694146, now seen corresponding path program 1 times [2022-11-21 13:44:11,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:11,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283279349] [2022-11-21 13:44:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 13:44:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 13:44:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 13:44:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 13:44:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 13:44:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 13:44:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 13:44:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 13:44:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 13:44:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 13:44:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 13:44:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 13:44:11,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:11,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283279349] [2022-11-21 13:44:11,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283279349] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:11,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081568370] [2022-11-21 13:44:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:11,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:11,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:11,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:44:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:11,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 13:44:11,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 13:44:12,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:44:12,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081568370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:12,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:44:12,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2022-11-21 13:44:12,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331318047] [2022-11-21 13:44:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:12,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 13:44:12,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:12,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 13:44:12,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-21 13:44:12,031 INFO L87 Difference]: Start difference. First operand 538 states and 658 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) [2022-11-21 13:44:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:12,314 INFO L93 Difference]: Finished difference Result 1172 states and 1432 transitions. [2022-11-21 13:44:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 13:44:12,315 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 [2022-11-21 13:44:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:12,317 INFO L225 Difference]: With dead ends: 1172 [2022-11-21 13:44:12,317 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 13:44:12,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-21 13:44:12,322 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 72 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:12,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1032 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 13:44:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 13:44:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 13:44:12,325 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) [2022-11-21 13:44:12,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 13:44:12,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2022-11-21 13:44:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:12,327 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:44:12,327 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) [2022-11-21 13:44:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:44:12,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 13:44:12,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 13:44:12,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:12,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 13:44:12,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 13:44:16,467 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 784 790) no Hoare annotation was computed. [2022-11-21 13:44:16,467 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 784 790) the Hoare annotation is: true [2022-11-21 13:44:16,467 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2022-11-21 13:44:16,468 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2022-11-21 13:44:16,468 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-21 13:44:16,468 INFO L895 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-21 13:44:16,468 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-21 13:44:16,468 INFO L895 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-21 13:44:16,468 INFO L899 garLoopResultBuilder]: For program point L824-1(line 824) no Hoare annotation was computed. [2022-11-21 13:44:16,469 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 760 783) no Hoare annotation was computed. [2022-11-21 13:44:16,469 INFO L895 garLoopResultBuilder]: At program point L837(line 837) 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))) [2022-11-21 13:44:16,469 INFO L895 garLoopResultBuilder]: At program point L837-1(lines 818 842) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse1 .cse4)) (or (and .cse1 .cse4) .cse2 (and .cse3 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-21 13:44:16,469 INFO L899 garLoopResultBuilder]: For program point L771-1(lines 771 777) no Hoare annotation was computed. [2022-11-21 13:44:16,469 INFO L895 garLoopResultBuilder]: At program point L156(lines 151 158) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-21 13:44:16,470 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 179) no Hoare annotation was computed. [2022-11-21 13:44:16,470 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 182) no Hoare annotation was computed. [2022-11-21 13:44:16,470 INFO L895 garLoopResultBuilder]: At program point L169-1(lines 161 185) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse6)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) .cse2 (and .cse3 .cse4 .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and .cse3 .cse5 .cse0) (and .cse5 .cse4 .cse0 .cse6))) (or .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse4 .cse1) (and .cse5 .cse4 .cse6 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)))))) [2022-11-21 13:44:16,470 INFO L895 garLoopResultBuilder]: At program point L892(lines 887 895) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2022-11-21 13:44:16,470 INFO L899 garLoopResultBuilder]: For program point L764-1(lines 763 782) no Hoare annotation was computed. [2022-11-21 13:44:16,471 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 834) no Hoare annotation was computed. [2022-11-21 13:44:16,471 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 839) no Hoare annotation was computed. [2022-11-21 13:44:16,471 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2022-11-21 13:44:16,471 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (and .cse0 .cse3)) (or .cse3 .cse1 .cse2))) [2022-11-21 13:44:16,471 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 760 783) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-21 13:44:16,471 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 760 783) no Hoare annotation was computed. [2022-11-21 13:44:16,472 INFO L895 garLoopResultBuilder]: At program point L873(lines 868 875) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse2 (not (<= 1 ~methaneLevelCritical~0))) (or .cse2 (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0))))) [2022-11-21 13:44:16,472 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2022-11-21 13:44:16,472 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (and .cse0 .cse1 (<= 1 |timeShift_processEnvironment_~tmp~7#1|)) .cse2 (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 .cse1 .cse4)) (or (and .cse1 .cse4) .cse2 (and .cse3 .cse0) (and .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)))) [2022-11-21 13:44:16,472 INFO L899 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2022-11-21 13:44:16,472 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2022-11-21 13:44:16,472 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2022-11-21 13:44:16,472 INFO L902 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2022-11-21 13:44:16,473 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-11-21 13:44:16,473 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-11-21 13:44:16,473 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2022-11-21 13:44:16,473 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-11-21 13:44:16,473 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2022-11-21 13:44:16,473 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-11-21 13:44:16,473 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2022-11-21 13:44:16,473 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-21 13:44:16,473 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 282) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point L275-2(lines 275 282) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L895 garLoopResultBuilder]: At program point L304(lines 300 306) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 13:44:16,474 INFO L895 garLoopResultBuilder]: At program point L746(lines 699 747) the Hoare annotation is: false [2022-11-21 13:44:16,474 INFO L902 garLoopResultBuilder]: At program point L259(lines 252 261) the Hoare annotation is: true [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point L701(lines 700 745) no Hoare annotation was computed. [2022-11-21 13:44:16,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 13:44:16,483 INFO L902 garLoopResultBuilder]: At program point L284(lines 265 287) the Hoare annotation is: true [2022-11-21 13:44:16,483 INFO L899 garLoopResultBuilder]: For program point L730(lines 730 741) no Hoare annotation was computed. [2022-11-21 13:44:16,483 INFO L895 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-21 13:44:16,484 INFO L895 garLoopResultBuilder]: At program point L743(lines 700 745) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-21 13:44:16,484 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 716) no Hoare annotation was computed. [2022-11-21 13:44:16,484 INFO L899 garLoopResultBuilder]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2022-11-21 13:44:16,484 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 13:44:16,485 INFO L899 garLoopResultBuilder]: For program point L702(lines 702 706) no Hoare annotation was computed. [2022-11-21 13:44:16,485 INFO L895 garLoopResultBuilder]: At program point L248(lines 244 250) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 13:44:16,485 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 740) no Hoare annotation was computed. [2022-11-21 13:44:16,485 INFO L895 garLoopResultBuilder]: At program point L319(lines 314 322) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 13:44:16,485 INFO L895 garLoopResultBuilder]: At program point L736-2(lines 730 741) 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 (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2022-11-21 13:44:16,486 INFO L895 garLoopResultBuilder]: At program point L311(lines 307 313) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 13:44:16,486 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 726) no Hoare annotation was computed. [2022-11-21 13:44:16,486 INFO L899 garLoopResultBuilder]: For program point L720-1(lines 720 726) no Hoare annotation was computed. [2022-11-21 13:44:16,486 INFO L902 garLoopResultBuilder]: At program point L749(lines 690 753) the Hoare annotation is: true [2022-11-21 13:44:16,487 INFO L895 garLoopResultBuilder]: At program point L712(line 712) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2022-11-21 13:44:16,487 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-21 13:44:16,487 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2022-11-21 13:44:16,488 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2022-11-21 13:44:16,488 INFO L895 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1|) .cse5)) (.cse4 (and .cse5 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or (not .cse1) .cse0 .cse3 (not (<= 1 ~methaneLevelCritical~0)) .cse4)))) [2022-11-21 13:44:16,488 INFO L895 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse2)) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~6#1| 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1)))) [2022-11-21 13:44:16,488 INFO L899 garLoopResultBuilder]: For program point L800(lines 800 808) no Hoare annotation was computed. [2022-11-21 13:44:16,489 INFO L899 garLoopResultBuilder]: For program point L796(lines 796 813) no Hoare annotation was computed. [2022-11-21 13:44:16,489 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 864) no Hoare annotation was computed. [2022-11-21 13:44:16,489 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 .cse2)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2022-11-21 13:44:16,491 INFO L895 garLoopResultBuilder]: At program point L858-2(lines 851 867) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) (and (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~8#1| ~methaneLevelCritical~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse3 .cse2))) [2022-11-21 13:44:16,491 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2022-11-21 13:44:16,491 INFO L895 garLoopResultBuilder]: At program point L947(lines 932 950) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse5)) (.cse4 (and .cse1 .cse2 .cse5 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) (not (= ~methaneLevelCritical~0 0)) .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse4 (and .cse2 .cse3))))) [2022-11-21 13:44:16,492 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 792 816) 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))))) [2022-11-21 13:44:16,492 INFO L895 garLoopResultBuilder]: At program point L848(lines 843 850) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (<= 2 ~waterLevel~0) .cse2))) [2022-11-21 13:44:16,492 INFO L899 garLoopResultBuilder]: For program point L941(lines 941 945) no Hoare annotation was computed. [2022-11-21 13:44:16,492 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2022-11-21 13:44:16,493 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 792 816) no Hoare annotation was computed. [2022-11-21 13:44:16,493 INFO L899 garLoopResultBuilder]: For program point L941-2(lines 941 945) no Hoare annotation was computed. [2022-11-21 13:44:16,493 INFO L895 garLoopResultBuilder]: At program point L811(line 811) 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))) [2022-11-21 13:44:16,493 INFO L899 garLoopResultBuilder]: For program point L811-1(lines 792 816) no Hoare annotation was computed. [2022-11-21 13:44:16,493 INFO L902 garLoopResultBuilder]: At program point L881(line 881) the Hoare annotation is: true [2022-11-21 13:44:16,494 INFO L899 garLoopResultBuilder]: For program point L881-1(line 881) no Hoare