./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ --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 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 --- 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-dbf71c6-m [2022-10-17 10:16:53,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:16:53,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:16:53,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:16:53,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:16:53,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:16:53,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:16:53,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:16:53,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:16:53,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:16:53,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:16:53,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:16:53,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:16:53,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:16:53,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:16:53,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:16:53,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:16:53,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:16:53,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:16:53,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:16:53,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:16:53,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:16:53,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:16:53,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:16:53,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:16:53,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:16:53,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:16:53,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:16:53,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:16:53,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:16:53,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:16:53,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:16:53,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:16:53,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:16:53,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:16:53,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:16:53,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:16:53,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:16:53,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:16:53,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:16:53,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:16:53,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:16:53,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:16:53,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:16:53,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:16:53,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:16:53,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:16:53,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:16:53,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:16:53,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:16:53,851 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:16:53,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:16:53,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:16:53,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:16:53,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:16:53,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:16:53,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:16:53,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:16:53,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:16:53,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:16:53,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:16:53,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:16:53,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:16:53,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:16:53,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:16:53,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:16:53,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:53,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:16:53,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:16:53,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:16:53,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:16:53,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:16:53,865 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:16:53,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:16:53,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:16:53,866 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_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 [2022-10-17 10:16:54,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:16:54,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:16:54,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:16:54,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:16:54,137 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:16:54,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2022-10-17 10:16:54,203 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/data/b9468d19b/f8f363b8edcc43dcb9efb510f8758191/FLAG296c276ed [2022-10-17 10:16:54,700 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:16:54,703 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2022-10-17 10:16:54,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/data/b9468d19b/f8f363b8edcc43dcb9efb510f8758191/FLAG296c276ed [2022-10-17 10:16:55,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/data/b9468d19b/f8f363b8edcc43dcb9efb510f8758191 [2022-10-17 10:16:55,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:16:55,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:16:55,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:55,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:16:55,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:16:55,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a80330d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55, skipping insertion in model container [2022-10-17 10:16:55,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:16:55,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:16:55,298 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_83f9bbbe-bef1-46d0-8244-4bb55c12443f/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2022-10-17 10:16:55,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:55,422 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:16:55,435 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_83f9bbbe-bef1-46d0-8244-4bb55c12443f/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2022-10-17 10:16:55,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:55,538 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:16:55,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55 WrapperNode [2022-10-17 10:16:55,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:55,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:55,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:16:55,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:16:55,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,588 INFO L138 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 248 [2022-10-17 10:16:55,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:55,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:16:55,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:16:55,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:16:55,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:16:55,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:16:55,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:16:55,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:16:55,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (1/1) ... [2022-10-17 10:16:55,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:55,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:16:55,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:16:55,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:16:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:16:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:16:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:16:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:16:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:16:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:16:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:16:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:16:55,734 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:16:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:16:55,735 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:16:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-10-17 10:16:55,735 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-10-17 10:16:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:16:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:16:55,736 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:16:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:16:55,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:16:55,816 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:16:55,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:16:56,256 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:16:56,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:16:56,265 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:16:56,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:56 BoogieIcfgContainer [2022-10-17 10:16:56,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:16:56,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:16:56,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:16:56,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:16:56,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:16:55" (1/3) ... [2022-10-17 10:16:56,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8be094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:56, skipping insertion in model container [2022-10-17 10:16:56,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:55" (2/3) ... [2022-10-17 10:16:56,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8be094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:16:56, skipping insertion in model container [2022-10-17 10:16:56,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:56" (3/3) ... [2022-10-17 10:16:56,286 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2022-10-17 10:16:56,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:16:56,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:16:56,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:16:56,389 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;@57bc9daf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:16:56,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:16:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:16:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:16:56,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:56,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:16:56,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1885367060, now seen corresponding path program 1 times [2022-10-17 10:16:56,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:56,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096397361] [2022-10-17 10:16:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:56,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:56,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096397361] [2022-10-17 10:16:56,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096397361] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:56,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:56,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:16:56,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085598566] [2022-10-17 10:16:56,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:56,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:16:56,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:16:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:16:56,654 INFO L87 Difference]: Start difference. First operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:56,687 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2022-10-17 10:16:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:16:56,690 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 [2022-10-17 10:16:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:56,699 INFO L225 Difference]: With dead ends: 164 [2022-10-17 10:16:56,699 INFO L226 Difference]: Without dead ends: 77 [2022-10-17 10:16:56,703 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 [2022-10-17 10:16:56,707 INFO L413 NwaCegarLoop]: 109 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, 109 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 [2022-10-17 10:16:56,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:16:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-17 10:16:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-10-17 10:16:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 65 states have internal predecessors, (75), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-17 10:16:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-10-17 10:16:56,759 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2022-10-17 10:16:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:56,761 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-10-17 10:16:56,761 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) [2022-10-17 10:16:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-10-17 10:16:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 10:16:56,765 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:56,765 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] [2022-10-17 10:16:56,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:16:56,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:56,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:56,766 INFO L85 PathProgramCache]: Analyzing trace with hash -633787630, now seen corresponding path program 1 times [2022-10-17 10:16:56,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:56,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874246390] [2022-10-17 10:16:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:56,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:56,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:56,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:56,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874246390] [2022-10-17 10:16:56,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874246390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:56,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:56,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:16:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433788177] [2022-10-17 10:16:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:56,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:16:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:16:56,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:16:56,930 INFO L87 Difference]: Start difference. First operand 77 states and 100 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) [2022-10-17 10:16:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:56,951 INFO L93 Difference]: Finished difference Result 116 states and 150 transitions. [2022-10-17 10:16:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:16:56,952 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 [2022-10-17 10:16:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:56,953 INFO L225 Difference]: With dead ends: 116 [2022-10-17 10:16:56,953 INFO L226 Difference]: Without dead ends: 68 [2022-10-17 10:16:56,955 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 [2022-10-17 10:16:56,956 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 16 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 153 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 [2022-10-17 10:16:56,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:16:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-17 10:16:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-17 10:16:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 59 states have internal predecessors, (68), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-17 10:16:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2022-10-17 10:16:56,969 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2022-10-17 10:16:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:56,970 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2022-10-17 10:16:56,970 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) [2022-10-17 10:16:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2022-10-17 10:16:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 10:16:56,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:56,971 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] [2022-10-17 10:16:56,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:16:56,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1735953232, now seen corresponding path program 1 times [2022-10-17 10:16:56,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:56,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920439435] [2022-10-17 10:16:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:56,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:57,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:57,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920439435] [2022-10-17 10:16:57,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920439435] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:57,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:57,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:16:57,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087283942] [2022-10-17 10:16:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:57,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:16:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:16:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:16:57,188 INFO L87 Difference]: Start difference. First operand 68 states and 88 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) [2022-10-17 10:16:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:57,440 INFO L93 Difference]: Finished difference Result 227 states and 301 transitions. [2022-10-17 10:16:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:16:57,440 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 [2022-10-17 10:16:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:57,447 INFO L225 Difference]: With dead ends: 227 [2022-10-17 10:16:57,448 INFO L226 Difference]: Without dead ends: 166 [2022-10-17 10:16:57,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:16:57,457 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 234 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:16:57,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 388 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:16:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-10-17 10:16:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2022-10-17 10:16:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 137 states have internal predecessors, (163), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (25), 14 states have call predecessors, (25), 24 states have call successors, (25) [2022-10-17 10:16:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2022-10-17 10:16:57,490 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 24 [2022-10-17 10:16:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:57,490 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2022-10-17 10:16:57,490 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) [2022-10-17 10:16:57,490 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2022-10-17 10:16:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 10:16:57,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:57,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:16:57,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:16:57,493 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:57,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash -908810234, now seen corresponding path program 1 times [2022-10-17 10:16:57,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:57,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951356219] [2022-10-17 10:16:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:57,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:57,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:57,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951356219] [2022-10-17 10:16:57,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951356219] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:57,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:57,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:16:57,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550905896] [2022-10-17 10:16:57,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:57,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:16:57,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:57,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:16:57,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:16:57,693 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:57,775 INFO L93 Difference]: Finished difference Result 449 states and 617 transitions. [2022-10-17 10:16:57,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:16:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-17 10:16:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:57,786 INFO L225 Difference]: With dead ends: 449 [2022-10-17 10:16:57,786 INFO L226 Difference]: Without dead ends: 296 [2022-10-17 10:16:57,790 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 [2022-10-17 10:16:57,798 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 60 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:16:57,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 353 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:16:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-10-17 10:16:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2022-10-17 10:16:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 218 states have (on average 1.348623853211009) internal successors, (294), 250 states have internal predecessors, (294), 48 states have call successors, (48), 32 states have call predecessors, (48), 29 states have return successors, (54), 25 states have call predecessors, (54), 48 states have call successors, (54) [2022-10-17 10:16:57,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 396 transitions. [2022-10-17 10:16:57,892 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 396 transitions. Word has length 28 [2022-10-17 10:16:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:57,893 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 396 transitions. [2022-10-17 10:16:57,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 396 transitions. [2022-10-17 10:16:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 10:16:57,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:57,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:16:57,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:16:57,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:57,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:57,906 INFO L85 PathProgramCache]: Analyzing trace with hash -89703733, now seen corresponding path program 1 times [2022-10-17 10:16:57,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:57,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382376391] [2022-10-17 10:16:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:58,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382376391] [2022-10-17 10:16:58,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382376391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:58,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:58,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:16:58,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347234797] [2022-10-17 10:16:58,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:58,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:16:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:58,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:16:58,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:16:58,027 INFO L87 Difference]: Start difference. First operand 296 states and 396 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:58,066 INFO L93 Difference]: Finished difference Result 504 states and 684 transitions. [2022-10-17 10:16:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:16:58,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-17 10:16:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:58,074 INFO L225 Difference]: With dead ends: 504 [2022-10-17 10:16:58,074 INFO L226 Difference]: Without dead ends: 215 [2022-10-17 10:16:58,076 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 [2022-10-17 10:16:58,078 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:16:58,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:16:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-10-17 10:16:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2022-10-17 10:16:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 171 states have internal predecessors, (202), 26 states have call successors, (26), 26 states have call predecessors, (26), 23 states have return successors, (28), 23 states have call predecessors, (28), 26 states have call successors, (28) [2022-10-17 10:16:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 256 transitions. [2022-10-17 10:16:58,144 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 256 transitions. Word has length 30 [2022-10-17 10:16:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:58,145 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 256 transitions. [2022-10-17 10:16:58,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 256 transitions. [2022-10-17 10:16:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:16:58,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:16:58,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:16:58,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:16:58,148 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:16:58,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash 520035500, now seen corresponding path program 1 times [2022-10-17 10:16:58,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:58,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187408524] [2022-10-17 10:16:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:58,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:16:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:58,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:58,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187408524] [2022-10-17 10:16:58,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187408524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:58,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:58,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:16:58,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95716255] [2022-10-17 10:16:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:58,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:16:58,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:58,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:16:58,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:16:58,295 INFO L87 Difference]: Start difference. First operand 211 states and 256 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:16:58,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:58,400 INFO L93 Difference]: Finished difference Result 226 states and 272 transitions. [2022-10-17 10:16:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:16:58,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-10-17 10:16:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:16:58,402 INFO L225 Difference]: With dead ends: 226 [2022-10-17 10:16:58,403 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:16:58,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:16:58,406 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 53 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:16:58,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 150 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:16:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:16:58,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:16:58,409 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) [2022-10-17 10:16:58,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:16:58,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-10-17 10:16:58,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:16:58,410 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:16:58,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:16:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:16:58,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:16:58,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:16:58,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:16:58,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:16:59,176 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 728 735) the Hoare annotation is: true [2022-10-17 10:16:59,176 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 728 735) no Hoare annotation was computed. [2022-10-17 10:16:59,176 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 728 735) no Hoare annotation was computed. [2022-10-17 10:16:59,177 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 661 667) no Hoare annotation was computed. [2022-10-17 10:16:59,177 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 661 667) the Hoare annotation is: true [2022-10-17 10:16:59,177 INFO L899 garLoopResultBuilder]: For program point L462-1(lines 458 469) no Hoare annotation was computed. [2022-10-17 10:16:59,177 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 458 469) the Hoare annotation is: true [2022-10-17 10:16:59,177 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2022-10-17 10:16:59,177 INFO L899 garLoopResultBuilder]: For program point L865(line 865) no Hoare annotation was computed. [2022-10-17 10:16:59,177 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 854 883) no Hoare annotation was computed. [2022-10-17 10:16:59,178 INFO L902 garLoopResultBuilder]: At program point L864-2(lines 864 878) the Hoare annotation is: true [2022-10-17 10:16:59,178 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 854 883) the Hoare annotation is: true [2022-10-17 10:16:59,178 INFO L902 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: true [2022-10-17 10:16:59,178 INFO L899 garLoopResultBuilder]: For program point L860-1(line 860) no Hoare annotation was computed. [2022-10-17 10:16:59,178 INFO L902 garLoopResultBuilder]: At program point L879(lines 854 883) the Hoare annotation is: true [2022-10-17 10:16:59,178 INFO L899 garLoopResultBuilder]: For program point L875(line 875) no Hoare annotation was computed. [2022-10-17 10:16:59,178 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2022-10-17 10:16:59,179 INFO L902 garLoopResultBuilder]: At program point L868-1(lines 868 872) the Hoare annotation is: true [2022-10-17 10:16:59,179 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 637 660) no Hoare annotation was computed. [2022-10-17 10:16:59,179 INFO L895 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,179 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,179 INFO L895 garLoopResultBuilder]: At program point L507(lines 502 510) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-10-17 10:16:59,179 INFO L895 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-10-17 10:16:59,180 INFO L895 garLoopResultBuilder]: At program point L714-1(lines 695 719) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-10-17 10:16:59,180 INFO L895 garLoopResultBuilder]: At program point L743(lines 736 746) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,180 INFO L899 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2022-10-17 10:16:59,180 INFO L895 garLoopResultBuilder]: At program point L475(lines 470 478) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,180 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2022-10-17 10:16:59,180 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-10-17 10:16:59,180 INFO L895 garLoopResultBuilder]: At program point L438-2(lines 434 445) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,181 INFO L895 garLoopResultBuilder]: At program point L752(lines 747 755) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-10-17 10:16:59,181 INFO L899 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2022-10-17 10:16:59,181 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2022-10-17 10:16:59,181 INFO L895 garLoopResultBuilder]: At program point L835-1(lines 827 851) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-10-17 10:16:59,181 INFO L899 garLoopResultBuilder]: For program point L641-1(lines 640 659) no Hoare annotation was computed. [2022-10-17 10:16:59,181 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 711) no Hoare annotation was computed. [2022-10-17 10:16:59,182 INFO L899 garLoopResultBuilder]: For program point L699(lines 699 716) no Hoare annotation was computed. [2022-10-17 10:16:59,182 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-10-17 10:16:59,182 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 637 660) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-10-17 10:16:59,182 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 637 660) no Hoare annotation was computed. [2022-10-17 10:16:59,182 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-10-17 10:16:59,182 INFO L895 garLoopResultBuilder]: At program point L539(lines 535 541) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:16:59,183 INFO L902 garLoopResultBuilder]: At program point L944(lines 925 947) the Hoare annotation is: true [2022-10-17 10:16:59,183 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:16:59,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:16:59,183 INFO L899 garLoopResultBuilder]: For program point L573(lines 572 619) no Hoare annotation was computed. [2022-10-17 10:16:59,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:16:59,183 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 615) no Hoare annotation was computed. [2022-10-17 10:16:59,183 INFO L895 garLoopResultBuilder]: At program point L594(line 594) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 10:16:59,183 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: false [2022-10-17 10:16:59,184 INFO L895 garLoopResultBuilder]: At program point L912(lines 908 914) 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~8#1| ~systemActive~0)) [2022-10-17 10:16:59,184 INFO L902 garLoopResultBuilder]: At program point L623(lines 562 627) the Hoare annotation is: true [2022-10-17 10:16:59,184 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 588) no Hoare annotation was computed. [2022-10-17 10:16:59,184 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2022-10-17 10:16:59,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:16:59,184 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2022-10-17 10:16:59,184 INFO L895 garLoopResultBuilder]: At program point L620(lines 571 621) the Hoare annotation is: false [2022-10-17 10:16:59,185 INFO L895 garLoopResultBuilder]: At program point L554(lines 549 557) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:16:59,185 INFO L895 garLoopResultBuilder]: At program point L546(lines 542 548) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:16:59,185 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 614) no Hoare annotation was computed. [2022-10-17 10:16:59,185 INFO L895 garLoopResultBuilder]: At program point L608-2(lines 602 615) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 10:16:59,185 INFO L902 garLoopResultBuilder]: At program point L922(lines 915 924) the Hoare annotation is: true [2022-10-17 10:16:59,185 INFO L895 garLoopResultBuilder]: At program point L823(lines 811 825) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 592 598) no Hoare annotation was computed. [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 821) no Hoare annotation was computed. [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L815-1(lines 815 821) no Hoare annotation was computed. [2022-10-17 10:16:59,186 INFO L895 garLoopResultBuilder]: At program point L617(lines 572 619) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 10:16:59,186 INFO L895 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L935(lines 935 942) no Hoare annotation was computed. [2022-10-17 10:16:59,186 INFO L899 garLoopResultBuilder]: For program point L935-2(lines 935 942) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 446 457) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 446 457) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-10-17 10:16:59,187 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 690) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 805) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L899 garLoopResultBuilder]: For program point L801-2(lines 801 805) no Hoare annotation was computed. [2022-10-17 10:16:59,187 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 669 693) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,187 INFO L895 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,188 INFO L899 garLoopResultBuilder]: For program point L688-1(lines 669 693) no Hoare annotation was computed. [2022-10-17 10:16:59,188 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 669 693) no Hoare annotation was computed. [2022-10-17 10:16:59,188 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,188 INFO L895 garLoopResultBuilder]: At program point L807(lines 792 810) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,188 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,188 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 685) no Hoare annotation was computed. [2022-10-17 10:16:59,188 INFO L895 garLoopResultBuilder]: At program point L516(lines 511 519) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-10-17 10:16:59,192 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 10:16:59,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:16:59,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:16:59 BoogieIcfgContainer [2022-10-17 10:16:59,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:16:59,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:16:59,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:16:59,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:16:59,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:56" (3/4) ... [2022-10-17 10:16:59,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:16:59,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-10-17 10:16:59,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-10-17 10:16:59,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-10-17 10:16:59,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-10-17 10:16:59,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-10-17 10:16:59,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-10-17 10:16:59,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:16:59,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2022-10-17 10:16:59,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-10-17 10:16:59,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 10:16:59,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 10:16:59,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:16:59,233 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:16:59,233 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:16:59,257 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-10-17 10:16:59,257 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-10-17 10:16:59,258 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-10-17 10:16:59,259 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-10-17 10:16:59,260 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-10-17 10:16:59,260 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-10-17 10:16:59,260 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2022-10-17 10:16:59,261 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-10-17 10:16:59,261 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-10-17 10:16:59,261 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-10-17 10:16:59,262 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-10-17 10:16:59,262 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-10-17 10:16:59,307 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:16:59,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:16:59,308 INFO L158 Benchmark]: Toolchain (without parser) took 4271.73ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 58.8MB in the beginning and 52.6MB in the end (delta: 6.2MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,309 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:16:59,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.64ms. Allocated memory is still 86.0MB. Free memory was 58.6MB in the beginning and 50.2MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.55ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,310 INFO L158 Benchmark]: Boogie Preprocessor took 47.46ms. Allocated memory is still 86.0MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,311 INFO L158 Benchmark]: RCFGBuilder took 630.56ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.0MB in the beginning and 71.1MB in the end (delta: -25.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,311 INFO L158 Benchmark]: TraceAbstraction took 2941.47ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 70.1MB in the beginning and 58.9MB in the end (delta: 11.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,312 INFO L158 Benchmark]: Witness Printer took 95.77ms. Allocated memory is still 125.8MB. Free memory was 58.9MB in the beginning and 52.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:16:59,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.64ms. Allocated memory is still 86.0MB. Free memory was 58.6MB in the beginning and 50.2MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.55ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.46ms. Allocated memory is still 86.0MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.56ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.0MB in the beginning and 71.1MB in the end (delta: -25.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2941.47ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 70.1MB in the beginning and 58.9MB in the end (delta: 11.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 95.77ms. Allocated memory is still 125.8MB. Free memory was 58.9MB in the beginning and 52.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 401 mSDsluCounter, 1206 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 710 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 496 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 493 PreInvPairs, 559 NumberOfFragments, 306 HoareAnnotationTreeSize, 493 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 41 FomulaSimplificationsInter, 1929 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 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: 511]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 811]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 915]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 736]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 10:16:59,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83f9bbbe-bef1-46d0-8244-4bb55c12443f/bin/uautomizer-J5u9QxTXDZ/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