./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc --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 ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e --- 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-5e519f3 [2022-11-02 20:20:13,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:20:13,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:20:14,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:20:14,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:20:14,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:20:14,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:20:14,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:20:14,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:20:14,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:20:14,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:20:14,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:20:14,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:20:14,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:20:14,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:20:14,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:20:14,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:20:14,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:20:14,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:20:14,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:20:14,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:20:14,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:20:14,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:20:14,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:20:14,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:20:14,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:20:14,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:20:14,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:20:14,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:20:14,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:20:14,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:20:14,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:20:14,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:20:14,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:20:14,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:20:14,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:20:14,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:20:14,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:20:14,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:20:14,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:20:14,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:20:14,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:20:14,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:20:14,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:20:14,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:20:14,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:20:14,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:20:14,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:20:14,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:20:14,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:20:14,177 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:20:14,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:20:14,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:20:14,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:20:14,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:20:14,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:20:14,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:20:14,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:20:14,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:20:14,180 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:20:14,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:20:14,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:20:14,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:20:14,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:20:14,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:20:14,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:20:14,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:20:14,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:20:14,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:20:14,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:20:14,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:20:14,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:20:14,183 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:20:14,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:20:14,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:20:14,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e [2022-11-02 20:20:14,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:20:14,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:20:14,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:20:14,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:20:14,570 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:20:14,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2022-11-02 20:20:14,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/data/f30b958f1/f4ed6cf0d0a34311af50e86184fcbeba/FLAG95035d54b [2022-11-02 20:20:15,251 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:20:15,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2022-11-02 20:20:15,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/data/f30b958f1/f4ed6cf0d0a34311af50e86184fcbeba/FLAG95035d54b [2022-11-02 20:20:15,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/data/f30b958f1/f4ed6cf0d0a34311af50e86184fcbeba [2022-11-02 20:20:15,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:20:15,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:20:15,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:20:15,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:20:15,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:20:15,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:20:15" (1/1) ... [2022-11-02 20:20:15,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3740a7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:15, skipping insertion in model container [2022-11-02 20:20:15,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:20:15" (1/1) ... [2022-11-02 20:20:15,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:20:15,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:20:16,114 WARN L230 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_fd04de85-b673-4ef4-a343-34e4abd2f3a5/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c[11292,11305] [2022-11-02 20:20:16,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:20:16,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:20:16,285 WARN L230 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_fd04de85-b673-4ef4-a343-34e4abd2f3a5/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c[11292,11305] [2022-11-02 20:20:16,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:20:16,339 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:20:16,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16 WrapperNode [2022-11-02 20:20:16,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:20:16,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:20:16,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:20:16,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:20:16,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,398 INFO L138 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 20, calls inlined = 14, statements flattened = 186 [2022-11-02 20:20:16,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:20:16,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:20:16,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:20:16,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:20:16,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,448 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:20:16,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:20:16,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:20:16,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:20:16,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (1/1) ... [2022-11-02 20:20:16,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:20:16,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:20:16,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:20:16,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:20:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:20:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-02 20:20:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-02 20:20:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-02 20:20:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-02 20:20:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-02 20:20:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-02 20:20:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:20:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-02 20:20:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-02 20:20:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:20:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:20:16,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:20:16,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:20:16,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:20:16,918 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:20:16,918 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:20:16,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:20:16 BoogieIcfgContainer [2022-11-02 20:20:16,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:20:16,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:20:16,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:20:16,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:20:16,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:20:15" (1/3) ... [2022-11-02 20:20:16,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c26d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:20:16, skipping insertion in model container [2022-11-02 20:20:16,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:20:16" (2/3) ... [2022-11-02 