./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:00:55,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:00:55,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:00:55,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:00:55,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:00:55,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:00:55,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:00:55,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:00:55,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:00:55,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:00:55,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:00:55,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:00:55,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:00:55,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:00:55,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:00:55,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:00:55,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:00:55,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:00:55,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:00:55,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:00:55,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:00:55,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:00:55,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:00:55,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:00:55,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:00:55,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:00:55,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:00:55,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:00:55,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:00:55,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:00:55,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:00:55,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:00:55,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:00:55,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:00:55,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:00:55,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:00:55,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:00:55,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:00:55,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:00:55,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:00:55,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:00:55,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:00:55,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:00:55,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:00:55,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:00:55,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:00:55,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:00:55,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:00:55,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:00:55,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:00:55,552 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:00:55,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:00:55,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:00:55,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:00:55,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:00:55,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:00:55,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:00:55,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:00:55,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:00:55,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:00:55,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:00:55,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:00:55,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:00:55,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:00:55,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:00:55,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:00:55,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:55,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:00:55,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:00:55,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:00:55,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:00:55,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:00:55,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:00:55,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:00:55,559 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:00:55,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:00:55,560 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2022-11-25 17:00:55,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:00:55,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:00:55,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:00:55,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:00:55,849 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:00:55,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2022-11-25 17:00:58,843 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:00:59,087 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:00:59,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2022-11-25 17:00:59,098 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/data/e72286b86/9427bd648fcd42a99004b9a734870c82/FLAGca0c81cb4 [2022-11-25 17:00:59,119 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/data/e72286b86/9427bd648fcd42a99004b9a734870c82 [2022-11-25 17:00:59,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:00:59,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:00:59,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:59,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:00:59,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:00:59,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a445dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59, skipping insertion in model container [2022-11-25 17:00:59,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:00:59,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:00:59,444 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_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2022-11-25 17:00:59,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:59,495 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:00:59,593 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_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2022-11-25 17:00:59,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:59,621 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:00:59,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59 WrapperNode [2022-11-25 17:00:59,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:59,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:59,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:00:59,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:00:59,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,695 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 198 [2022-11-25 17:00:59,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:59,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:00:59,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:00:59,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:00:59,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:00:59,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:00:59,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:00:59,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:00:59,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (1/1) ... [2022-11-25 17:00:59,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:59,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:00:59,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:00:59,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:00:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:00:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 17:00:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 17:00:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-25 17:00:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-25 17:00:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 17:00:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 17:00:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 17:00:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 17:00:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:00:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:00:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 17:00:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 17:00:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-25 17:00:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-25 17:00:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:00:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 17:00:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 17:00:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:00:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:00:59,980 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:00:59,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:01:00,333 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:01:00,340 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:01:00,340 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:01:00,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:00 BoogieIcfgContainer [2022-11-25 17:01:00,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:01:00,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:01:00,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:01:00,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:01:00,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:00:59" (1/3) ... [2022-11-25 17:01:00,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234598ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:00, skipping insertion in model container [2022-11-25 17:01:00,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:59" (2/3) ... [2022-11-25 17:01:00,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234598ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:00, skipping insertion in model container [2022-11-25 17:01:00,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:00" (3/3) ... [2022-11-25 17:01:00,353 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2022-11-25 17:01:00,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:01:00,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:01:00,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:01:00,484 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;@475eba6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:01:00,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:01:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 79 states have internal predecessors, (97), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 17:01:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 17:01:00,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:00,505 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] [2022-11-25 17:01:00,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash 231892345, now seen corresponding path program 1 times [2022-11-25 17:01:00,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:00,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803114788] [2022-11-25 17:01:00,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:00,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:01:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:00,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:00,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803114788] [2022-11-25 17:01:00,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803114788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:00,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:00,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:01:00,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482580796] [2022-11-25 17:01:00,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:00,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:01:00,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:01:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:01:00,830 INFO L87 Difference]: Start difference. First operand has 93 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 79 states have internal predecessors, (97), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) 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) [2022-11-25 17:01:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:00,876 INFO L93 Difference]: Finished difference Result 178 states and 241 transitions. [2022-11-25 17:01:00,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:01:00,878 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 [2022-11-25 17:01:00,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:00,887 INFO L225 Difference]: With dead ends: 178 [2022-11-25 17:01:00,888 INFO L226 Difference]: Without dead ends: 84 [2022-11-25 17:01:00,893 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 [2022-11-25 17:01:00,899 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 [2022-11-25 17:01:00,900 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] [2022-11-25 17:01:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-25 17:01:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-25 17:01:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 71 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:01:00,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2022-11-25 17:01:00,958 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 23 [2022-11-25 17:01:00,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:00,958 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2022-11-25 17:01:00,958 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) [2022-11-25 17:01:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2022-11-25 17:01:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:01:00,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:00,961 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] [2022-11-25 17:01:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:01:00,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash 960298062, now seen corresponding path program 1 times [2022-11-25 17:01:00,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:00,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239206152] [2022-11-25 17:01:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 17:01:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:01,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:01,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239206152] [2022-11-25 17:01:01,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239206152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:01,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:01,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:01:01,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332796304] [2022-11-25 17:01:01,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:01,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:01:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:01,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:01:01,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:01:01,080 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) [2022-11-25 17:01:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:01,098 INFO L93 Difference]: Finished difference Result 130 states and 166 transitions. [2022-11-25 17:01:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:01:01,099 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 [2022-11-25 17:01:01,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:01,101 INFO L225 Difference]: With dead ends: 130 [2022-11-25 17:01:01,101 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 17:01:01,102 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 [2022-11-25 17:01:01,103 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 16 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:01,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 17:01:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-25 17:01:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 65 states have internal predecessors, (76), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 17:01:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-11-25 17:01:01,114 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2022-11-25 17:01:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:01,115 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-11-25 17:01:01,115 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) [2022-11-25 17:01:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-11-25 17:01:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 17:01:01,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:01,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:01,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:01:01,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash -939866593, now seen corresponding path program 1 times [2022-11-25 17:01:01,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:01,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87164977] [2022-11-25 17:01:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:01:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:01,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:01,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87164977] [2022-11-25 17:01:01,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87164977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:01,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:01,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:01:01,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331041244] [2022-11-25 17:01:01,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:01,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:01:01,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:01:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:01:01,363 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-11-25 17:01:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:01,575 INFO L93 Difference]: Finished difference Result 252 states and 329 transitions. [2022-11-25 17:01:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 [2022-11-25 17:01:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:01,578 INFO L225 Difference]: With dead ends: 252 [2022-11-25 17:01:01,578 INFO L226 Difference]: Without dead ends: 184 [2022-11-25 17:01:01,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:01,580 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 197 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:01,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 485 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:01:01,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-25 17:01:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2022-11-25 17:01:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 151 states have internal predecessors, (181), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 17 states have call predecessors, (26), 25 states have call successors, (26) [2022-11-25 17:01:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 232 transitions. [2022-11-25 17:01:01,633 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 232 transitions. Word has length 28 [2022-11-25 17:01:01,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:01,643 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 232 transitions. [2022-11-25 17:01:01,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2022-11-25 17:01:01,643 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 232 transitions. [2022-11-25 17:01:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 17:01:01,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:01,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:01,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:01:01,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash 816837141, now seen corresponding path program 1 times [2022-11-25 17:01:01,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:01,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254797419] [2022-11-25 17:01:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:01,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:01:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:01,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:01,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254797419] [2022-11-25 17:01:01,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254797419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:01,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:01,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:01,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210567747] [2022-11-25 17:01:01,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:01,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:01,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:01,808 INFO L87 Difference]: Start difference. First operand 178 states and 232 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:01:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:01,909 INFO L93 Difference]: Finished difference Result 440 states and 590 transitions. [2022-11-25 17:01:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:01:01,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-25 17:01:01,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:01,913 INFO L225 Difference]: With dead ends: 440 [2022-11-25 17:01:01,913 INFO L226 Difference]: Without dead ends: 269 [2022-11-25 17:01:01,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:01:01,916 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 57 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:01,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:01:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-25 17:01:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 252. [2022-11-25 17:01:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 189 states have (on average 1.306878306878307) internal successors, (247), 206 states have internal predecessors, (247), 32 states have call successors, (32), 30 states have call predecessors, (32), 30 states have return successors, (42), 29 states have call predecessors, (42), 32 states have call successors, (42) [2022-11-25 17:01:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 321 transitions. [2022-11-25 17:01:01,956 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 321 transitions. Word has length 32 [2022-11-25 17:01:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:01,956 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 321 transitions. [2022-11-25 17:01:01,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:01:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 321 transitions. [2022-11-25 17:01:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:01:01,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:01,958 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] [2022-11-25 17:01:01,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:01:01,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:01,960 INFO L85 PathProgramCache]: Analyzing trace with hash 158900827, now seen corresponding path program 1 times [2022-11-25 17:01:01,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:01,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564610376] [2022-11-25 17:01:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:01,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:01:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:01:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564610376] [2022-11-25 17:01:02,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564610376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:02,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:02,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:01:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718812965] [2022-11-25 17:01:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:02,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:01:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:01:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:01:02,071 INFO L87 Difference]: Start difference. First operand 252 states and 321 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:02,258 INFO L93 Difference]: Finished difference Result 555 states and 717 transitions. [2022-11-25 17:01:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:01:02,261 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-11-25 17:01:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:02,268 INFO L225 Difference]: With dead ends: 555 [2022-11-25 17:01:02,269 INFO L226 Difference]: Without dead ends: 310 [2022-11-25 17:01:02,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:01:02,278 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 63 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:02,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 337 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:01:02,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-25 17:01:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2022-11-25 17:01:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 229 states have (on average 1.279475982532751) internal successors, (293), 246 states have internal predecessors, (293), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (52), 37 states have call predecessors, (52), 36 states have call successors, (52) [2022-11-25 17:01:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 381 transitions. [2022-11-25 17:01:02,353 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 381 transitions. Word has length 42 [2022-11-25 17:01:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:02,354 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 381 transitions. [2022-11-25 17:01:02,354 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 381 transitions. [2022-11-25 17:01:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:01:02,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:02,363 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] [2022-11-25 17:01:02,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:01:02,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1835243879, now seen corresponding path program 1 times [2022-11-25 17:01:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:02,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154218729] [2022-11-25 17:01:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:01:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:01:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:02,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:02,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154218729] [2022-11-25 17:01:02,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154218729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:02,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:02,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:02,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892662477] [2022-11-25 17:01:02,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:02,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:02,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:02,560 INFO L87 Difference]: Start difference. First operand 302 states and 381 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:02,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:02,717 INFO L93 Difference]: Finished difference Result 615 states and 796 transitions. [2022-11-25 17:01:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:01:02,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-11-25 17:01:02,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:02,721 INFO L225 Difference]: With dead ends: 615 [2022-11-25 17:01:02,721 INFO L226 Difference]: Without dead ends: 320 [2022-11-25 17:01:02,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:01:02,729 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 65 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:02,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 264 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:01:02,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-25 17:01:02,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 306. [2022-11-25 17:01:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 233 states have (on average 1.2746781115879828) internal successors, (297), 250 states have internal predecessors, (297), 36 states have call successors, (36), 30 states have call predecessors, (36), 36 states have return successors, (52), 37 states have call predecessors, (52), 36 states have call successors, (52) [2022-11-25 17:01:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 385 transitions. [2022-11-25 17:01:02,772 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 385 transitions. Word has length 42 [2022-11-25 17:01:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:02,774 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 385 transitions. [2022-11-25 17:01:02,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:02,775 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 385 transitions. [2022-11-25 17:01:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:01:02,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:02,776 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] [2022-11-25 17:01:02,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:01:02,777 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:02,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1642074967, now seen corresponding path program 1 times [2022-11-25 17:01:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:02,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309953230] [2022-11-25 17:01:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:02,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:01:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:01:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:02,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309953230] [2022-11-25 17:01:02,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309953230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:02,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:02,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:02,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610842100] [2022-11-25 17:01:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:02,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:02,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:02,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:02,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:02,901 INFO L87 Difference]: Start difference. First operand 306 states and 385 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:03,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:03,186 INFO L93 Difference]: Finished difference Result 915 states and 1201 transitions. [2022-11-25 17:01:03,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:01:03,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-11-25 17:01:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:03,191 INFO L225 Difference]: With dead ends: 915 [2022-11-25 17:01:03,191 INFO L226 Difference]: Without dead ends: 616 [2022-11-25 17:01:03,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:01:03,194 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 210 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:03,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 297 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:01:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-25 17:01:03,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 609. [2022-11-25 17:01:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 461 states have (on average 1.2494577006507592) internal successors, (576), 490 states have internal predecessors, (576), 75 states have call successors, (75), 71 states have call predecessors, (75), 72 states have return successors, (120), 73 states have call predecessors, (120), 75 states have call successors, (120) [2022-11-25 17:01:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 771 transitions. [2022-11-25 17:01:03,265 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 771 transitions. Word has length 42 [2022-11-25 17:01:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:03,265 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 771 transitions. [2022-11-25 17:01:03,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:01:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 771 transitions. [2022-11-25 17:01:03,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 17:01:03,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:03,267 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, 1, 1] [2022-11-25 17:01:03,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:01:03,268 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:03,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:03,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1100273917, now seen corresponding path program 1 times [2022-11-25 17:01:03,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:03,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902614031] [2022-11-25 17:01:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:03,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:01:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:01:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 17:01:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:03,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:03,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:03,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902614031] [2022-11-25 17:01:03,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902614031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:03,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:03,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:01:03,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2376792] [2022-11-25 17:01:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:03,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:01:03,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:03,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:01:03,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:01:03,431 INFO L87 Difference]: Start difference. First operand 609 states and 771 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:01:04,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:04,229 INFO L93 Difference]: Finished difference Result 2098 states and 2765 transitions. [2022-11-25 17:01:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:01:04,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-25 17:01:04,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:04,238 INFO L225 Difference]: With dead ends: 2098 [2022-11-25 17:01:04,238 INFO L226 Difference]: Without dead ends: 1496 [2022-11-25 17:01:04,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-11-25 17:01:04,242 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 303 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:04,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 397 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:01:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-11-25 17:01:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1379. [2022-11-25 17:01:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1034 states have (on average 1.2147001934235977) internal successors, (1256), 1109 states have internal predecessors, (1256), 178 states have call successors, (178), 142 states have call predecessors, (178), 166 states have return successors, (321), 178 states have call predecessors, (321), 178 states have call successors, (321) [2022-11-25 17:01:04,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1755 transitions. [2022-11-25 17:01:04,409 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1755 transitions. Word has length 46 [2022-11-25 17:01:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:04,410 INFO L495 AbstractCegarLoop]: Abstraction has 1379 states and 1755 transitions. [2022-11-25 17:01:04,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:01:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1755 transitions. [2022-11-25 17:01:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 17:01:04,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:04,413 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, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:04,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:01:04,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash 907727585, now seen corresponding path program 1 times [2022-11-25 17:01:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:04,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621589980] [2022-11-25 17:01:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:01:04,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:01:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:01:04,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:01:04,479 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:01:04,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:01:04,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:01:04,486 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:04,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:01:04,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:01:04 BoogieIcfgContainer [2022-11-25 17:01:04,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:01:04,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:01:04,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:01:04,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:01:04,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:00" (3/4) ... [2022-11-25 17:01:04,562 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:01:04,616 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:01:04,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:01:04,617 INFO L158 Benchmark]: Toolchain (without parser) took 5493.83ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 101.7MB in the beginning and 123.2MB in the end (delta: -21.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,617 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:01:04,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.40ms. Allocated memory is still 148.9MB. Free memory was 101.3MB in the beginning and 82.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.46ms. Allocated memory is still 148.9MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,618 INFO L158 Benchmark]: Boogie Preprocessor took 49.82ms. Allocated memory is still 148.9MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,619 INFO L158 Benchmark]: RCFGBuilder took 595.84ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 62.2MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,619 INFO L158 Benchmark]: TraceAbstraction took 4213.11ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 61.5MB in the beginning and 128.5MB in the end (delta: -67.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:01:04,619 INFO L158 Benchmark]: Witness Printer took 57.46ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 123.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:01:04,621 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 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.40ms. Allocated memory is still 148.9MB. Free memory was 101.3MB in the beginning and 82.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.46ms. Allocated memory is still 148.9MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.82ms. Allocated memory is still 148.9MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.84ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 62.2MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4213.11ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 61.5MB in the beginning and 128.5MB in the end (delta: -67.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.46ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 123.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 714]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE waterLevel < 2 [L899] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L87] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(methaneLevelCritical)) [L913] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L87] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___2=1, waterLevel=2] [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L139] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L197] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L960] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L963] COND FALSE !(waterLevel < 2) [L967] retValue_acc = 0 [L968] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND FALSE !(\read(tmp)) [L302] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND TRUE \read(tmp) [L177] CALL activatePump() [L222] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L177] RET activatePump() [L212] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification1_spec__1() [L758] int tmp ; [L759] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L763] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] tmp = isMethaneLevelCritical() [L765] COND TRUE \read(tmp) [L767] CALL, EXPR isPumpRunning() [L246] int retValue_acc ; [L249] retValue_acc = pumpRunning [L250] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L767] RET, EXPR isPumpRunning() [L767] tmp___0 = isPumpRunning() [L769] COND TRUE \read(tmp___0) [L771] CALL __automaton_fail() [L714] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 933 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 911 mSDsluCounter, 2432 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1641 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 893 IncrementalHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 791 mSDtfsCounter, 893 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1379occurred in iteration=8, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 169 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:01:04,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91bdebaa-783c-4c02-b48e-3fdf5a2fc493/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE