./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8 --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 a933c7098679a6972748d486040a9bdf507acce33a33e1309286157bdff8c762 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:05:42,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:05:42,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:05:42,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:05:42,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:05:42,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:05:42,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:05:42,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:05:42,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:05:42,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:05:42,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:05:42,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:05:42,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:05:42,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:05:42,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:05:42,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:05:42,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:05:42,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:05:42,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:05:42,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:05:42,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:05:42,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:05:42,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:05:42,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:05:42,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:05:42,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:05:42,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:05:42,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:05:42,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:05:42,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:05:42,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:05:42,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:05:42,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:05:42,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:05:42,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:05:42,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:05:42,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:05:42,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:05:42,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:05:42,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:05:42,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:05:42,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:05:42,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:05:42,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:05:42,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:05:42,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:05:42,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:05:42,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:05:42,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:05:42,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:05:42,465 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:05:42,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:05:42,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:05:42,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:05:42,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:05:42,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:05:42,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:05:42,469 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:05:42,469 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_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a933c7098679a6972748d486040a9bdf507acce33a33e1309286157bdff8c762 [2022-12-13 16:05:42,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:05:42,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:05:42,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:05:42,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:05:42,700 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:05:42,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c [2022-12-13 16:05:45,317 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:05:45,479 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:05:45,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c [2022-12-13 16:05:45,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/data/76293257b/0576c8f1b33c4cee92c25bb1049a6094/FLAG6c17b8ddf [2022-12-13 16:05:45,496 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/data/76293257b/0576c8f1b33c4cee92c25bb1049a6094 [2022-12-13 16:05:45,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:05:45,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:05:45,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:05:45,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:05:45,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:05:45,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203a3dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45, skipping insertion in model container [2022-12-13 16:05:45,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:05:45,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:05:45,714 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_bb13ba33-5908-4906-addf-be5ad904aab0/sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c[18260,18273] [2022-12-13 16:05:45,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:05:45,725 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:05:45,769 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_bb13ba33-5908-4906-addf-be5ad904aab0/sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c[18260,18273] [2022-12-13 16:05:45,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:05:45,782 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:05:45,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45 WrapperNode [2022-12-13 16:05:45,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:05:45,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:05:45,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:05:45,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:05:45,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,814 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 195 [2022-12-13 16:05:45,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:05:45,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:05:45,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:05:45,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:05:45,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:05:45,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:05:45,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:05:45,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:05:45,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (1/1) ... [2022-12-13 16:05:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:05:45,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:05:45,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:05:45,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 16:05:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 16:05:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 16:05:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 16:05:45,892 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 16:05:45,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-12-13 16:05:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-12-13 16:05:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 16:05:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 16:05:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:05:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 16:05:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 16:05:45,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:05:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:05:45,953 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:05:45,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:05:46,157 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:05:46,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:05:46,163 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:05:46,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:05:46 