annotation was computed. [2022-11-21 13:44:16,494 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 876 886) the Hoare annotation is: true [2022-11-21 13:44:16,495 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 876 886) no Hoare annotation was computed. [2022-11-21 13:44:16,495 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 876 886) no Hoare annotation was computed. [2022-11-21 13:44:16,499 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:16,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:44:16,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:44:16 BoogieIcfgContainer [2022-11-21 13:44:16,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:44:16,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:44:16,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:44:16,553 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:44:16,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:05" (3/4) ... [2022-11-21 13:44:16,558 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:44:16,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-21 13:44:16,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-21 13:44:16,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-21 13:44:16,573 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-21 13:44:16,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-21 13:44:16,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-21 13:44:16,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-21 13:44:16,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-21 13:44:16,594 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 13:44:16,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 13:44:16,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:44:16,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:44:16,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:44:16,634 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-21 13:44:16,636 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-11-21 13:44:16,638 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0) && 1 == systemActive)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= tmp)) [2022-11-21 13:44:16,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(1 == systemActive) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) [2022-11-21 13:44:16,640 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && \result == 0) && 1 <= tmp)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) [2022-11-21 13:44:16,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= waterLevel) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-21 13:44:16,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2022-11-21 13:44:16,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-21 13:44:16,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-21 13:44:16,703 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:44:16,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:44:16,705 INFO L158 Benchmark]: Toolchain (without parser) took 13051.40ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 152.4MB in the beginning and 166.7MB in the end (delta: -14.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,705 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:16,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.65ms. Allocated memory is still 184.5MB. Free memory was 152.4MB in the beginning and 134.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.85ms. Allocated memory is still 184.5MB. Free memory was 134.3MB in the beginning and 131.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,706 INFO L158 Benchmark]: Boogie Preprocessor took 43.27ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 130.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,707 INFO L158 Benchmark]: RCFGBuilder took 637.01ms. Allocated memory is still 184.5MB. Free memory was 130.1MB in the beginning and 114.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,707 INFO L158 Benchmark]: TraceAbstraction took 11499.31ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 113.3MB in the beginning and 172.0MB in the end (delta: -58.7MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,708 INFO L158 Benchmark]: Witness Printer took 151.12ms. Allocated memory is still 224.4MB. Free memory was 172.0MB in the beginning and 166.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:44:16,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.65ms. Allocated memory is still 184.5MB. Free memory was 152.4MB in the beginning and 134.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.85ms. Allocated memory is still 184.5MB. Free memory was 134.3MB in the beginning and 131.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.27ms. Allocated memory is still 184.5MB. Free memory was 131.6MB in the beginning and 130.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 637.01ms. Allocated memory is still 184.5MB. Free memory was 130.1MB in the beginning and 114.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11499.31ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 113.3MB in the beginning and 172.0MB in the end (delta: -58.7MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. * Witness Printer took 151.12ms. Allocated memory is still 224.4MB. Free memory was 172.0MB in the beginning and 166.7MB 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: 155]: 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 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1324 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1285 mSDsluCounter, 3327 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2321 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1506 IncrementalHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 1006 mSDtfsCounter, 1506 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 286 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=9, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 62 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 1017 PreInvPairs, 1289 NumberOfFragments, 1121 HoareAnnotationTreeSize, 1017 FomulaSimplifications, 2484 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 42 FomulaSimplificationsInter, 8968 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 589 NumberOfCodeBlocks, 589 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 1013 SizeOfPredicates, 3 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 88/100 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: 252]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || (1 <= \result && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (1 <= \result && pumpRunning == 0)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 851]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= waterLevel) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((!(1 == systemActive) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= tmp) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) && ((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) == waterLevel)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && \result == 0) && 1 <= tmp)) && (!(1 == systemActive) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((tmp == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 0)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 0) && 1 == systemActive)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= tmp)) - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 13:44:16,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468f867b-b88a-4f1d-b2fe-85e6ca21eea7/bin/uautomizer-vX5HgA9Q3a/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