20:20:16,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c26d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:20:16, skipping insertion in model container [2022-11-02 20:20:16,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:20:16" (3/3) ... [2022-11-02 20:20:16,932 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product09.cil.c [2022-11-02 20:20:16,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:20:16,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:20:17,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:20:17,059 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;@1cc36dc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:20:17,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:20:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-02 20:20:17,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:20:17,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:17,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:20:17,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:17,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:17,162 INFO L85 PathProgramCache]: Analyzing trace with hash 801230020, now seen corresponding path program 1 times [2022-11-02 20:20:17,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:17,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076485039] [2022-11-02 20:20:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:17,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:17,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:17,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076485039] [2022-11-02 20:20:17,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076485039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:17,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:17,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:20:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262152622] [2022-11-02 20:20:17,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:17,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:20:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:17,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:20:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:20:17,583 INFO L87 Difference]: Start difference. First operand has 58 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 50 states have internal predecessors, (65), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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) [2022-11-02 20:20:17,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:17,642 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2022-11-02 20:20:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:20:17,645 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 [2022-11-02 20:20:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:17,655 INFO L225 Difference]: With dead ends: 108 [2022-11-02 20:20:17,656 INFO L226 Difference]: Without dead ends: 49 [2022-11-02 20:20:17,662 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 [2022-11-02 20:20:17,673 INFO L413 NwaCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:17,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:20:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-02 20:20:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-02 20:20:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 42 states have internal predecessors, (51), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 20:20:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2022-11-02 20:20:17,744 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 19 [2022-11-02 20:20:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:17,745 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2022-11-02 20:20:17,747 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) [2022-11-02 20:20:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2022-11-02 20:20:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:20:17,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:17,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:20:17,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:20:17,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:17,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:17,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1313726312, now seen corresponding path program 1 times [2022-11-02 20:20:17,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:17,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111160269] [2022-11-02 20:20:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:17,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:17,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:17,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111160269] [2022-11-02 20:20:17,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111160269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:17,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:17,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:20:17,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41208239] [2022-11-02 20:20:17,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:17,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:20:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:20:17,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:20:17,979 INFO L87 Difference]: Start difference. First operand 49 states and 62 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) [2022-11-02 20:20:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:17,992 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-11-02 20:20:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:20:17,993 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 [2022-11-02 20:20:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:17,994 INFO L225 Difference]: With dead ends: 64 [2022-11-02 20:20:17,994 INFO L226 Difference]: Without dead ends: 40 [2022-11-02 20:20:17,995 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 [2022-11-02 20:20:17,997 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:17,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:20:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-02 20:20:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-02 20:20:18,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 36 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:20:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-11-02 20:20:18,006 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 20 [2022-11-02 20:20:18,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:18,006 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-11-02 20:20:18,007 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) [2022-11-02 20:20:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-11-02 20:20:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:20:18,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:18,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:20:18,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:20:18,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:18,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:18,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1888867153, now seen corresponding path program 1 times [2022-11-02 20:20:18,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:18,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452841860] [2022-11-02 20:20:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:18,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:18,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:18,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452841860] [2022-11-02 20:20:18,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452841860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:18,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:18,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:20:18,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653292575] [2022-11-02 20:20:18,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:18,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:20:18,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:20:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:20:18,305 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-11-02 20:20:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:18,437 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2022-11-02 20:20:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:20:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2022-11-02 20:20:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:18,442 INFO L225 Difference]: With dead ends: 73 [2022-11-02 20:20:18,443 INFO L226 Difference]: Without dead ends: 40 [2022-11-02 20:20:18,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:20:18,445 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 76 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:18,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 91 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:20:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-02 20:20:18,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-02 20:20:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 20:20:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-11-02 20:20:18,463 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2022-11-02 20:20:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:18,464 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-11-02 20:20:18,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-11-02 20:20:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2022-11-02 20:20:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-02 20:20:18,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:18,466 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] [2022-11-02 20:20:18,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:20:18,467 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:18,469 INFO L85 PathProgramCache]: Analyzing trace with hash -416752396, now seen corresponding path program 1 times [2022-11-02 20:20:18,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:18,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771589660] [2022-11-02 20:20:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:18,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:18,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:18,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771589660] [2022-11-02 20:20:18,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771589660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:18,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:18,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:20:18,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089570511] [2022-11-02 20:20:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:20:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:18,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:20:18,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:20:18,744 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 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) [2022-11-02 20:20:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:18,858 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2022-11-02 20:20:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:20:18,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 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 [2022-11-02 20:20:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:18,864 INFO L225 Difference]: With dead ends: 99 [2022-11-02 20:20:18,865 INFO L226 Difference]: Without dead ends: 66 [2022-11-02 20:20:18,866 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 [2022-11-02 20:20:18,874 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 24 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:18,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 180 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:20:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-02 20:20:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-02 20:20:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 58 states have internal predecessors, (70), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-02 20:20:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2022-11-02 20:20:18,911 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 25 [2022-11-02 20:20:18,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:18,912 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2022-11-02 20:20:18,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 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) [2022-11-02 20:20:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2022-11-02 20:20:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 20:20:18,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:18,916 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] [2022-11-02 20:20:18,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:20:18,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:18,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 414035503, now seen corresponding path program 1 times [2022-11-02 20:20:18,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:18,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850116025] [2022-11-02 20:20:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:18,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:19,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:19,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850116025] [2022-11-02 20:20:19,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850116025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:19,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:19,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:20:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295434039] [2022-11-02 20:20:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:20:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:20:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:20:19,026 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-11-02 20:20:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:19,060 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-11-02 20:20:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:20:19,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 27 [2022-11-02 20:20:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:19,065 INFO L225 Difference]: With dead ends: 97 [2022-11-02 20:20:19,066 INFO L226 Difference]: Without dead ends: 63 [2022-11-02 20:20:19,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:20:19,073 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:19,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 43 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:20:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-02 20:20:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-02 20:20:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 55 states have internal predecessors, (64), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-02 20:20:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-11-02 20:20:19,103 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 27 [2022-11-02 20:20:19,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:19,104 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-11-02 20:20:19,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-11-02 20:20:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-11-02 20:20:19,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:20:19,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:19,113 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] [2022-11-02 20:20:19,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:20:19,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:19,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1118685262, now seen corresponding path program 1 times [2022-11-02 20:20:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:19,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670734489] [2022-11-02 20:20:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:20:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:19,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:19,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:19,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670734489] [2022-11-02 20:20:19,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670734489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:19,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:19,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:20:19,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171743115] [2022-11-02 20:20:19,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:19,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:20:19,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:19,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:20:19,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:20:19,288 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:20:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:19,405 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-11-02 20:20:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:20:19,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2022-11-02 20:20:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:19,408 INFO L225 Difference]: With dead ends: 68 [2022-11-02 20:20:19,408 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:20:19,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:20:19,411 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:19,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 132 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:20:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:20:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:20:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:20:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:20:19,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-02 20:20:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:19,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:20:19,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:20:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:20:19,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:20:19,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:20:19,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:20:19,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:20:19,943 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 484 495) the Hoare annotation is: true [2022-11-02 20:20:19,943 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 484 495) no Hoare annotation was computed. [2022-11-02 20:20:19,943 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 484 495) no Hoare annotation was computed. [2022-11-02 20:20:19,944 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 772 801) no Hoare annotation was computed. [2022-11-02 20:20:19,944 INFO L902 garLoopResultBuilder]: At program point L797(lines 772 801) the Hoare annotation is: true [2022-11-02 20:20:19,944 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 772 801) the Hoare annotation is: true [2022-11-02 20:20:19,944 INFO L899 garLoopResultBuilder]: For program point L793(line 793) no Hoare annotation was computed. [2022-11-02 20:20:19,945 INFO L899 garLoopResultBuilder]: For program point L786(lines 786 790) no Hoare annotation was computed. [2022-11-02 20:20:19,945 INFO L902 garLoopResultBuilder]: At program point L786-1(lines 786 790) the Hoare annotation is: true [2022-11-02 20:20:19,945 INFO L899 garLoopResultBuilder]: For program point L783(line 783) no Hoare annotation was computed. [2022-11-02 20:20:19,945 INFO L902 garLoopResultBuilder]: At program point L782-2(lines 782 796) the Hoare annotation is: true [2022-11-02 20:20:19,945 INFO L902 garLoopResultBuilder]: At program point L778(line 778) the Hoare annotation is: true [2022-11-02 20:20:19,946 INFO L899 garLoopResultBuilder]: For program point L778-1(line 778) no Hoare annotation was computed. [2022-11-02 20:20:19,946 INFO L895 garLoopResultBuilder]: At program point L533(lines 528 536) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-11-02 20:20:19,947 INFO L895 garLoopResultBuilder]: At program point L692(lines 687 695) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-11-02 20:20:19,947 INFO L899 garLoopResultBuilder]: For program point L622-1(lines 622 628) no Hoare annotation was computed. [2022-11-02 20:20:19,947 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 611 634) no Hoare annotation was computed. [2022-11-02 20:20:19,947 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-11-02 20:20:19,948 INFO L895 garLoopResultBuilder]: At program point L639(lines 635 641) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-02 20:20:19,948 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2022-11-02 20:20:19,948 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 448) no Hoare annotation was computed. [2022-11-02 20:20:19,948 INFO L895 garLoopResultBuilder]: At program point L435-1(lines 427 451) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-02 20:20:19,949 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-11-02 20:20:19,949 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 611 634) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-02 20:20:19,949 INFO L895 garLoopResultBuilder]: At program point L464-2(lines 460 471) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2022-11-02 20:20:19,949 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 611 634) no Hoare annotation was computed. [2022-11-02 20:20:19,950 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2022-11-02 20:20:19,950 INFO L899 garLoopResultBuilder]: For program point L615-1(lines 614 633) no Hoare annotation was computed. [2022-11-02 20:20:19,950 INFO L895 garLoopResultBuilder]: At program point L421(lines 416 423) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2022-11-02 20:20:19,950 INFO L895 garLoopResultBuilder]: At program point L766(lines 761 769) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-02 20:20:19,951 INFO L895 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-02 20:20:19,951 INFO L895 garLoopResultBuilder]: At program point L758(lines 754 760) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-02 20:20:19,951 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 860) no Hoare annotation was computed. [2022-11-02 20:20:19,951 INFO L899 garLoopResultBuilder]: For program point L853-2(lines 853 860) no Hoare annotation was computed. [2022-11-02 20:20:19,952 INFO L895 garLoopResultBuilder]: At program point L593(lines 550 595) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-02 20:20:19,952 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 566) no Hoare annotation was computed. [2022-11-02 20:20:19,952 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 560 566) no Hoare annotation was computed. [2022-11-02 20:20:19,952 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 556) no Hoare annotation was computed. [2022-11-02 20:20:19,952 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:20:19,953 INFO L902 garLoopResultBuilder]: At program point L862(lines 843 865) the Hoare annotation is: true [2022-11-02 20:20:19,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:20:19,953 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:20:19,953 INFO L895 garLoopResultBuilder]: At program point L751(lines 747 753) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-02 20:20:19,954 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-11-02 20:20:19,954 INFO L895 garLoopResultBuilder]: At program point L586-2(lines 580 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-02 20:20:19,954 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:20:19,954 INFO L895 garLoopResultBuilder]: At program point L830(lines 826 832) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-02 20:20:19,955 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2022-11-02 20:20:19,955 INFO L899 garLoopResultBuilder]: For program point L570-1(lines 570 576) no Hoare annotation was computed. [2022-11-02 20:20:19,955 INFO L902 garLoopResultBuilder]: At program point L599(lines 540 603) the Hoare annotation is: true [2022-11-02 20:20:19,955 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-11-02 20:20:19,956 INFO L895 garLoopResultBuilder]: At program point L596(lines 549 597) the Hoare annotation is: false [2022-11-02 20:20:19,956 INFO L902 garLoopResultBuilder]: At program point L840(lines 833 842) the Hoare annotation is: true [2022-11-02 20:20:19,956 INFO L899 garLoopResultBuilder]: For program point L551(lines 550 595) no Hoare annotation was computed. [2022-11-02 20:20:19,956 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 591) no Hoare annotation was computed. [2022-11-02 20:20:19,956 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 472 483) no Hoare annotation was computed. [2022-11-02 20:20:19,957 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 472 483) no Hoare annotation was computed. [2022-11-02 20:20:19,957 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 472 483) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-02 20:20:19,961 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 20:20:19,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:20:19,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:20:19 BoogieIcfgContainer [2022-11-02 20:20:19,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:20:19,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:20:19,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:20:19,985 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:20:19,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:20:16" (3/4) ... [2022-11-02 20:20:19,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:20:20,000 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-02 20:20:20,001 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-02 20:20:20,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-02 20:20:20,004 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-02 20:20:20,014 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-02 20:20:20,014 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-02 20:20:20,014 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-02 20:20:20,015 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 20:20:20,016 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:20:20,016 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:20:20,016 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:20:20,054 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-02 20:20:20,054 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-11-02 20:20:20,056 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive [2022-11-02 20:20:20,058 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel [2022-11-02 20:20:20,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) [2022-11-02 20:20:20,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2022-11-02 20:20:20,062 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-02 20:20:20,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:20:20,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:20:20,100 INFO L158 Benchmark]: Toolchain (without parser) took 4496.79ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 57.7MB in the beginning and 58.3MB in the end (delta: -692.4kB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,100 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 87.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 733.40ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 66.9MB in the end (delta: -9.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.50ms. Allocated memory is still 98.6MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,101 INFO L158 Benchmark]: Boogie Preprocessor took 53.55ms. Allocated memory is still 98.6MB. Free memory was 64.8MB in the beginning and 63.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,102 INFO L158 Benchmark]: RCFGBuilder took 467.82ms. Allocated memory is still 98.6MB. Free memory was 63.1MB in the beginning and 47.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,103 INFO L158 Benchmark]: TraceAbstraction took 3060.40ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 46.7MB in the beginning and 62.5MB in the end (delta: -15.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,104 INFO L158 Benchmark]: Witness Printer took 114.37ms. Allocated memory is still 130.0MB. Free memory was 62.5MB in the beginning and 58.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:20:20,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 87.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 733.40ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 66.9MB in the end (delta: -9.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.50ms. Allocated memory is still 98.6MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.55ms. Allocated memory is still 98.6MB. Free memory was 64.8MB in the beginning and 63.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.82ms. Allocated memory is still 98.6MB. Free memory was 63.1MB in the beginning and 47.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3060.40ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 46.7MB in the beginning and 62.5MB in the end (delta: -15.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 114.37ms. Allocated memory is still 130.0MB. Free memory was 62.5MB in the beginning and 58.3MB in the end (delta: 4.2MB). 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: 420]: 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 5 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 599 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 305 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 294 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 104 PreInvPairs, 124 NumberOfFragments, 269 HoareAnnotationTreeSize, 104 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 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: 772]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 833]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 761]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 528]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) && (((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive - InvariantResult [Line: 843]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 == systemActive) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-11-02 20:20:20,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd04de85-b673-4ef4-a343-34e4abd2f3a5/bin/uautomizer-Dbtcem3rbc/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