BoogieIcfgContainer [2022-12-13 16:05:46,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:05:46,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:05:46,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:05:46,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:05:46,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:05:45" (1/3) ... [2022-12-13 16:05:46,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d85ac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:05:46, skipping insertion in model container [2022-12-13 16:05:46,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:05:45" (2/3) ... [2022-12-13 16:05:46,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d85ac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:05:46, skipping insertion in model container [2022-12-13 16:05:46,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:05:46" (3/3) ... [2022-12-13 16:05:46,172 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product24.cil.c [2022-12-13 16:05:46,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:05:46,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:05:46,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:05:46,242 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;@5bac5699, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:05:46,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:05:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 74 states have internal predecessors, (90), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 16:05:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 16:05:46,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:46,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:46,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:46,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:46,259 INFO L85 PathProgramCache]: Analyzing trace with hash 488850844, now seen corresponding path program 1 times [2022-12-13 16:05:46,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:46,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975906874] [2022-12-13 16:05:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:46,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:46,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975906874] [2022-12-13 16:05:46,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975906874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:46,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:46,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:05:46,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171571684] [2022-12-13 16:05:46,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:46,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:05:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:05:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:05:46,448 INFO L87 Difference]: Start difference. First operand has 87 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 74 states have internal predecessors, (90), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:46,481 INFO L93 Difference]: Finished difference Result 166 states and 227 transitions. [2022-12-13 16:05:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:05:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-13 16:05:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:46,491 INFO L225 Difference]: With dead ends: 166 [2022-12-13 16:05:46,491 INFO L226 Difference]: Without dead ends: 78 [2022-12-13 16:05:46,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:05:46,498 INFO L413 NwaCegarLoop]: 110 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, 110 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 [2022-12-13 16:05:46,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:46,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-13 16:05:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-12-13 16:05:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 66 states have internal predecessors, (76), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-13 16:05:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2022-12-13 16:05:46,531 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 19 [2022-12-13 16:05:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:46,531 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2022-12-13 16:05:46,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2022-12-13 16:05:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 16:05:46,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:46,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:46,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:05:46,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:46,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2030303846, now seen corresponding path program 1 times [2022-12-13 16:05:46,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:46,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909120502] [2022-12-13 16:05:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:46,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:46,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:46,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909120502] [2022-12-13 16:05:46,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909120502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:46,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:46,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:05:46,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938740599] [2022-12-13 16:05:46,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:46,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:05:46,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:46,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:05:46,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:05:46,625 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:46,642 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-12-13 16:05:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:05:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 16:05:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:46,644 INFO L225 Difference]: With dead ends: 117 [2022-12-13 16:05:46,644 INFO L226 Difference]: Without dead ends: 69 [2022-12-13 16:05:46,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:05:46,646 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 17 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 154 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 [2022-12-13 16:05:46,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 154 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-13 16:05:46,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-12-13 16:05:46,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 60 states have internal predecessors, (69), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 16:05:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2022-12-13 16:05:46,656 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 20 [2022-12-13 16:05:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:46,656 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2022-12-13 16:05:46,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2022-12-13 16:05:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 16:05:46,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:46,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:46,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:05:46,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:46,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2108405867, now seen corresponding path program 1 times [2022-12-13 16:05:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:46,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093999817] [2022-12-13 16:05:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:46,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:46,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:46,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093999817] [2022-12-13 16:05:46,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093999817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:46,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:46,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:05:46,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909245592] [2022-12-13 16:05:46,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:46,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:05:46,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:46,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:05:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:05:46,759 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:46,841 INFO L93 Difference]: Finished difference Result 169 states and 222 transitions. [2022-12-13 16:05:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:05:46,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-13 16:05:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:46,843 INFO L225 Difference]: With dead ends: 169 [2022-12-13 16:05:46,843 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 16:05:46,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:05:46,844 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 152 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:46,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 287 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 16:05:46,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-12-13 16:05:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 90 states have internal predecessors, (107), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (15), 9 states have call predecessors, (15), 14 states have call successors, (15) [2022-12-13 16:05:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2022-12-13 16:05:46,856 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 25 [2022-12-13 16:05:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:46,856 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2022-12-13 16:05:46,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2022-12-13 16:05:46,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 16:05:46,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:46,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:46,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:05:46,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:46,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:46,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1698329658, now seen corresponding path program 1 times [2022-12-13 16:05:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:46,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541438589] [2022-12-13 16:05:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:46,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:46,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541438589] [2022-12-13 16:05:46,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541438589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:46,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:46,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:05:46,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931023361] [2022-12-13 16:05:46,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:46,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:05:46,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:46,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:05:46,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:05:46,938 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:46,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:46,995 INFO L93 Difference]: Finished difference Result 286 states and 391 transitions. [2022-12-13 16:05:46,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:05:46,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-13 16:05:46,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:46,997 INFO L225 Difference]: With dead ends: 286 [2022-12-13 16:05:46,997 INFO L226 Difference]: Without dead ends: 189 [2022-12-13 16:05:46,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:05:46,999 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 61 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:46,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 357 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-13 16:05:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-12-13 16:05:47,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 142 states have (on average 1.3380281690140845) internal successors, (190), 161 states have internal predecessors, (190), 28 states have call successors, (28), 20 states have call predecessors, (28), 18 states have return successors, (33), 16 states have call predecessors, (33), 28 states have call successors, (33) [2022-12-13 16:05:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 251 transitions. [2022-12-13 16:05:47,017 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 251 transitions. Word has length 28 [2022-12-13 16:05:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:47,017 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 251 transitions. [2022-12-13 16:05:47,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 251 transitions. [2022-12-13 16:05:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 16:05:47,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:47,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:47,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:05:47,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:47,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:47,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1391340363, now seen corresponding path program 1 times [2022-12-13 16:05:47,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:47,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454876183] [2022-12-13 16:05:47,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:47,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:47,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:47,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454876183] [2022-12-13 16:05:47,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454876183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:47,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:47,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:05:47,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738539803] [2022-12-13 16:05:47,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:47,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:05:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:05:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:05:47,069 INFO L87 Difference]: Start difference. First operand 189 states and 251 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:47,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:47,091 INFO L93 Difference]: Finished difference Result 325 states and 440 transitions. [2022-12-13 16:05:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:05:47,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-13 16:05:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:47,092 INFO L225 Difference]: With dead ends: 325 [2022-12-13 16:05:47,092 INFO L226 Difference]: Without dead ends: 143 [2022-12-13 16:05:47,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:05:47,094 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:47,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-12-13 16:05:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2022-12-13 16:05:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 117 states have internal predecessors, (138), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (18), 14 states have call predecessors, (18), 16 states have call successors, (18) [2022-12-13 16:05:47,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2022-12-13 16:05:47,105 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 30 [2022-12-13 16:05:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:47,106 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2022-12-13 16:05:47,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2022-12-13 16:05:47,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 16:05:47,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:05:47,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:05:47,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:05:47,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:05:47,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:05:47,107 INFO L85 PathProgramCache]: Analyzing trace with hash -52551700, now seen corresponding path program 1 times [2022-12-13 16:05:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:05:47,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400577130] [2022-12-13 16:05:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:05:47,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:05:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 16:05:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:05:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:05:47,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:05:47,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400577130] [2022-12-13 16:05:47,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400577130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:05:47,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:05:47,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:05:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30167041] [2022-12-13 16:05:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:05:47,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:05:47,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:05:47,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:05:47,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:05:47,171 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) 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) [2022-12-13 16:05:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:05:47,246 INFO L93 Difference]: Finished difference Result 151 states and 183 transitions. [2022-12-13 16:05:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:05:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) 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 [2022-12-13 16:05:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:05:47,248 INFO L225 Difference]: With dead ends: 151 [2022-12-13 16:05:47,248 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 16:05:47,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:05:47,249 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 55 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:05:47,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 147 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:05:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 16:05:47,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 16:05:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:05:47,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 16:05:47,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-12-13 16:05:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:05:47,251 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:05:47,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) 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) [2022-12-13 16:05:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 16:05:47,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 16:05:47,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 16:05:47,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:05:47,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 693 700) no Hoare annotation was computed. [2022-12-13 16:05:47,780 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 693 700) the Hoare annotation is: true [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 693 700) no Hoare annotation was computed. [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 626 632) no Hoare annotation was computed. [2022-12-13 16:05:47,780 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 626 632) the Hoare annotation is: true [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point L831-1(lines 827 838) no Hoare annotation was computed. [2022-12-13 16:05:47,780 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 827 838) the Hoare annotation is: true [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 827 838) no Hoare annotation was computed. [2022-12-13 16:05:47,780 INFO L899 garLoopResultBuilder]: For program point L956(line 956) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 909) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 602 625) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 912) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L895 garLoopResultBuilder]: At program point L899-1(lines 891 915) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~8#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point L606-1(lines 605 624) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 676) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L899 garLoopResultBuilder]: For program point L664(lines 664 681) no Hoare annotation was computed. [2022-12-13 16:05:47,781 INFO L895 garLoopResultBuilder]: At program point getWaterLevel_returnLabel#1(lines 871 879) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-12-13 16:05:47,781 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 952 959) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,781 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 602 625) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point L674(line 674) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point L670(line 670) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point isMethaneLevelCritical_returnLabel#1(lines 839 847) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,782 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 625) no Hoare annotation was computed. [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point isMethaneAlarm_returnLabel#1(lines 701 711) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 712 720) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-12-13 16:05:47,782 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 956) no Hoare annotation was computed. [2022-12-13 16:05:47,782 INFO L899 garLoopResultBuilder]: For program point L807(lines 807 811) no Hoare annotation was computed. [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point L679-1(lines 660 684) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-12-13 16:05:47,782 INFO L895 garLoopResultBuilder]: At program point L807-2(lines 803 814) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 613 619) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-12-13 16:05:47,783 INFO L895 garLoopResultBuilder]: At program point startSystem_returnLabel#1(lines 791 798) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-12-13 16:05:47,783 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 117 126) the Hoare annotation is: true [2022-12-13 16:05:47,784 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 928 934) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 16:05:47,784 INFO L902 garLoopResultBuilder]: At program point L585(lines 522 589) the Hoare annotation is: true [2022-12-13 16:05:47,784 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 130 152) the Hoare annotation is: true [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 558) no Hoare annotation was computed. [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point L552-1(lines 552 558) no Hoare annotation was computed. [2022-12-13 16:05:47,784 INFO L895 garLoopResultBuilder]: At program point L544(line 544) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-12-13 16:05:47,784 INFO L899 garLoopResultBuilder]: For program point L780(lines 780 786) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point L780-1(lines 780 786) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 16:05:47,785 INFO L895 garLoopResultBuilder]: At program point L582(lines 531 583) the Hoare annotation is: false [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L895 garLoopResultBuilder]: At program point L570-2(lines 562 577) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point L533(lines 532 581) no Hoare annotation was computed. [2022-12-13 16:05:47,785 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 577) no Hoare annotation was computed. [2022-12-13 16:05:47,786 INFO L895 garLoopResultBuilder]: At program point L554(line 554) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 16:05:47,786 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 16:05:47,786 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 935 941) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 16:05:47,786 INFO L895 garLoopResultBuilder]: At program point L579(lines 532 581) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 16:05:47,786 INFO L899 garLoopResultBuilder]: For program point L542(lines 542 548) no Hoare annotation was computed. [2022-12-13 16:05:47,786 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 542 548) no Hoare annotation was computed. [2022-12-13 16:05:47,786 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 538) no Hoare annotation was computed. [2022-12-13 16:05:47,786 INFO L895 garLoopResultBuilder]: At program point stopSystem_returnLabel#1(lines 776 790) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 16:05:47,787 INFO L895 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: false [2022-12-13 16:05:47,787 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 942 950) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 16:05:47,787 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 815 826) no Hoare annotation was computed. [2022-12-13 16:05:47,787 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 815 826) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-12-13 16:05:47,787 INFO L899 garLoopResultBuilder]: For program point L819-1(lines 815 826) no Hoare annotation was computed. [2022-12-13 16:05:47,787 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 655) no Hoare annotation was computed. [2022-12-13 16:05:47,787 INFO L899 garLoopResultBuilder]: For program point L766(lines 766 770) no Hoare annotation was computed. [2022-12-13 16:05:47,787 INFO L899 garLoopResultBuilder]: For program point L766-2(lines 766 770) no Hoare annotation was computed. [2022-12-13 16:05:47,787 INFO L895 garLoopResultBuilder]: At program point isLowWaterSensorDry_returnLabel#1(lines 880 888) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L895 garLoopResultBuilder]: At program point L653(line 653) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L899 garLoopResultBuilder]: For program point L653-1(lines 634 658) no Hoare annotation was computed. [2022-12-13 16:05:47,788 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 658) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L895 garLoopResultBuilder]: At program point isLowWaterLevel_returnLabel#1(lines 757 775) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 634 658) no Hoare annotation was computed. [2022-12-13 16:05:47,788 INFO L895 garLoopResultBuilder]: At program point L648(line 648) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L895 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-12-13 16:05:47,788 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 650) no Hoare annotation was computed. [2022-12-13 16:05:47,791 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 16:05:47,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:05:47,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:05:47 BoogieIcfgContainer [2022-12-13 16:05:47,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:05:47,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:05:47,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:05:47,805 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:05:47,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:05:46" (3/4) ... [2022-12-13 16:05:47,808 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:05:47,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-13 16:05:47,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-13 16:05:47,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-13 16:05:47,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-13 16:05:47,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-13 16:05:47,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-13 16:05:47,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-12-13 16:05:47,817 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-13 16:05:47,817 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 16:05:47,817 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:05:47,817 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:05:47,818 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:05:47,836 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-12-13 16:05:47,836 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-12-13 16:05:47,836 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-12-13 16:05:47,836 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 16:05:47,837 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-12-13 16:05:47,837 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) [2022-12-13 16:05:47,837 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-12-13 16:05:47,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 [2022-12-13 16:05:47,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 16:05:47,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2022-12-13 16:05:47,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 16:05:47,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-12-13 16:05:47,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-12-13 16:05:47,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-12-13 16:05:47,839 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 16:05:47,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:05:47,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:05:47,861 INFO L158 Benchmark]: Toolchain (without parser) took 2361.60ms. Allocated memory is still 153.1MB. Free memory was 113.0MB in the beginning and 111.0MB in the end (delta: 1.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,861 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:05:47,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.61ms. Allocated memory is still 153.1MB. Free memory was 113.0MB in the beginning and 94.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.61ms. Allocated memory is still 153.1MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,862 INFO L158 Benchmark]: Boogie Preprocessor took 17.46ms. Allocated memory is still 153.1MB. Free memory was 92.0MB in the beginning and 90.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,862 INFO L158 Benchmark]: RCFGBuilder took 332.24ms. Allocated memory is still 153.1MB. Free memory was 90.4MB in the beginning and 74.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,863 INFO L158 Benchmark]: TraceAbstraction took 1637.87ms. Allocated memory is still 153.1MB. Free memory was 74.2MB in the beginning and 116.3MB in the end (delta: -42.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,863 INFO L158 Benchmark]: Witness Printer took 55.49ms. Allocated memory is still 153.1MB. Free memory was 116.3MB in the beginning and 111.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:05:47,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.61ms. Allocated memory is still 153.1MB. Free memory was 113.0MB in the beginning and 94.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.61ms. Allocated memory is still 153.1MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.46ms. Allocated memory is still 153.1MB. Free memory was 92.0MB in the beginning and 90.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.24ms. Allocated memory is still 153.1MB. Free memory was 90.4MB in the beginning and 74.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1637.87ms. Allocated memory is still 153.1MB. Free memory was 74.2MB in the beginning and 116.3MB in the end (delta: -42.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 55.49ms. Allocated memory is still 153.1MB. Free memory was 116.3MB in the beginning and 111.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 956]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 329 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 1109 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 624 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 485 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 359 PreInvPairs, 409 NumberOfFragments, 357 HoareAnnotationTreeSize, 359 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 1182 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 791]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive) - InvariantResult [Line: 952]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 942]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 712]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 16:05:47,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb13ba33-5908-4906-addf-be5ad904aab0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE